Source Code

These source-code files were from the printout at the MIT Museum, with many thanks to Deborah Douglas, the Museum's Curator of Science and Technology, for releasing it to us. The printout was digitally photographed by Paul Fjeld. A team of volunteers transcribed the source code manually from these images or, where appropriate, modified already-transcribed but similar source Colossus 249 (Apollo 9) source code to agree with the images from the printout. Note that the page images presented online are of reduced quality, and that higher-quality images are available. Report any conversion errors or legibility problems in page images to info@sandroid.org. Notations on the program listing read, in part:

	GAP:  ASSEMBLE REVISION 055 OF AGC PROGRAM COMANCHE BY NASA 2021113-051
	10:28 APR.  1,1969
Note that the date is the date of the printout, not the date of the program revision.

039410,000002:                                                                                                  ## Copyright:   Public domain.
039411,000003:                                                                                                  ## Filename:    P37_P70.agc
039412,000004:                                                                                                  ## Purpose:     Part of the source code for Colossus 2A, AKA Comanche 055.
039413,000005:                                                                                                  ##              It is part of the source code for the Command Module's (CM)
039414,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
039415,000007:                                                                                                  ## Assembler:   yaYUL
039416,000008:                                                                                                  ## Contact:     Jim Lawton <jim.lawton@gmail.com>.
039417,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo.
039418,000010:                                                                                                  ## Pages:       890-933
039419,000011:                                                                                                  ## Mod history: 2009-05-11 JVL  Adapted from the Colossus249/ file
039420,000012:                                                                                                  ##                              of the same name, using Comanche055 page
039421,000013:                                                                                                  ##                              images.
039422,000014:                                                                                                  ##              2009-05-20 RSB  Added missing label V2T179.  Fixed POODOO -> P00DOO.
039423,000015:                                                                                                  ##              2009-05-23 RSB  In RTD18, corrected a STOVL DELVLVC to 
039424,000016:                                                                                                  ##                              STODL DELVLVC and a STODL 02D to STORE 02D.
039425,000017:                                                                                                  ##              2010-08-28 JL   Added missing comment characters.
039426,000018:                                                                                                  ##
039427,000019:                                                                                                  ## This source code has been transcribed or otherwise adapted from digitized
039428,000020:                                                                                                  ## images of a hardcopy from the MIT Museum.  The digitization was performed
039429,000021:                                                                                                  ## by Paul Fjeld, and arranged for by Deborah Douglas of the Museum.  Many
039430,000022:                                                                                                  ## thanks to both.  The images (with suitable reduction in storage size and
039431,000023:                                                                                                  ## consequent reduction in image quality as well) are available online at
039432,000024:                                                                                                  ## www.ibiblio.org/apollo.  If for some reason you find that the images are
039433,000025:                                                                                                  ## illegible, contact me at info@sandroid.org about getting access to the
039434,000026:                                                                                                  ## (much) higher-quality images which Paul actually created.
039435,000027:                                                                                                  ##
039436,000028:                                                                                                  ## Notations on the hardcopy document read, in part:
039437,000029:                                                                                                  ##
039438,000030:                                                                                                  ##    Assemble revision 055 of AGC program Comanche by NASA
039439,000031:                                                                                                  ##    2021113-051.  10:28 APR. 1, 1969 
039440,000032:                                                                                                  ##
039441,000033:                                                                                                  ##    This AGC program shall also be referred to as
039442,000034:                                                                                                  ##            Colossus 2A
039443,000035: 

Page 890

039445,000037: 31,3700                                           BANK     31                                    
039446,000038: 36,2000                                           SETLOC   RTE1                                  
039447,000039: 36,2000                                           BANK                                           
039448,000040: 
039449,000041: 36,2466  E7,1631                                  EBANK=   RTEDVD                                
039450,000042: 36,2466                                           COUNT    31/P37                                
039451,000043: 
039452,000044:                                                                                                  #  PROGRAM DESCRIPTION:  P37, RETURN TO EARTH
039453,000045: 
039454,000046:                                                                                                  #  DESCRIPTION
039455,000047:                                                                                                  #        A RETURN TO EARTH TRAJECTORY IS COMPUTED PROVIDED THE CSM IS OUTSIDE THE LUNAR SPHERE OF INFLUENCE AT THE
039456,000048:                                                                                                  #        TIME OF IGNITION.  INITIALLY A CONIC TRAJECTORY IS DETERMINED AND RESULTING IGNITION AND REENTRY PARAMETERS ARE
039457,000049:                                                                                                  #        DISPLAYED TO THE ASTRONAUT.  THEN IF THE ASTRONAUT SO DESIRES, A PRECISION TRAJECTORY IS DETERMINED WTIH THE
039458,000050:                                                                                                  #        RESULTING IGNITION AND REENTRY PARAMETERS DISPLAYED.  UPON FINAL ACCEPTANCE BY THE ASTRONAUT, THE PROGRAM
039459,000051:                                                                                                  #        COMPUTES AND STORES THE TARGET PARAMETERS FOR RETURN TO EARTH FOR USE BY SPS PROGRAM (P40) OR RCS PROGRAM (P41).
039460,000052: 
039461,000053:                                                                                                  #  CALLING SEQUENCE
039462,000054:                                                                                                  #        L       TC      P37
039463,000055: 
039464,000056:                                                                                                  #  SUBROUTINES CALLED
039465,000057:                                                                                                  #        PREC100
039466,000058:                                                                                                  #                V2T100
039467,000059:                                                                                                  #                RTENCK2
039468,000060:                                                                                                  #                RTENCK3
039469,000061:                                                                                                  #                TIMERAD
039470,000062:                                                                                                  #                PARAM
039471,000063:                                                                                                  #        V2T100
039472,000064:                                                                                                  #                GAMDV10
039473,000065:                                                                                                  #                XT1LIM
039474,000066:                                                                                                  #                DVCALC
039475,000067:                                                                                                  #        RTENCK1
039476,000068:                                                                                                  #                INTSTALL
039477,000069:                                                                                                  #                INTEGRVS
039478,000070:                                                                                                  #        RTEVN
039479,000071:                                                                                                  #                RETDISP
039480,000072:                                                                                                  #                TMRAD100
039481,000073:                                                                                                  #                AUGEKUGL
039482,000074:                                                                                                  #                LAT-LONG
039483,000075:                                                                                                  #        TMRAD100
039484,000076:                                                                                                  #                TIMERAD
039485,000077:                                                                                                  #        INVC100
039486,000078:                                                                                                  #                CSMPREC
039487,000079:                                                                                                  #        GETERAD
039488,000080:                                                                                                  #        TIMETHET
039489,000081:                                                                                                  #        P370ALRM
039490,000082:                                                                                                  #        VN1645
039491,000083:                                                                                                  #        POLY
039492,000084: 
039493,000085:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
039494,000086:                                                                                                  #        CSM STATE VECTOR

Page 891

039496,000088:                                                                                                  #        NJETSFLG        NUMBER OF JETS IF THE RCS PROPULSION SYSTEM SELECTED    STATE FLAG      0=4 JETS  1=2 JETS
039497,000089: 
039498,000090:                                                                                                  #  ASTRONAUT INPUT
039499,000091:                                                                                                  #        SPRTETIG        TIME OF IGNITION (OVERLAYS TIG)                         DP      B28     CS
039500,000092:                                                                                                  #        VPRED           DESIRED CHANGE IN VELOCITY AT TIG(PROGRM COMPUTED IF 0) DP      B7      METERS/CS
039501,000093:                                                                                                  #        GAMMAEI         DESIRED FLIGHT PATH ANGLE AT REENTRY (COMPUTED IF 0)    DP      B0      REVS + ABOVE HORIZ.
039502,000094:                                                                                                  #        OPTION2         PROPULSION SYSTEM OPTION                                SP      B14     1=SPS, 2=RCS
039503,000095: 
039504,000096:                                                                                                  #  OUTPUT
039505,000097:                                                                                                  #     CONIC OR PRECISION TRAJECTORY DISPLAY
039506,000098:                                                                                                  #        VPRED           VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE        DP      B7      METERS/CS
039507,000099:                                                                                                  #        T3TOT4          TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE              DP      B28     CS
039508,000100:                                                                                                  #        GAMMAEI         FLIGHT PATH ANGLE AT 400,00 FT. ENTRY ALTITUDE          DP      B0      REVS + ABOVE HORIZON
039509,000101:                                                                                                  #        DELVLVC         INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR  B7      METERS/CS
039510,000102:                                                                                                  #        LAT(SPL)        LATITUDE OF THE LANDING SITE                            DP      B0      REVS
039511,000103:                                                                                                  #        LNG(SPL)        LONGITUDE OF THE LANDING SITE                           DP      B0      REVS
039512,000104:                                                                                                  #     TARGETING COMPUTATION DISPLAY
039513,000105:                                                                                                  #        TIG             RECOMPUTED TIG BASED ON THRUST OPTION                   DP      B28     CS
039514,000106:                                                                                                  #        TTOGO           TIME FROM TIG                                           DP      B28     CS
039515,000107:                                                                                                  #        +MGA            POSITIVE MIDDLE GIMBAL ANGLE                            DP      B0      REVS -.02 IF REFSMFLG=0
039516,000108:                                                                                                  #     THRUST PROGRAM COMMUNICATION
039517,000109:                                                                                                  #        XDELVFLG        EXTERNAL DELTA V FLAG                                   STATE   FLAG    SET 0 FOR LAMBERT AIMPT
039518,000110:                                                                                                  #        NORMSW          LAMBERT AIMPT ROTATION SWITCH                           STATE   FLAG    SET 0 FOR NO ROTATION
039519,000111:                                                                                                  #        ECSTEER         CROSS PRODUCT STEERING CONSTANT                         SP      B2      SET 1
039520,000112:                                                                                                  #        RTARG           CONICALLY INTEGRATED REENTRY POSITION VECTOR            VECTOR  B29     METERS
039521,000113:                                                                                                  #        TPASS4          REENTRY TIME                                            DP      B28     CS
039522,000114: 
039523,000115: 36,2466           05412        P37                TC       PHASCHNG                              #  P37 IS NOT RESTARTABLE
039524,000116: 36,2467           00004                           OCT      4                                     
039525,000117: 
039526,000118: 36,2470           06006                           TC       INTPRET                               
039527,000119: 36,2471           66170                           AXT,1    SXA,1                                 
039528,000120: 36,2472           04000                           OCT      04000                                 
039529,000121: 36,2473           03424                                    ECSTEER                               
039530,000122: 36,2474           77745                           DLOAD                                          
039531,000123: 36,2475           15335                                    ZEROVECS                              
039532,000124: 36,2476           03767                           STORE    VPRED                                 
039533,000125: 36,2477           03771                           STORE    GAMMAEI                               
039534,000126: 36,2500           77776                           EXIT                                           
039535,000127: 36,2501           33246                           CAF      V6N33RTE                              #  INPUT TIG     STORED IN SPRTETIG
039536,000128: 36,2502           03235                           TCR      P370GOF                               #                OVERLAYED WITH TIG
039537,000129: 36,2503           12501                           TCF      -2                                    #  DISPLAY NEW DATA
039538,000130: 36,2504           33252                           CAF      V6N60RTE                              #  INPUT REENTRY ANGLE IN GAMMAEI
039539,000131: 36,2505           03211                           TCR      P37GFRB1                              #        AND DESIRED DELTA V IN RETDVD
039540,000132: 36,2506           12504                           TCF      -2                                    #  DISPLAY NEW DATA
039541,000133: 36,2507           06006        RTE299             TC       INTPRET                               
039542,000134: 36,2510           71331                           SSP      DLOAD                                 
039543,000135: 36,2511           00122                                    OVFIND                                
039544,000136: 36,2512           00000                                    0                                     
039545,000137: 36,2513           03767                                    VPRED                                 

Page 892

039547,000139: 36,2514           17632                           STODL    RTEDVD                                
039548,000140: 36,2515           03771                                    GAMMAEI                               
039549,000141: 36,2516           17634                           STODL    RTEGAM2D                              
039550,000142: 36,2517           33514                                    1RTEB13                               
039551,000143: 36,2520           17735                           STODL    CONICX1                               
039552,000144: 36,2521           33620                                    C4RTE                                 
039553,000145: 36,2522           37652                           STCALL   MAMAX1                                
039554,000146: 36,2523           64450                                    INVC100                               #  GET R(T1)/,V(T1)/,UR1/,UH/
039555,000147: 36,2524           71214                           CLEAR    DLOAD                                 
039556,000148: 36,2525           02662                                    SLOWFLG                               
039557,000149: 36,2526           03632                                    RTEDVD                                
039558,000150: 36,2527           51444                           BPL      ABS                                   
039559,000151: 36,2530           74540                                    RTE317                                
039560,000152: 36,2531           03632                           STORE    RTEDVD                                
039561,000153: 36,2532           45345                           DLOAD    DSU                                   
039562,000154: 36,2533           03646                                    R(T1)                                 
039563,000155: 36,2534           33622                                    K1RTE                                 
039564,000156: 36,2535           43040                           BMN      SET                                   
039565,000157: 36,2536           74540                                    RTE317                                
039566,000158: 36,2537           02462                                    SLOWFLG                               
039567,000159: 36,2540           77545        RTE317             DLOAD    EXIT                                  
039568,000160: 36,2541           03646                                    R(T1)                                 
039569,000161: 36,2542           07171                           TC       POLY                                  
039570,000162: 36,2543           00002                           DEC      2          B-14                       
039571,000163: 36,2544           02544 35436                     2DEC     181000434. B-31                       
039572,000164: 36,2546           14040 05066                     2DEC     1.50785145 B-2                        
039573,000165: 36,2550           44052 60030                     2DEC*    -6.49993057 E-9        B27*            
039574,000166: 36,2552           26415 25057                     2DEC*    9.76938926 E-18       B56*            
039575,000167: 36,2554           06006                           TC       INTPRET                               
039576,000168: 36,2555           77752                           SL1                                            
039577,000169: 36,2556           17654                           STODL    MAMAX2                                #  C0+C1*R+C2*R**2+C3*R**3=MAMAX2 B30
039578,000170: 36,2557           33544                                    M9RTEB28                              
039579,000171: 36,2560           17730                           STODL    NN1A                                  
039580,000172: 36,2561           33624                                    K2RTE                                 
039581,000173: 36,2562           17636        RTE320             STODL    RCON                                  #  RCON=K2
039582,000174: 36,2563           03634                                    RTEGAM2D                              
039583,000175: 36,2564           44254                           BZE      BDSU                                  
039584,000176: 36,2565           74574                                    RTE340                                #  GOTORTE340 IF REENTRY ANGLE NOT INPUT
039585,000177: 36,2566           33502                                    1RTEB2                                
039586,000178: 36,2567           71406                           PUSH     COS                                   #                                        PL02D
039587,000179: 36,2570           73525                           PDDL     SIN                                   
039588,000180: 36,2571           45465                           BDDV     STADR                                 #                                        PL00D
039589,000181: 36,2572           40051                           STCALL   X(T2)                                 #  X(T2)=COT(GAM2D)                      B0
039590,000182: 36,2573           74607                                    RTE360                                
039591,000183: 36,2574           45345        RTE340             DLOAD    DSU                                   
039592,000184: 36,2575           03646                                    R(T1)                                 

Page 893

039594,000186: 36,2576           33622                                    K1RTE                                 
039595,000187: 36,2577           71240                           BMN      DLOAD                                 
039596,000188: 36,2600           74604                                    RTE350                                
039597,000189: 36,2601           33630                                    K4RTE                                 
039598,000190: 36,2602           37726                           STCALL   X(T2)                                 #  X(T2)=K4
039599,000191: 36,2603           74607                                    RTE360                                
039600,000192: 36,2604           77745        RTE350             DLOAD                                          
039601,000193: 36,2605           33626                                    K3RTE                                 
039602,000194: 36,2606           03726                           STORE    X(T2)                                 #  X(T2)=K3
039603,000195: 36,2607           77624        RTE360             CALL                                           
039604,000196: 36,2610           65075                                    V2T100                                
039605,000197: 36,2611           52054                           BZE      GOTO                                  
039606,000198: 36,2612           74614                                    RTE367                                
039607,000199: 36,2613           74776                                    RTEALRM                               
039608,000200: 36,2614           77775        RTE367             VLOAD                                          
039609,000201: 36,2615           03640                                    R(T1)/                                
039610,000202: 36,2616           16657                           STODL    RVEC                                  
039611,000203: 36,2617           03636                                    RCON                                  
039612,000204: 36,2620           26760                           STOVL    RDESIRED                              
039613,000205: 36,2621           03700                                    V2(T1)/                               
039614,000206: 36,2622           36746                           STCALL   VVEC                                  
039615,000207: 36,2623           64277                                    TMRAD100                              
039616,000208: 36,2624           77615                           DAD                                            
039617,000209: 36,2625           03716                                    T1                                    
039618,000210: 36,2626           17736                           STODL    T2                                    
039619,000211: 36,2627           03634                                    RTEGAM2D                              
039620,000212: 36,2630           52054                           BZE      GOTO                                  
039621,000213: 36,2631           74633                                    RTE369                                
039622,000214: 36,2632           74655                                    RTE372                                
039623,000215: 36,2633           51575        RTE369             VLOAD    ABVAL                                 
039624,000216: 36,2634           03710                                    V(T2)/                                
039625,000217: 36,2635           77776                           EXIT                                           
039626,000218: 36,2636           07171                           TC       POLY                                  
039627,000219: 36,2637           00002                           DEC      2          B-14                       
039628,000220: 36,2640           00000 00000                     2DEC     0          B-28                       
039629,000221: 36,2642           47021 65002                     2DEC     -4.8760771 E-2        B4              
039630,000222: 36,2644           35610 07722                     2DEC     4.5419476  E-4        B11             
039631,000223: 36,2646           63772 63276                     2DEC     -1.4317675 E-6        B18             
039632,000224: 
039633,000225: 36,2650           06006                           TC       INTPRET                               
039634,000226: 36,2651           77615                           DAD                                            
039635,000227: 36,2652           01352                                    RTED1                                 
039636,000228: 36,2653           52052                           SL3      GOTO                                  #  X(T2),=D1+D2V2+D3V2**2+D4V2**3
039637,000229: 36,2654           74657                                    RTE373                                
039638,000230: 36,2655           77745        RTE372             DLOAD                                          #  X(T2),=X(T2)
039639,000231: 36,2656           03726                                    X(T2)                                 
039640,000232: 36,2657           41425        RTE373             DSU      PUSH                                  #  X(T2)ERR                              B0 PL02D

Page 894

039642,000234: 36,2660           03726                                    X(T2)                                 
039643,000235: 36,2661           53575                           VLOAD    UNIT                                  
039644,000236: 36,2662           03656                                    R(T2)/                                #                                        B58
039645,000237: 36,2663           36152                           STCALL   ALPHAV                                
039646,000238: 36,2664           26505                                    GETERAD                               
039647,000239: 36,2665           77615                           DAD                                            
039648,000240: 36,2666           33634                                    E3RTE                                 
039649,000241: 36,2667           45206                           PUSH     DSU                                   #  RCON,=(E1/1+E2BETA11)**.5)+E3         B29 PL04D
039650,000242: 36,2670           03636                                    RCON                                  
039651,000243: 36,2671           45246                           ABS      DSU                                   
039652,000244: 36,2672           33600                                    EPC2RTE                               
039653,000245: 36,2673           52040                           BMN      GOTO                                  
039654,000246: 36,2674           74676                                    RTE374                                
039655,000247: 36,2675           74703                                    RTE375                                
039656,000248: 36,2676           51545        RTE374             DLOAD    ABS                                   
039657,000249: 36,2677           00001                                    00D                                   
039658,000250: 36,2700           50025                           DSU      BMN                                   
039659,000251: 36,2701           33602                                    EPC3RTE                               
039660,000252: 36,2702           74753                                    P37E                                  
039661,000253: 36,2703           43345        RTE375             DLOAD    DAD                                   
039662,000254: 36,2704           03730                                    NN1A                                  
039663,000255: 36,2705           33522                                    1RTEB28                               
039664,000256: 36,2706           67240                           BMN      SLOAD                                 
039665,000257: 36,2707           74713                                    RTE380                                
039666,000258: 36,2710           33562                                    OCT605                                
039667,000259: 36,2711           77650                           GOTO                                           
039668,000260: 36,2712           74776                                    RTEALRM                               #  TOO MANY ITERATIONS
039669,000261: 36,2713           03730        RTE380             STORE    NN1A                                  
039670,000262: 36,2714           53025                           DSU      BZE                                   
039671,000263: 36,2715           33546                                    M8RTEB28                              
039672,000264: 36,2716           74734                                    RTE385                                
039673,000265: 36,2717           45345                           DLOAD    DSU                                   
039674,000266: 36,2720           00001                                    00D                                   
039675,000267: 36,2721           03666                                    DRCON                                 
039676,000268: 36,2722           65301                           NORM     PDDL                                  #  X(T2)ERR-X(T2)ERR,=Z1                 PL06D
039677,000269: 36,2723           00047                                    X1                                    
039678,000270: 36,2724           03670                                    RPRE'                                 
039679,000271: 36,2725           56225                           DSU      DDV                                   #  X(T2)PRI-X(T2)=Z2                     PL04D
039680,000272: 36,2726           03726                                    X(T2)                                 
039681,000273: 36,2727           53605                           DMP      SL*                                   #  DX(T2)=X(T2)ERR(Z2/Z1)
039682,000274: 36,2730           00001                                    00D                                   
039683,000275: 36,2731           20201                                    0,1                                   
039684,000276: 36,2732           77650                           GOTO                                           
039685,000277: 36,2733           74736                                    RTE390                                
039686,000278: 36,2734           77745        RTE385             DLOAD                                          #  DX(T2)=X(T2)ERR
039687,000279: 36,2735           00001                                    00D                                   
039688,000280: 36,2736           14021        RTE390             STODL    16D                                   #  DX(T2)                                PL02D
039689,000281: 36,2737           77626                           STADR                                          
039690,000282: 36,2740           60141                           STODL    RCON                                  #  RCON=RCON,
039691,000283: 36,2741           77600                           BOV                                            

Page 895

039693,000285: 36,2742           74607                                    RTE360                                
039694,000286: 36,2743           17666                           STODL    DRCON                                 #  X(T2)ERR,=X(T2)ERR
039695,000287: 36,2744           03726                                    X(T2)                                 
039696,000288: 36,2745           17670                           STODL    RPRE'                                 #  X(T2)PRI=X(T2)
039697,000289: 36,2746           00021                                    16D                                   
039698,000290: 36,2747           77615                           DAD                                            
039699,000291: 36,2750           03726                                    X(T2)                                 
039700,000292: 36,2751           37726                           STCALL   X(T2)                                 #  X(T2)=X(T2)+DX(T2)
039701,000293: 36,2752           74607                                    RTE360                                #  REITERATE
039702,000294: 36,2753           77624        P37E               CALL                                           #  DISPLAY CONIC SOLUTION
039703,000295: 36,2754           75002                                    RTEVN                                 
039704,000296: 36,2755           41345        RTE505             DLOAD    DMP                                   
039705,000297: 36,2756           03720                                    PCON                                  
039706,000298: 36,2757           03754                                    BETA1                                 
039707,000299: 36,2760           53021                           BDSU     BZE                                   
039708,000300: 36,2761           03636                                    RCON                                  
039709,000301: 36,2762           74770                                    RTE510                                
039710,000302: 36,2763           71240                           BMN      DLOAD                                 
039711,000303: 36,2764           74770                                    RTE510                                
039712,000304: 36,2765           33502                                    1RTEB2                                
039713,000305: 36,2766           77650                           GOTO                                           #  ENTRY NEAR APOGEE
039714,000306: 36,2767           74772                                    RTE515                                
039715,000307: 36,2770           57545        RTE510             DLOAD    DCOMP                                 #  ENTRY NEAR PERIGEE
039716,000308: 36,2771           33502                                    1RTEB2                                
039717,000309: 36,2772           37761        RTE515             STCALL   PHI2                                  
039718,000310: 36,2773           64541                                    PREC100                               #  PRECISION TRAJECTORY COMPUTATION
039719,000311: 36,2774           77654        RTE625             BZE                                            
039720,000312: 36,2775           75030                                    P37G                                  
039721,000313: 36,2776           77624        RTEALRM            CALL                                           
039722,000314: 36,2777           64262                                    P370ALRM                              
039723,000315: 36,3000           77776                           EXIT                                           
039724,000316: 36,3001           12466                           TCF      P37                                   #  RECYCLE AFTER ALARM DISPLAY
039725,000317: 
039726,000318:                                                                                                  #  RETURN TO EARTH DISPLAY SUBROUTINE
039727,000319: 
039728,000320: 36,3002           45020        RTEVN              STQ      CALL                                  
039729,000321: 36,3003           03763                                    VNSTORE                               
039730,000322: 36,3004           64316                                    RTEDISP                               #  DISPLAY PREPARATION
039731,000323: 36,3005           77776                           EXIT                                           
039732,000324: 36,3006           33250                           CAF      V6N61RTE                              #  LATITUDE,LONGITUDE,BLANK
039733,000325: 36,3007           03221                           TCR      P370GOFR                              #    IN LAT(SPL),LNG(SPL),-
039734,000326: 36,3010           35015                           CAF      FOUR                                  
039735,000327: 36,3011           03215                           TCR      37BLANK    +1                         
039736,000328: 36,3012           13017                           TCF      +5                                    
039737,000329: 36,3013           12466                           TCF      P37                                   #  RECYCLE
039738,000330: 36,3014           33251                           CAF      V6N39RTE                              #  T21 HRS,MIN,SEC IN T3TOT4
039739,000331: 36,3015           03235                           TCR      P370GOF                               
039740,000332: 36,3016           12466                           TCF      P37                                   #  RECYCLE
039741,000333: 36,3017           33252                           CAF      V6N60RTE                              #  DISPLAY BLANK,V(T2),FPA2
039742,000334: 36,3020           03211                           TCR      P37GFRB1                              #    IN -,VPRED,GAMMAEI

Page 896

039744,000336: 36,3021           12466                           TCF      P37                                   #  RECYCLE
039745,000337: 36,3022           33253                           CAF      V6N81RTE                              #  DISPLAY DELTA V (LV) IN DELVLVC
039746,000338: 36,3023           03235                           TCR      P370GOF                               
039747,000339: 36,3024           12466                           TCF      P37                                   #  RECYCLE
039748,000340: 36,3025           06006                           TCR      INTPRET                               
039749,000341: 36,3026           77650                           GOTO                                           
039750,000342: 36,3027           03763                                    VNSTORE                               
039751,000343: 
039752,000344:                                                                                                  #  PRECISION DISPLAY, TARGETING COMPUTATION AND RTE END PROCESSING
039753,000345: 
039754,000346: 36,3030           77624        P37G               CALL                                           
039755,000347: 36,3031           75002                                    RTEVN                                 
039756,000348: 36,3032           77776                           EXIT                                           
039757,000349: 36,3033           35023        P37N               CAF      SEVEN                                 
039758,000350: 36,3034           55131                           TS       OPTION1                               
039759,000351: 36,3035           35017                           CAF      ONE                                   
039760,000352: 36,3036           55132                           TS       OPTION2                               
039761,000353: 36,3037           33247                           CAF      V4N06RTE                              #  DISPLAY RCS OR SPS OPTION  SPS ASSUMED
039762,000354: 36,3040           03235                           TCR      P370GOF                               
039763,000355: 36,3041           13037                           TCF      -2                                    #  RECYCLE
039764,000356: 36,3042           06006                           TC       INTPRET                               #  PROCEED
039765,000357: 36,3043           67201                           SETPD    SLOAD                                 
039766,000358: 36,3044           00001                                    00D                                   
039767,000359: 36,3045           01133                                    OPTION2                               
039768,000360: 36,3046           53025                           DSU      BZE                                   
039769,000361: 36,3047           33514                                    1RTEB13                               
039770,000362: 36,3050           75057                                    P37Q                                  
039771,000363: 36,3051           60335                           SLOAD    NORM                                  #  SPS
039772,000364: 36,3052           00111                                    EMDOT                                 
039773,000365: 36,3053           00047                                    X1                                    
039774,000366: 36,3054           52125                           PDDL     GOTO                                  
039775,000367: 36,3055           33552                                    VCSPS                                 
039776,000368: 36,3056           75070                                    P37T                                  
039777,000369: 36,3057           43145        P37Q               DLOAD    BON                                   #  RCS
039778,000370: 36,3060           33556                                    MDOTRCS                               
039779,000371: 36,3061           00700                                    NJETSFLG                              
039780,000372: 36,3062           75064                                    P37R                                  
039781,000373: 36,3063           77752                           SL1                                            
039782,000374: 36,3064           77752        P37R               SL1                                            
039783,000375: 36,3065           65301                           NORM     PDDL                                  
039784,000376: 36,3066           00047                                    X1                                    
039785,000377: 36,3067           33554                                    VCRCS                                 
039786,000378: 36,3070           56325        P37T               PDDL     DDV                                   #  DV/VC                 B7 -B5 = B2     PL02D
039787,000379: 36,3071           03706                                    DV                                    
039788,000380: 36,3072           77776                           EXIT                                           
039789,000381: 36,3073           07171                           TC       POLY                                  
039790,000382: 36,3074           00001                           DEC      1          B-14                       
039791,000383: 36,3075           00001 05070                     2DEC     5.66240507 E-4        B-3             
039792,000384: 36,3077           17527 36700                     2DEC     9.79487897 E-1        B-1             

Page 897

039794,000386: 36,3101           47114 70670                     2DEC     -.388281955 B1                         
039795,000387: 36,3103           06006                           TC       INTPRET                               
039796,000388: 36,3104           67206                           PUSH     SLOAD                                 #  (1-E)**(-DV/VC)=A             B3      PL04D
039797,000389: 36,3105           03076                                    WEIGHT/G                              
039798,000390: 36,3106           56205                           DMP      DDV                                   #  DTB=(M0/MDOT)A        B16+B3-B3=B16   PL00D
039799,000391: 36,3107           41257                           SL*      DMP                                   
039800,000392: 36,3110           20165                                    0          -12D,1                     
039801,000393: 36,3111           33560                                    CSUBT                                 
039802,000394: 36,3112           77621                           BDSU                                           
039803,000395: 36,3113           03716                                    T1                                    
039804,000396: 36,3114           03413                           STORE    TIG                                   #  TIG=T1-CT*DTB                 B28
039805,000397: 36,3115           77776                           EXIT                                           
039806,000398: 36,3116           33246                           CAF      V6N33RTE                              #  DISPLAY BIASED TIG
039807,000399: 36,3117           03235                           TCR      P370GOF                               
039808,000400: 36,3120           13116                           TCF      -2                                    
039809,000401: 36,3121           35021                           CAF      ZERO                                  
039810,000402: 36,3122           55125                           TS       VHFCNT                                
039811,000403: 36,3123           55126                           TS       TRKMKCNT                              
039812,000404: 36,3124           06006                           TC       INTPRET                               
039813,000405: 36,3125           77624                           CALL                                           #  CONICALLY INTEGRATE FROM R1,V1 OVER T12
039814,000406: 36,3126           63700                                    RTENCK1                               
039815,000407: 36,3127           53575                           VLOAD    UNIT                                  #                                        PL00D
039816,000408: 36,3130           03656                                    R(T2)/                                
039817,000409: 36,3131           74315                           PDVL     VXSC                                  #  UR2                           B1      PL06D
039818,000410: 36,3132           03740                                    UR1/                                  
039819,000411: 36,3133           33564                                    MCOS7.5                               
039820,000412: 36,3134           74315                           PDVL     VXSC                                  #  -UR1(COS7.5)                  B1      PL12D
039821,000413: 36,3135           03746                                    UH/                                   
039822,000414: 36,3136           33566                                    MSIN7.5                               
039823,000415: 36,3137           50255                           VAD      DOT                                   #  K/=-UR1(COS7.5)-UH(SIN7.5)    B2      PL00D
039824,000416: 36,3140           50015                           DAD      BMN                                   
039825,000417: 36,3141           33570                                    MCOS22.5                              
039826,000418: 36,3142           75167                                    P37W                                  
039827,000419: 36,3143           50375                           VLOAD    DOT                                   #  K/ . UR2 GR COS22.5
039828,000420: 36,3144           03746                                    UH/                                   
039829,000421: 36,3145           03656                                    R(T2)/                                
039830,000422: 36,3146           71240                           BMN      DLOAD                                 
039831,000423: 36,3147           75153                                    P37U                                  
039832,000424: 36,3150           33572                                    THETA165                              
039833,000425: 36,3151           52006                           PUSH     GOTO                                  
039834,000426: 36,3152           75155                                    P37V                                  
039835,000427: 36,3153           41545        P37U               DLOAD    PUSH                                  
039836,000428: 36,3154           33574                                    THETA210                              
039837,000429: 36,3155           77756        P37V               SIN                                            
039838,000430: 36,3156           16732                           STODL    SNTH                                  
039839,000431: 36,3157           43146                           COS      CLEAR                                 
039840,000432: 36,3160           03666                                    RVSW                                  
039841,000433: 36,3161           26734                           STOVL    CSTH                                  
039842,000434: 36,3162           03640                                    R(T1)/                                

Page 898

039844,000436: 36,3163           26657                           STOVL    RVEC                                  
039845,000437: 36,3164           03700                                    V2(T1)/                               
039846,000438: 36,3165           36746                           STCALL   VVEC                                  
039847,000439: 36,3166           24744                                    TIMETHET                              
039848,000440: 36,3167           43014        P37W               CLEAR    CLEAR                                 
039849,000441: 36,3170           01267                                    XDELVFLG                              
039850,000442: 36,3171           03665                                    NORMSW                                
039851,000443: 36,3172           77214                           SET      VLOAD                                 
039852,000444: 36,3173           01071                                    FINALFLG                              
039853,000445: 36,3174           77626                           STADR                                          
039854,000446: 36,3175           60362                           STODL    RTARG                                 
039855,000447: 36,3176           00037                                    T                                     
039856,000448: 36,3177           77615                           DAD                                            
039857,000449: 36,3200           03716                                    T1                                    
039858,000450: 36,3201           27656                           STOVL    TPASS4                                
039859,000451: 36,3202           03700                                    V2(T1)/                               
039860,000452: 36,3203           77651                           VSU                                            
039861,000453: 36,3204           03672                                    V(T1)/                                
039862,000454: 36,3205           37646                           STCALL   DELVSIN                               
039863,000455: 36,3206           73002                                    VN1645                                
039864,000456: 36,3207           77650                           GOTO                                           
039865,000457: 36,3210           75167                                    P37W                                  
039866,000458: 
039867,000459:                                                                                                  #  SUBROUTINE TO GO TO GOFLASHR AND BLANK R1
039868,000460: 
039869,000461: 36,3211           00006        P37GFRB1           EXTEND                                         
039870,000462: 36,3212           23762                           QXCH     SPRTEX                                
039871,000463: 36,3213           03221                           TCR      P370GOFR                              
039872,000464: 36,3214           35017        37BLANK            CAF      ONE                                   
039873,000465: 36,3215           05526                           TCR      BLANKET                               
039874,000466: 36,3216           15217                           TCF      ENDOFJOB                              
039875,000467: 36,3217           01762                           TC       SPRTEX                                #  RECYCLE
039876,000468: 36,3220           13244                           TCF      P37PROC                               #  PROCEED
039877,000469: 
039878,000470:                                                                                                  #  SUBROUTINE TO GO TO GOFLASHR
039879,000471: 
039880,000472: 36,3221           00006        P370GOFR           EXTEND                                         
039881,000473: 36,3222           23733                           QXCH     RTENCKEX                              
039882,000474: 36,3223           04662                           TCR      BANKCALL                              
039883,000475: 36,3224           21057                           CADR     GOFLASHR                              
039884,000476: 36,3225           14106                           TCF      GOTOP00H                              #  TERMINATE
039885,000477: 36,3226           13231                           TCF      +3                                    
039886,000478: 36,3227           13233                           TCF      +4                                    
039887,000479: 36,3230           01733                           TC       RTENCKEX                              #  IMMEDIATE RETURN
039888,000480: 36,3231           51733                           INDEX    RTENCKEX                              #  PROCEED
039889,000481: 36,3232           10004                           TCF      0          +4                         
039890,000482: 36,3233           51733                           INDEX    RTENCKEX                              #  RECYCLE
039891,000483: 36,3234           10003                           TCF      0          +3                         
039892,000484: 
039893,000485:                                                                                                  #  SUBROUTINE TO GO TO GOFLASH
039894,000486: 

Page 899

039896,000488: 36,3235           00006        P370GOF            EXTEND                                         
039897,000489: 36,3236           23762                           QXCH     SPRTEX                                
039898,000490: 36,3237           04662                           TCR      BANKCALL                              
039899,000491: 36,3240           20720                           CADR     GOFLASH                               
039900,000492: 36,3241           14106                           TCF      GOTOP00H                              
039901,000493: 36,3242           13244                           TCF      +2                                    
039902,000494: 36,3243           01762                           TC       SPRTEX                                
039903,000495: 36,3244           51762        P37PROC            INDEX    SPRTEX                                
039904,000496: 36,3245           10001                           TCF      0          +1                         
039905,000497: 36,3246           01441        V6N33RTE           VN       0633                                  
039906,000498: 36,3247           01006        V4N06RTE           VN       0406                                  
039907,000499: 36,3250           01475        V6N61RTE           VN       0661                                  
039908,000500: 36,3251           01447        V6N39RTE           VN       0639                                  
039909,000501: 36,3252           01474        V6N60RTE           VN       0660                                  
039910,000502: 36,3253           01521        V6N81RTE           VN       0681                                  
039911,000503: 32,2262                                           BANK     32                                    
039912,000504: 32,2000                                           SETLOC   RTE                                   
039913,000505: 32,2000                                           BANK                                           
039914,000506: 32,2262                                           COUNT    32/RTE                                
039915,000507: 

Page 900

039917,000509:                                                                                                  #  ALARM DISPLAY SUBROUTINE
039918,000510: 
039919,000511: 32,2262           77420        P370ALRM           STQ      EXIT                                  
039920,000512: 32,2263           03762                                    SPRTEX                                
039921,000513: 32,2264           30154                           CA       MPAC                                  
039922,000514: 32,2265           05764                           TC       VARALARM                              
039923,000515: 32,2266           32276                           CAF      V5N09RTE                              
039924,000516: 32,2267           04662                           TC       BANKCALL                              
039925,000517: 32,2270           20720                           CADR     GOFLASH                               
039926,000518: 32,2271           14106                           TCF      GOTOP00H                              
039927,000519: 32,2272           12266                           TCF      -4                                    
039928,000520: 32,2273           06006                           TC       INTPRET                               
039929,000521: 32,2274           77650                           GOTO                                           
039930,000522: 32,2275           03762                                    SPRTEX                                
039931,000523: 32,2276           01211        V5N09RTE           VN       0509                                  
039932,000524: 

Page 901

039934,000526:                                                                                                  #  TIME RADIUS CALLING SUBROUTINE
039935,000527: 
039936,000528:                                                                                                  #  INPUT
039937,000529:                                                                                                  #        RVEC            INITIAL POSITION VECTOR                                 VECTOR  B29     METERS
039938,000530:                                                                                                  #        VVEC            INITIAL VELOCITY VECTOR                                 VECTOR  B7      METERS/CS
039939,000531:                                                                                                  #        RDESIRED        FINAL RADIUS FOR WHICH TRANSFER TIME IS TO BE COMPUTED  DP      B29     METERS
039940,000532:                                                                                                  #        CONICX1         X1 SETTING FOR CONIC SUBROUTINES  -2=EARTH              SP      B14
039941,000533: 
039942,000534:                                                                                                  #  OUTPUT
039943,000535:                                                                                                  #        R(T2)/          FINAL POSITION VECTOR                                   VECTOR  B29     METERS
039944,000536:                                                                                                  #        V(T2)/          FINAL VELOCITY VECTOR                                   VECTOR  B7      METERS/CS
039945,000537:                                                                                                  #        T12             TRANSFER TIME TO FINAL RADIUS                           DP      B28     CS
039946,000538: 
039947,000539: 32,2277           43020        TMRAD100           STQ      CLEAR                                 
039948,000540: 32,2300           03733                                    RTENCKEX                              
039949,000541: 32,2301           03666                                    RVSW                                  
039950,000542: 32,2302           67164                           AXC,2    SXA,2                                 
039951,000543: 32,2303           20000                           OCT      20000                                 
039952,000544: 32,2304           02756                                    SGNRDOT                               
039953,000545: 32,2305           45140                           LXC,1    CALL                                  
039954,000546: 32,2306           03734                                    CONICX1                               
039955,000547: 32,2307           25556                                    TIMERAD                               
039956,000548: 32,2310           27710                           STOVL    V(T2)/                                #                                        PL00D
039957,000549: 32,2311           77626                           STADR                                          
039958,000550: 32,2312           60121                           STODL    R(T2)/                                
039959,000551: 32,2313           00037                                    T                                     
039960,000552: 32,2314           37724                           STCALL   T12                                   
039961,000553: 32,2315           03733                                    RTENCKEX                              
039962,000554: 

Page 902

039964,000556:                                                                                                  #  DISPLAY CALCULATION SUBROUTINE
039965,000557: 
039966,000558:                                                                                                  #  DESCRIPTION
039967,000559:                                                                                                  #        OUTPUT FOR DISPLAY IS CONVERTED TO PROPER UNITS AND PLACED IN OUTPUT STORAGE REGISTERS.  LANDING SITE
039968,000560:                                                                                                  #        COMPUTATION FOR DETERMINING LANDING SITE LATITUDE AND LONGITUDE IS INCLUDED IN THE ROUTINE.
039969,000561: 
039970,000562:                                                                                                  #  CALLING SEQUENCE
039971,000563:                                                                                                  #        L       CALL
039972,000564:                                                                                                  #        L+1             RTEDISP
039973,000565: 
039974,000566:                                                                                                  #  SUBROUTINES CALLED
039975,000567:                                                                                                  #        TMRAD100
039976,000568:                                                                                                  #        AUGEKUGL
039977,000569:                                                                                                  #        LAT-LONG
039978,000570: 
039979,000571:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
039980,000572:                                                                                                  #     PUSHLIST
039981,000573:                                                                                                  #        NONE
039982,000574:                                                                                                  #     MPAC
039983,000575:                                                                                                  #        NONE
039984,000576:                                                                                                  #     OTHER
039985,000577:                                                                                                  #        R(T2)/          FINAL POSITION VECTOR                                   VECTOR  B29     METERS
039986,000578:                                                                                                  #        V(T2)/          FINAL VELOCITY VECTOR                                   VECTOR  B7      METERS/CS
039987,000579:                                                                                                  #        T2              FINAL TIME                                              DP      B28     CS
039988,000580:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7      METERS/CS
039989,000581:                                                                                                  #        V(T1)/          INITIAL VELOCITY VECTOR                                 VECTOR  B7
039990,000582:                                                                                                  #        UR1/            UNIT INITIAL VECTOR                                     VECTOR  B1
039991,000583:                                                                                                  #        UH/             UNIT HORIZONTAL VECTOR                                  VECTOR  B1
039992,000584: 
039993,000585:                                                                                                  #  OUTPUT
039994,000586:                                                                                                  #        VPRED           VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE        DP      B7      METERS/CS
039995,000587:                                                                                                  #        T3TOT4          TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE              DP      B28     CS
039996,000588:                                                                                                  #        GAMMAEI         FLIGHT PATH ANGLE AT 400,000 FT. ENTRY ALTITUDE         DP      B0      REVS + ABOVE HORIZ
039997,000589:                                                                                                  #        DELVLVC         INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR  B7      METERS/CS
039998,000590:                                                                                                  #        LAT(SPL)        LATITUDE OF THE LANDING SITE                            DP      B0      REVS
039999,000591:                                                                                                  #        LNG(SPL)        LONGITUDE OF THE LANDING SITE                           DP      B0      REVS
040000,000592: 
040001,000593: 32,2316           77220        RTEDISP            STQ      VLOAD                                 #  DISPLAY
040002,000594: 32,2317           03762                                    SPRTEX                                
040003,000595: 32,2320           03710                                    V(T2)/                                
040004,000596: 32,2321           65256                           UNIT     PDDL                                  
040005,000597: 32,2322           00045                                    36D                                   
040006,000598: 32,2323           17767                           STODL    VPRED                                 #  V(T2)
040007,000599: 32,2324           03736                                    T2                                    
040008,000600: 32,2325           77625                           DSU                                            
040009,000601: 32,2326           03413                                    SPRTETIG                              
040010,000602: 32,2327           26641                           STOVL    T3TOT4                                #  T21
040011,000603: 32,2330           03656                                    R(T2)/                                
040012,000604: 32,2331           50256                           UNIT     DOT                                   
040013,000605: 32,2332           77752                           SL1                                            
040014,000606: 

Page 903

040016,000608: 32,2333           44326                           ARCCOS   BDSU                                  
040017,000609: 32,2334           33502                                    1RTEB2                                
040018,000610: 32,2335           27771                           STOVL    GAMMAEI                               #  FLIGHT PATH ANGLE T2
040019,000611: 32,2336           03700                                    V2(T1)/                               
040020,000612: 32,2337           41451                           VSU      PUSH                                  
040021,000613: 32,2340           03672                                    V(T1)/                                
040022,000614: 32,2341           57441                           DOT      DCOMP                                 
040023,000615: 32,2342           03740                                    UR1/                                  
040024,000616: 32,2343           41515                           PDVL     PUSH                                  
040025,000617: 32,2344           63345                           DLOAD    PDVL                                  
040026,000618: 32,2345           33524                                    ZERORTE                               
040027,000619: 32,2346           55441                           DOT      VDEF                                  
040028,000620: 32,2347           03746                                    UH/                                   
040029,000621: 32,2350           77772                           VSL1                                           
040030,000622: 32,2351           17405                           STODL    DELVLVC                               
040031,000623: 32,2352           03405                                    DELVLVC                               
040032,000624: 32,2353           57414                           BOFF     DCOMP                                 
040033,000625: 32,2354           02741                                    RETROFLG                              
040034,000626: 32,2355           64357                                    RTD18                                 
040035,000627: 32,2356           03405                           STORE    DELVLVC                               #  NEGATE X COMPONENT, RETROGRADE
040036,000628: 32,2357           51575        RTD18              VLOAD    ABVAL                                 
040037,000629: 32,2360           03405                                    DELVLVC                               
040038,000630: 32,2361           27773                           STOVL    VGDISP                                
040039,000631: 32,2362           03656                                    R(T2)/                                
040040,000632: 32,2363           02657                           STORE    RVEC                                  #  ***** LANDING SITE COMPUTATION *****
040041,000633: 32,2364           45246                           ABVAL    DSU                                   
040042,000634: 32,2365           33550                                    30480RTE                              
040043,000635: 32,2366           26760                           STOVL    RDESIRED                              
040044,000636: 32,2367           03710                                    V(T2)/                                
040045,000637: 32,2370           36746                           STCALL   VVEC                                  
040046,000638: 32,2371           64277                                    TMRAD100                              #  R3,V3,T23 FROM TIMERAD
040047,000639: 32,2372           53575                           VLOAD    UNIT                                  
040048,000640: 32,2373           03656                                    R(T2)/                                
040049,000641: 32,2374           53515                           PDVL     UNIT                                  #  UR3                                   PL06D
040050,000642: 32,2375           03710                                    V(T2)/                                
040051,000643: 32,2376           72441                           DOT      SL1                                   #  GAMMAE=ARCSIN(UR3 . UV3)              PL00D
040052,000644: 32,2377           65336                           ARCSIN   PDDL                                  #  V(T3)                                 PL02D
040053,000645: 32,2400           00045                                    36D                                   
040054,000646: 32,2401           51525                           PDDL     ABS                                   
040055,000647: 32,2402           45006                           PUSH     CALL                                  #  /GAMMAE/                              PL04D
040056,000648: 32,2403           64075                                    AUGEKUGL                              #  PHIE                                  PL06D
040057,000649: 32,2404           43215                           DAD      DAD                                   
040058,000650: 32,2405           03724                                    T12                                   #  T23
040059,000651: 32,2406           03736                                    T2                                    
040060,000652: 32,2407           00003                           STORE    02D                                   #  T(LS)=T2&T23&TE
040061,000653: 32,2410           53135                           SLOAD    BZE                                   
040062,000654: 32,2411           03377                                    P37RANGE                              
040063,000655: 32,2412           64414                                    RTD22                                 
040064,000656: 32,2413           00005                           STORE    04D                                   #  OVERRIDE RANGE (PCR 261)
040065,000657: 32,2414           73545        RTD22              DLOAD    SIN                                   
040066,000658: 

Page 904

040068,000660: 32,2415           00005                                    04D                                   
040069,000661: 32,2416           17403                           STODL    LNG(SPL)                              #  LNG(SPL)=SIN(PHIE)                    PL04D
040070,000662: 32,2417           77746                           COS                                            
040071,000663: 32,2420           03401                           STORE    LAT(SPL)                              #  LAT(SPL)=COS(PHIE)
040072,000664: 32,2421           53575                           VLOAD    UNIT                                  
040073,000665: 32,2422           03656                                    R(T2)/                                
040074,000666: 32,2423           41406                           PUSH     PUSH                                  
040075,000667: 32,2424           53515                           PDVL     UNIT                                  #                                        PL22D
040076,000668: 32,2425           03710                                    V(T2)/                                
040077,000669: 32,2426           47315                           PDVL     VXV                                   
040078,000670: 32,2427           53435                           VXV      UNIT                                  #  UH3=UNIT(UR3 X UV3 X UR3)             PL10D
040079,000671: 32,2430           63361                           VXSC     PDVL                                  
040080,000672: 32,2431           03403                                    LNG(SPL)                              
040081,000673: 32,2432           53361                           VXSC     VAD                                   #                                        PL04D
040082,000674: 32,2433           03401                                    LAT(SPL)                              
040083,000675: 32,2434           43014                           CLEAR    CLEAR                                 #  T(LS) IN MPAC
040084,000676: 32,2435           00662                                    ERADFLAG                              
040085,000677: 32,2436           01663                                    LUNAFLAG                              
040086,000678: 32,2437           16152                           STODL    ALPHAV                                #  ALPHAV=UR3(COSPHIE)+UH3(SINPHIE)      PL02D
040087,000679: 32,2440           77624                           CALL                                           
040088,000680: 32,2441           26370                                    LAT-LONG                              
040089,000681: 32,2442           77745                           DLOAD                                          
040090,000682: 32,2443           01104                                    LAT                                   
040091,000683: 32,2444           17401                           STODL    LAT(SPL)                              #  LATITUDE LANDING SITE  *****
040092,000684: 32,2445           01106                                    LONG                                  
040093,000685: 32,2446           37403                           STCALL   LNG(SPL)                              #  LONGITUDE LANDING SITE *****
040094,000686: 32,2447           03762                                    SPRTEX                                
040095,000687: 32,2450                                           COUNT*   $$/RTE                                
040096,000688: 

Page 905

040098,000690:                                                                                                  #  INITIAL VECTOR SUBROUTINE
040099,000691: 
040100,000692:                                                                                                  #  DESCRIPTION
040101,000693:                                                                                                  #        A PRECISION INTEGRATION OF THE STATE VECTOR TO THE TIME OF IGNITION IS PERFORMED. PRECOMPUTATIONS OCCUR.
040102,000694: 
040103,000695:                                                                                                  #  CALLING SEQUENCE
040104,000696:                                                                                                  #        L       CALL
040105,000697:                                                                                                  #        L+1             INVC100
040106,000698: 
040107,000699:                                                                                                  #  NORMAL EXIT MODE
040108,000700:                                                                                                  #        AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040109,000701: 
040110,000702:                                                                                                  #  ALARM EXIT MODE
040111,000703:                                                                                                  #        AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 612 FOR STATE VECTOR IN MOONS SPHERE OF INFLUENCE
040112,000704: 
040113,000705:                                                                                                  #  SUBROUTINES CALLED
040114,000706:                                                                                                  #        CSMPREC
040115,000707: 
040116,000708:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
040117,000709:                                                                                                  #     PUSHLIST
040118,000710:                                                                                                  #        NONE
040119,000711:                                                                                                  #     MPAC
040120,000712:                                                                                                  #        NONE
040121,000713:                                                                                                  #     OTHER
040122,000714:                                                                                                  #        SPRTETIG        TIME OF IGNITION                                        DP      B28     CS
040123,000715:                                                                                                  #        CSM STATE VECTOR
040124,000716: 
040125,000717:                                                                                                  #  OUTPUT
040126,000718:                                                                                                  #        R(T1)/          INITIAL POSITION VECTOR AT TIG                          VECTOR  B29     METERS
040127,000719:                                                                                                  #        V(T1)/          INITIAL VELOCITY VECTOR AT TIG                          VECTOR  B7      METERS/CS
040128,000720:                                                                                                  #        T1              INITIAL VECTOR TIME (TIG)                               DP      B28     CS
040129,000721:                                                                                                  #        UR1/            UNIT INITIAL VECTOR                                     VECTOR  B1
040130,000722:                                                                                                  #        UH/             UNIT HORIZONTAL VECTOR                                  VECTOR  B1
040131,000723:                                                                                                  #        CFPA            COSINE OF INITIAL FLIGHT PATH ANGLE                     DP      B1
040132,000724: 
040133,000725: 32,2450           71220        INVC100            STQ      DLOAD                                 
040134,000726: 32,2451           03762                                    SPRTEX                                
040135,000727: 32,2452           03413                                    SPRTETIG                              
040136,000728: 32,2453           34041                           STCALL   TDEC1                                 
040137,000729: 32,2454           27071                                    CSMPREC                               #  PRECISION INTEGRATION  R0,V0 TO R1,V1
040138,000730: 32,2455           67175                           VLOAD    SXA,2                                 
040139,000731: 32,2456           00001                                    RATT                                  
040140,000732: 32,2457           03755                                    P(T1)                                 
040141,000733: 32,2460           27640                           STOVL    R(T1)/                                
040142,000734: 32,2461           00007                                    VATT                                  
040143,000735: 32,2462           17672                           STODL    V(T1)/                                
040144,000736: 32,2463           00015                                    TAT                                   
040145,000737: 32,2464           03716                           STORE    T1                                    
040146,000738: 32,2465           53135                           SLOAD    BZE                                   
040147,000739: 32,2466           03756                                    P(T1)                                 

Page 906

040149,000741: 32,2467           64473                                    INVC109                               
040150,000742: 32,2470           52135        INVC107            SLOAD    GOTO                                  
040151,000743: 32,2471           33563                                    OCT612                                
040152,000744: 32,2472           74776                                    RTEALRM                               #  R1,V1 NOT IN PROPER SPHERE OF INFLUENCE
040153,000745: 32,2473           53575        INVC109            VLOAD    UNIT                                  
040154,000746: 32,2474           03640                                    R(T1)/                                
040155,000747: 32,2475           17740                           STODL    UR1/                                  #  UR1/                                  B1
040156,000748: 32,2476           00045                                    36D                                   
040157,000749: 32,2477           27646                           STOVL    R(T1)                                 #  R(T1)                                 B29
040158,000750: 32,2500           03672                                    V(T1)/                                
040159,000751: 32,2501           77656                           UNIT                                           
040160,000752: 32,2502           03746                           STORE    UV1/                                  
040161,000753: 32,2503           72441                           DOT      SL1                                   
040162,000754: 32,2504           03740                                    UR1/                                  
040163,000755: 32,2505           03757                           STORE    CFPA                                  #  CFPA                                  B1
040164,000756: 32,2506           45246                           ABS      DSU                                   
040165,000757: 32,2507           33576                                    EPC1RTE                               
040166,000758: 32,2510           71240                           BMN      DLOAD                                 
040167,000759: 32,2511           64520                                    INVC115                               #  NOT NEAR RECTILINEAR
040168,000760: 32,2512           33502                                    1RTEB2                                
040169,000761: 32,2513           41525                           PDDL     PUSH                                  
040170,000762: 32,2514           33524                                    ZERORTE                               
040171,000763: 32,2515           41466                           VDEF     PUSH                                  #  N/ = (0,0,1)
040172,000764: 32,2516           77650                           GOTO                                           
040173,000765: 32,2517           64524                                    INVC120                               
040174,000766: 32,2520           47375        INVC115            VLOAD    VXV                                   
040175,000767: 32,2521           03740                                    UR1/                                  
040176,000768: 32,2522           03746                                    UV1/                                  
040177,000769: 32,2523           77606                           PUSH                                           #  N/ = UR X UV                          B2
040178,000770: 32,2524           71214        INVC120            CLEAR    DLOAD                                 
040179,000771: 32,2525           02661                                    RETROFLG                              
040180,000772: 32,2526           51006                           PUSH     BPL                                   
040181,000773: 32,2527           64533                                    INVC125                               
040182,000774: 32,2530           57575                           VLOAD    VCOMP                                 #  RETROGRADE ORBIT
040183,000775: 32,2531           43006                           PUSH     SET                                   
040184,000776: 32,2532           02461                                    RETROFLG                              
040185,000777: 32,2533           77775        INVC125            VLOAD                                          
040186,000778: 32,2534           53435                           VXV      UNIT                                  
040187,000779: 32,2535           03740                                    UR1/                                  
040188,000780: 32,2536           03746                           STORE    UH/                                   #  UH/                                   B1
040189,000781: 32,2537           77650                           GOTO                                           
040190,000782: 32,2540           03762                                    SPRTEX                                
040191,000783: 

Page 907

040193,000785:                                                                                                  #  PRECISION TRAJECTORY COMPUTATION SUBROUTINE
040194,000786: 
040195,000787:                                                                                                  #  DESCRIPTION
040196,000788:                                                                                                  #        A NUMERICALLY INTEGRATED TRAJECTORY IS GENERATED WHICH FOR THE RETURN TO EARTH PROBLEM SATISFIES THE REENTRY
040197,000789:                                                                                                  #        CONSTRAINTS (RCON AND X(T2)) ACHIEVED BY THE INITIAL CONIC TRAJECTORY AND MEETS THE DVD REQUIREMENT AS CLOSELY
040198,000790:                                                                                                  #        AS POSSIBLE.
040199,000791: 
040200,000792:                                                                                                  #  CALLING SEQUENCE
040201,000793:                                                                                                  #        L       CALL
040202,000794:                                                                                                  #        L+1             PREC100
040203,000795: 
040204,000796:                                                                                                  #  NORMAL EXIT MODE
040205,000797:                                                                                                  #        AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040206,000798: 
040207,000799:                                                                                                  #  ALARM EXIT MODE
040208,000800:                                                                                                  #        AT L+2 OF CALLING SEQUENCE WITH MPAC =
040209,000801:                                                                                                  #                OCTAL 605       FOR EXCESS ITERATIONS
040210,000802:                                                                                                  #                OCTAL 613       FOR REENTRY ANGLE OUT OF LIMITS
040211,000803: 
040212,000804:                                                                                                  #  SUBROUTINES CALLED
040213,000805:                                                                                                  #        INTSTALL
040214,000806:                                                                                                  #        RTENCK2
040215,000807:                                                                                                  #        RTENCK3
040216,000808:                                                                                                  #        TIMERAD
040217,000809:                                                                                                  #        PARAM
040218,000810:                                                                                                  #        V2T100
040219,000811: 
040220,000812:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
040221,000813:                                                                                                  #     PUSHLIST
040222,000814:                                                                                                  #        NONE
040223,000815:                                                                                                  #     MPAC
040224,000816:                                                                                                  #        NONE
040225,000817:                                                                                                  #     OTHER
040226,000818:                                                                                                  #        R(T1)/          INITIAL POSITION VECTOR                                 VECTOR  B29/B27 METERS
040227,000819:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7/B5   METERS/CS
040228,000820:                                                                                                  #        V(T1)/          INITIAL VELOCITY VECTOR                                 VECTOR  B7/B5   METERS/CS
040229,000821:                                                                                                  #        T1              INITIAL VECTOR TIME                                     DP      B28     CS
040230,000822:                                                                                                  #        T12             INITIAL TO FINAL POSITION TIME                          DP      B28     CS
040231,000823:                                                                                                  #        RCON            CONIC FINAL RADIUS                                      DP      B29/B27 METERS
040232,000824:                                                                                                  #        R(T1)           MAGNITUDE OF INITIAL POSITION VECTOR                    DP      B29/B27 METERS
040233,000825:                                                                                                  #        X(T2)           COTANGENT OF FINAL FLIGHT PATH ANGLE                    DP      B0
040234,000826:                                                                                                  #        X(T1)           COTANGENT OF INITIAL FLIGHT PATH ANGLE                  DP      B5
040235,000827:                                                                                                  #        RTEDVD          DELTA VELOCITY DESIRED                                  DP      B7/B5   METERS/CS
040236,000828:                                                                                                  #        MAMAX1          MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR      DP      B30/B28 METERS
040237,000829:                                                                                                  #        MAMAX2          MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR      DP      B30/B28 METERS
040238,000830:                                                                                                  #        UR1/            UNIT INITIAL VECTOR                                     VECTOR  B1
040239,000831:                                                                                                  #        UH/             UNIT HORIZONTAL VECTOR                                  VECTOR  B1
040240,000832:                                                                                                  #        BETA1           1+X(T2)**2                                              DP      B1
040241,000833:                                                                                                  #        PHI2            PERIGEE OR APOGEE INDICATOR                             DP      B2      -1 PERIGEE, +1 APOGEE
040242,000834: 

Page 908

040244,000836: 
040245,000837:                                                                                                  #  OUTPUT
040246,000838:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7      METERS/CS
040247,000839:                                                                                                  #        R(T2)/          FINAL POSITION VECTOR                                   VECTOR  B29     METERS
040248,000840:                                                                                                  #        V(T2)/          FINAL VELOCITY VECTOR                                   VECTOR  B7      METERS/CS
040249,000841:                                                                                                  #        T2              FINAL TIME                                              DP      B28     CENTISECONDS
040250,000842: 
040251,000843:                                                                                                  #  DEBRIS
040252,000844:                                                                                                  #        RD              FINAL R DESIRED                                         DP      B29/B27 METERS
040253,000845:                                                                                                  #        R/APRE          R/A                                                     DP      B6
040254,000846:                                                                                                  #        P/RPRE          P/R                                                     DP      B4
040255,000847:                                                                                                  #        RPRE            MAGNITUDE OF R(T2)/                                     DP      B29/B27 METERS
040256,000848:                                                                                                  #        X(T2)PRE        COTANGENT OF GAMMA2                                     DP      B0
040257,000849:                                                                                                  #        DT12            CORRECTION TO FINAL TIME T2                             DP      B28     CENTISECONDS
040258,000850:                                                                                                  #        RCON            FINAL RADIUS                                            DP      B29/B27 METERS
040259,000851:                                                                                                  #        DRCON           DELTA RCON                                              DP      B29/B27 METERS
040260,000852: 
040261,000853: 32,2541           71220        PREC100            STQ      DLOAD                                 
040262,000854: 32,2542           03762                                    SPRTEX                                
040263,000855: 32,2543           33532                                    10RTE                                 
040264,000856: 32,2544           17730                           STODL    NN1A                                  
040265,000857: 32,2545           03636                                    RCON                                  
040266,000858: 32,2546           03664                           STORE    RD                                    
040267,000859: 32,2547           77745        PREC120            DLOAD                                          
040268,000860: 32,2550           33542                                    2RTEB1                                
040269,000861: 32,2551           17650                           STODL    DT21PR                                #  DT21PR = POSMAX
040270,000862: 32,2552           33530                                    M15RTE                                
040271,000863: 32,2553           37732                           STCALL   NN2                                   
040272,000864: 32,2554           63726                                    RTENCK3                               
040273,000865: 32,2555           77624        PREC125            CALL                                           
040274,000866: 32,2556           11637                                    PARAM                                 
040275,000867: 32,2557           77745                           DLOAD                                          
040276,000868: 32,2560           02742                                    P                                     
040277,000869: 32,2561           14033                           STODL    P/RPRE                                
040278,000870: 32,2562           02744                                    R1A                                   
040279,000871: 32,2563           14035                           STODL    R/APRE                                
040280,000872: 32,2564           00041                                    R1                                    
040281,000873: 32,2565           14031                           STODL    RPRE                                  
040282,000874: 32,2566           03775                                    COGA                                  
040283,000875: 32,2567           77661                           SL                                             
040284,000876: 32,2570           20206                                    5                                     
040285,000877: 32,2571           03724                           STORE    X(T2)PRE                              
040286,000878: 32,2572           43276                           DCOMP    DAD                                   
040287,000879: 32,2573           03726                                    X(T2)                                 
040288,000880: 32,2574           45246                           ABS      DSU                                   
040289,000881: 32,2575           33604                                    EPC4RTE                               
040290,000882: 32,2576           50000                           BOV      BMN                                   
040291,000883: 32,2577           64601                                    PREC130                               
040292,000884: 32,2600           64770                                    PREC175                               
040293,000885: 
040294,000886:                                                                                                  #  DESIRED REENTRY ANGLE NOT ACHIEVED
040295,000887: 

Page 909

040297,000889: 32,2601           50145        PREC130            DLOAD    BMN                                   
040298,000890: 32,2602           03732                                    NN2                                   
040299,000891: 32,2603           64607                                    PREC140                               
040300,000892: 32,2604           52135        PREC132            SLOAD    GOTO                                  #  TOO MANY ITERATIONS
040301,000893: 32,2605           33562                                    OCT605                                #        EXIT WITH ALARM
040302,000894: 32,2606           65073                                    PRECX                                 
040303,000895: 
040304,000896:                                                                                                  #  DETERMINE RADIUS AT WHICH THE DESIRED REENTRY ANGLE WILL BE ACHIEVED
040305,000897: 
040306,000898: 32,2607           53145        PREC140            DLOAD    BZE                                   
040307,000899: 32,2610           03730                                    NN1A                                  
040308,000900: 32,2611           64647                                    PREC162                               
040309,000901: 32,2612           62545        PREC150            DLOAD    SL2                                   #                                B2
040310,000902: 32,2613           00033                                    P/RPRE                                
040311,000903: 32,2614           72405                           DMP      SL1                                   #  BETA2=BETA1*P/R               B2      PL02
040312,000904: 32,2615           03754                                    BETA1                                 
040313,000905: 32,2616           71206                           PUSH     DLOAD                                 
040314,000906: 32,2617           00035                                    R/APRE                                
040315,000907: 32,2620           41212                           SL4      DMP                                   
040316,000908: 32,2621           00001                                    00D                                   
040317,000909: 32,2622           50021                           BDSU     BMN                                   #  BETA3=1-BETA2*R/A
040318,000910: 32,2623           33506                                    1RTEB4                                
040319,000911: 32,2624           64637                                    PREC160                               
040320,000912: 32,2625           75512        PREC155            SL2      SQRT                                  
040321,000913: 32,2626           44205                           DMP      BDSU                                  
040322,000914: 32,2627           03761                                    PHI2                                  
040323,000915: 32,2630           33504                                    1RTEB3                                
040324,000916: 32,2631           65301                           NORM     PDDL                                  
040325,000917: 32,2632           00047                                    X1                                    
040326,000918: 32,2633           56342                           SR1      DDV                                   #  BETA4=BETA2/(1-PHI2*SQRT(BETA3))
040327,000919: 32,2634           52057                           SL*      GOTO                                  #                                B1
040328,000920: 32,2635           20200                                    0          -1,1                       
040329,000921: 32,2636           64655                                    PREC165                               
040330,000922: 32,2637           60345        PREC160            DLOAD    NORM                                  
040331,000923: 32,2640           00035                                    R/APRE                                
040332,000924: 32,2641           00047                                    X1                                    
040333,000925: 32,2642           53665                           BDDV     SL*                                   #                                B1
040334,000926: 32,2643           33500                                    1RTEB1                                
040335,000927: 32,2644           20173                                    0          -6,1                       
040336,000928: 32,2645           77650                           GOTO                                           
040337,000929: 32,2646           64655                                    PREC165                               
040338,000930: 32,2647           60345        PREC162            DLOAD    NORM                                  
040339,000931: 32,2650           00031                                    RPRE                                  
040340,000932: 32,2651           00047                                    X1                                    
040341,000933: 32,2652           53665                           BDDV     SL*                                   #  BETA4=RD/RPRE                 B1
040342,000934: 32,2653           03664                                    RD                                    
040343,000935: 32,2654           20200                                    0          -1,1                       
040344,000936: 32,2655           41401        PREC165            SETPD    PUSH                                  
040345,000937: 32,2656           00001                                    0                                     
040346,000938: 32,2657           57425                           DSU      DCOMP                                 

Page 910

040348,000940: 32,2660           33500                                    1RTEB1                                
040349,000941: 32,2661           03765                           STORE    BETA12                                
040350,000942: 32,2662           71240                           BMN      DLOAD                                 
040351,000943: 32,2663           64674                                    PREC168                               
040352,000944: 32,2664           03724                                    X(T2)PRE                              
040353,000945: 32,2665           71240                           BMN      DLOAD                                 
040354,000946: 32,2666           64672                                    PREC167                               
040355,000947: 32,2667           03765                                    BETA12                                
040356,000948: 32,2670           77676                           DCOMP                                          
040357,000949: 32,2671           03765                           STORE    BETA12                                
040358,000950: 32,2672           77745        PREC167            DLOAD                                          
040359,000951: 32,2673           03765                                    BETA12                                
040360,000952: 32,2674           45246        PREC168            ABS      DSU                                   
040361,000953: 32,2675           33610                                    EPC6RTE                               
040362,000954: 32,2676           71240                           BMN      DLOAD                                 
040363,000955: 32,2677           64770                                    PREC175                               
040364,000956: 32,2700           72405                           DMP      SL1                                   
040365,000957: 32,2701           00031                                    RPRE                                  
040366,000958: 32,2702           77606                           PUSH                                           #  RF = NEW RADIUS
040367,000959: 32,2703           43345        PREC170            DLOAD    DAD                                   
040368,000960: 32,2704           03732                                    NN2                                   
040369,000961: 32,2705           33522                                    1RTEB28                               
040370,000962: 32,2706           03732                           STORE    NN2                                   
040371,000963: 32,2707           43175                           VLOAD    SET                                   
040372,000964: 32,2710           03656                                    R(T2)/                                
040373,000965: 32,2711           03466                                    RVSW                                  
040374,000966: 32,2712           26657                           STOVL    RVEC                                  
040375,000967: 32,2713           03710                                    V(T2)/                                
040376,000968: 32,2714           77765                           SIGN                                           
040377,000969: 32,2715           03765                                    BETA12                                
040378,000970: 32,2716           16746                           STODL    VVEC                                  
040379,000971: 32,2717           33500                                    1RTEB1                                
040380,000972: 32,2720           57565                           SIGN     DCOMP                                 
040381,000973: 32,2721           03765                                    BETA12                                
040382,000974: 32,2722           71354                           LXA,2    DLOAD                                 
040383,000975: 32,2723           00154                                    MPAC                                  
040384,000976: 32,2724           67140                           LXC,1    SXA,2                                 
040385,000977: 32,2725           03734                                    CONICX1                               
040386,000978: 32,2726           02756                                    SGNRDOT                               
040387,000979: 32,2727           36760                           STCALL   RDESIRED                              #  COMPUTED DT12 (CORRECTION TO TIME OF
040388,000980: 32,2730           25556                                    TIMERAD                               #        NEW RADIUS)
040389,000981: 32,2731           75345                           DLOAD    SIGN                                  
040390,000982: 32,2732           00037                                    T                                     
040391,000983: 32,2733           03765                                    BETA12                                
040392,000984: 32,2734           60325                           PDDL     NORM                                  #  DT21=(PHI4)DT21                       PL02D
040393,000985: 32,2735           03650                                    DT21PR                                
040394,000986: 32,2736           00047                                    X1                                    
040395,000987: 32,2737           53665                           BDDV     SL*                                   
040396,000988: 32,2740           00001                                    00D                                   
040397,000989: 32,2741           20176                                    0          -3,1                       

Page 911

040399,000991: 32,2742           50006                           PUSH     BMN                                   #  BETA13=(DT21)/(DT21PR)        R3      PL04D
040400,000992: 32,2743           64750                                    PREC172                               
040401,000993: 32,2744           65345                           DLOAD    PDDL                                  #  BETA14=1                      B0      PL04D
040402,000994: 32,2745           33542                                    2RTEB1                                
040403,000995: 32,2746           77650                           GOTO                                           
040404,000996: 32,2747           64752                                    PREC173                               
040405,000997: 32,2750           65345        PREC172            DLOAD    PDDL                                  #  BETA14=.6                     B0      PL04D
040406,000998: 32,2751           33534                                    M.6RTE                                
040407,000999: 32,2752           45271        PREC173            DDV      DSU                                   
040408,001000: 32,2753           00003                                    02D                                   
040409,001001: 32,2754           33504                                    1RTEB3                                
040410,001002: 32,2755           71240                           BMN      DLOAD                                 
040411,001003: 32,2756           64762                                    PREC174                               
040412,001004: 32,2757           77605                           DMP                                            
040413,001005: 32,2760           03650                                    DT21PR                                
040414,001006: 32,2761           00001                           STORE    00D                                   #  DT21=(BETA14)DT21PR           B28
040415,001007: 32,2762           41545        PREC174            DLOAD    PUSH                                  
040416,001008: 32,2763           00001                                    00D                                   
040417,001009: 32,2764           37650                           STCALL   DT21PR                                
040418,001010: 32,2765           63710                                    RTENCK2                               
040419,001011: 32,2766           77650                           GOTO                                           
040420,001012: 32,2767           64555                                    PREC125                               
040421,001013: 32,2770           45345        PREC175            DLOAD    DSU                                   
040422,001014: 32,2771           00031                                    RPRE                                  
040423,001015: 32,2772           03664                                    RD                                    
040424,001016: 32,2773           51406                           PUSH     ABS                                   #  RPRE-RD = RERR
040425,001017: 32,2774           50025                           DSU      BMN                                   
040426,001018: 32,2775           33612                                    EPC7RTE                               
040427,001019: 32,2776           34703                                    PREC220                               
040428,001020: 
040429,001021:                                                                                                  #  DESIRED RADIUS HAS NOT BEEN ACHIEVED
040430,001022: 
040431,001023: 32,2777           53145                           DLOAD    BZE                                   
040432,001024: 32,3000           03730                                    NN1A                                  
040433,001025: 32,3001           64604                                    PREC132                               #  TOO MANY ITERATIONS
040434,001026: 32,3002           53025                           DSU      BZE                                   
040435,001027: 32,3003           33532                                    10RTE                                 
040436,001028: 32,3004           65037                                    PREC207                               
040437,001029: 32,3005           45345        PREC205            DLOAD    DSU                                   #  NOT FIRST PASS OF ITERATION
040438,001030: 32,3006           03670                                    RPRE'                                 
040439,001031: 32,3007           00031                                    RPRE                                  #  RPRE'-RPRE                    B29/B27
040440,001032: 32,3010           55301                           NORM     BDDV                                  
040441,001033: 32,3011           00050                                    X2                                    
040442,001034: 32,3012           03666                                    DRCON                                 
040443,001035: 32,3013           41457                           SL*      PUSH                                  #  DRCON/(RPRE'-RPRE)=S          B2
040444,001036: 32,3014           57600                                    0          -2,2                       
040445,001037: 32,3015           40015                           DAD      BOV                                   #  S GR +4 OR LS -4
040446,001038: 32,3016           33500                                    1RTEB1                                
040447,001039: 32,3017           65024                                    PREC205M                              
040448,001040: 32,3020           45246                           ABS      DSU                                   

Page 912

040450,001042: 32,3021           33500                                    1RTEB1                                
040451,001043: 32,3022           77640                           BMN                                            
040452,001044: 32,3023           65027                                    PREC206                               
040453,001045: 32,3024           57545        PREC205M           DLOAD    DCOMP                                 #  S GR 0 OR LS -4
040454,001046: 32,3025           33542                                    2RTEB1                                
040455,001047: 32,3026           77725                           PDDL                                           #  S=-4                          B2
040456,001048: 32,3027           41345        PREC206            DLOAD    DMP                                   
040457,001049: 32,3030           77712                           SL2                                            
040458,001050: 32,3031           03666                           STORE    DRCON                                 #  DRCON=S(RERR)                 B29
040459,001051: 32,3032           77615                           DAD                                            
040460,001052: 32,3033           03636                                    RCON                                  
040461,001053: 32,3034           03636                           STORE    RCON                                  #  RCON+DRCON=RCON
040462,001054: 32,3035           77650                           GOTO                                           
040463,001055: 32,3036           65056                                    PREC210                               
040464,001056: 32,3037           63545        PREC207            DLOAD    DSQ                                   #  FIRST PASS OF ITERATION
040465,001057: 32,3040           03664                                    RD                                    
040466,001058: 32,3041           70501                           NORM     SR1                                   
040467,001059: 32,3042           00047                                    X1                                    
040468,001060: 32,3043           60325                           PDDL     NORM                                  
040469,001061: 32,3044           00031                                    RPRE                                  
040470,001062: 32,3045           00050                                    X2                                    
040471,001063: 32,3046           55260                           XSU,1    BDDV                                  
040472,001064: 32,3047           00047                                    X2                                    
040473,001065: 32,3050           77657                           SR*                                            
040474,001066: 32,3051           20600                                    0          -1,1                       
040475,001067: 32,3052           03636                           STORE    RCON                                  #  RD**2/RPRE=RCON
040476,001068: 32,3053           77625                           DSU                                            
040477,001069: 32,3054           03664                                    RD                                    
040478,001070: 32,3055           03666                           STORE    DRCON                                 #  RCON-RD=DRCON
040479,001071: 32,3056           77745        PREC210            DLOAD                                          #  PREPARE FOR NEXT ITERATION
040480,001072: 32,3057           00031                                    RPRE                                  
040481,001073: 32,3060           17670                           STODL    RPRE'                                 
040482,001074: 32,3061           03730                                    NN1A                                  
040483,001075: 32,3062           77625                           DSU                                            
040484,001076: 32,3063           33522                                    1RTEB28                               
040485,001077: 32,3064           37730                           STCALL   NN1A                                  
040486,001078: 32,3065           65075                                    V2T100                                
040487,001079: 32,3066           52030                           BHIZ     GOTO                                  
040488,001080: 32,3067           64547                                    PREC120                               
040489,001081: 32,3070           65073                                    PRECX                                 
040490,001082: 
040491,001083:                                                                                                  #  DESIRED RADIUS ACHIEVED
040492,001084: 
040493,001085: 16,2000                                           SETLOC   RTE2                                  
040494,001086: 16,2000                                           BANK                                           
040495,001087: 16,2703           45345        PREC220            DLOAD    DSU                                   
040496,001088: 16,2704           03726                                    X(T2)                                 
040497,001089: 16,2705           03724                                    X(T2)PRE                              
040498,001090: 16,2706           45246                           ABS      DSU                                   
040499,001091: 16,2707           34716                                    EPC8RTE                               

Page 913

040501,001093: 16,2710           67240                           BMN      SLOAD                                 
040502,001094: 16,2711           65071                                    PREC225                               
040503,001095: 16,2712           34720                                    OCT613                                
040504,001096: 16,2713           77650                           GOTO                                           
040505,001097: 16,2714           65073                                    PRECX                                 #  IF REENTRY ANGLE OUT OF LIMITS
040506,001098: 
040507,001099: 16,2715           00040 30447  EPC8RTE            2DEC     .002                                  
040508,001100: 
040509,001101: 16,2717           00613        OCT613             OCT      613                                   
040510,001102: 
040511,001103:                                                                                                  #  DESIRED FINAL ANGLE HAS BEEN REACHED.
040512,001104: 
040513,001105: 32,2000                                           SETLOC   RTE                                   
040514,001106: 32,2000                                           BANK                                           
040515,001107: 32,3071           77745        PREC225            DLOAD                                          
040516,001108: 32,3072           33524                                    ZERORTE                               
040517,001109: 32,3073           77650        PRECX              GOTO                                           
040518,001110: 32,3074           03762                                    SPRTEX                                
040519,001111: 

Page 914

040521,001113:                                                                                                  #  INTEGRATION CALLING SUBROUTINE
040522,001114: 
040523,001115:                                                                                                  #  DESCRIPTION
040524,001116:                                                                                                  #        PERFORMS CONIC AND PRECISION INTEGRATIONS USING SUBROUTINE INTEGRVS.  THERE ARE THREE ENTRANCES (RTENCK1,
040525,001117:                                                                                                  #        RTENCK2, AND RTENCK3) FOR DIFFERENT SOURCES OF INPUT AND DIFFERENT OPTIONS.  THERE IS A COMMON SET OF OUTPUT
040526,001118:                                                                                                  #        WHICH INCLUDES SET UP OF INPUT FOR THE PARAM SUBROUTINE.
040527,001119: 
040528,001120:                                                                                                  #  RTENCK1 (CONIC INTEGRATION)
040529,001121: 
040530,001122:                                                                                                  #     CALLING SEQUENCE
040531,001123:                                                                                                  #        L       CALL
040532,001124:                                                                                                  #        L+1             RTENCK1
040533,001125: 
040534,001126:                                                                                                  #     ERASABLE INITIALIZATION REQUIRED
040535,001127:                                                                                                  #        SAME AS FOR THE RTENCK3 ENTRANCE
040536,001128: 
040537,001129:                                                                                                  #  RTENCK2 (PRECISION INTEGRATION)
040538,001130: 
040539,001131:                                                                                                  #     CALLING SEQUENCE
040540,001132:                                                                                                  #        L       CALL
040541,001133:                                                                                                  #        L+1             RTENCK2
040542,001134: 
040543,001135:                                                                                                  #     ERASABLE INITIALIZATION REQUIRED
040544,001136:                                                                                                  #        PUSHLIST
040545,001137:                                                                                                  #            PUSHLOC-2   INTEGRATION TIME DT12 (CORRECTION TO T2)                DP      B28     CS
040546,001138:                                                                                                  #        OTHER
040547,001139:                                                                                                  #            R(T2)/      FINAL POSITION VECTOR                                   VECTOR  B29     METERS
040548,001140:                                                                                                  #            V(T2)/      FINAL VELOCITY VECTOR                                   VECTOR  B7      METERS/CS
040549,001141:                                                                                                  #            T2          FINAL TIME                                              DP      B28     CS
040550,001142: 
040551,001143:                                                                                                  #  RTENCK3 (PRECISION INTEGRATION)
040552,001144: 
040553,001145:                                                                                                  #     CALLING SEQUENCE
040554,001146:                                                                                                  #        L       CALL
040555,001147:                                                                                                  #        L+1             RTENCK3
040556,001148: 
040557,001149:                                                                                                  #     ERASABLE INITIALIZATION REQUIRED
040558,001150:                                                                                                  #        R(T1)/          INITIAL POSITION VECTOR                                 VECTOR  B29     METERS
040559,001151:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7      M/CS
040560,001152:                                                                                                  #        T1              INITIAL VECTOR TIME                                     DP      B28     CS
040561,001153:                                                                                                  #        T2              FINAL TIME                                              DP      B28     CS
040562,001154: 
040563,001155:                                                                                                  #  EXIT MODE
040564,001156:                                                                                                  #        AT L+2 OF CALLING SEQUENCE
040565,001157: 
040566,001158:                                                                                                  #  SUBROUTINES CALLED
040567,001159:                                                                                                  #        INTSTALL
040568,001160:                                                                                                  #        INTEGRVS
040569,001161: 
040570,001162:                                                                                                  #  OUTPUT
040571,001163:                                                                                                  #     PUSHLIST

Page 915

040573,001165:                                                                                                  #        PUSHLOC-6       FINAL POSITION VECTOR R(T2)/                            VECTOR  B29     METERS
040574,001166:                                                                                                  #        X1              CONICS MUTABLE ENTRY FOR EARTH (-2)                     SP      B14
040575,001167:                                                                                                  #     MPAC
040576,001168:                                                                                                  #                        FINAL VELOCITY VECTOR V(T2)/                            VECTOR  B7      M/CS
040577,001169:                                                                                                  #     OTHER
040578,001170:                                                                                                  #        R(T2)/          AS IN PUSHLIST
040579,001171:                                                                                                  #        V(T2)/          AS IN MPAC
040580,001172:                                                                                                  #        T2              FINAL TIME                                              DP      B28     CS
040581,001173: 
040582,001174: 31,2000                                           SETLOC   RTE3                                  
040583,001175: 31,2000                                           BANK                                           
040584,001176: 31,3700           45020        RTENCK1            STQ      CALL                                  
040585,001177: 31,3701           03733                                    RTENCKEX                              
040586,001178: 31,3702           27442                                    INTSTALL                              
040587,001179: 31,3703           43175                           VLOAD    SET                                   
040588,001180: 31,3704           03640                                    R(T1)/                                
040589,001181: 31,3705           01473                                    INTYPFLG                              
040590,001182: 31,3706           77650                           GOTO                                           
040591,001183: 31,3707           63734                                    RTENCK3B                              
040592,001184: 
040593,001185: 31,3710           45020        RTENCK2            STQ      CALL                                  
040594,001186: 31,3711           03733                                    RTENCKEX                              
040595,001187: 31,3712           27442                                    INTSTALL                              
040596,001188: 31,3713           77214                           CLEAR    VLOAD                                 
040597,001189: 31,3714           01673                                    INTYPFLG                              
040598,001190: 31,3715           03656                                    R(T2)/                                
040599,001191: 31,3716           25535                           STOVL    RCV                                   
040600,001192: 31,3717           03710                                    V(T2)/                                
040601,001193: 31,3720           15543                           STODL    VCV                                   
040602,001194: 31,3721           03736                                    T2                                    
040603,001195: 31,3722           01517                           STORE    TET                                   
040604,001196: 31,3723           77615                           DAD                                            
040605,001197: 31,3724           77650                           GOTO                                           
040606,001198: 31,3725           63742                                    RTENCK3D                              
040607,001199: 
040608,001200: 31,3726           45020        RTENCK3            STQ      CALL                                  
040609,001201: 31,3727           03733                                    RTENCKEX                              
040610,001202: 31,3730           27442                                    INTSTALL                              
040611,001203: 31,3731           43175        RTENCK3A           VLOAD    CLEAR                                 
040612,001204: 31,3732           03640                                    R(T1)/                                
040613,001205: 31,3733           01673                                    INTYPFLG                              
040614,001206: 31,3734           25535        RTENCK3B           STOVL    RCV                                   
040615,001207: 31,3735           03700                                    V2(T1)/                               
040616,001208: 31,3736           15543                           STODL    VCV                                   
040617,001209: 31,3737           03716                                    T1                                    
040618,001210: 31,3740           15517                           STODL    TET                                   
040619,001211: 31,3741           03736                                    T2                                    

Page 916

040621,001213: 31,3742           00041        RTENCK3D           STORE    TDEC1                                 
040622,001214: 31,3743           45014                           CLEAR    CALL                                  
040623,001215: 31,3744           00263                                    MOONFLAG                              
040624,001216: 31,3745           27135                                    INTEGRVS                              
040625,001217: 31,3746           77775                           VLOAD                                          
040626,001218: 31,3747           00001                                    RATT                                  
040627,001219: 31,3750           03656                           STORE    R(T2)/                                
040628,001220: 31,3751           70125                           PDDL     LXC,1                                 
040629,001221: 31,3752           00015                                    TAT                                   
040630,001222: 31,3753           03734                                    CONICX1                               
040631,001223: 31,3754           27736                           STOVL    T2                                    
040632,001224: 31,3755           00007                                    VATT                                  
040633,001225: 31,3756           03710                           STORE    V(T2)/                                
040634,001226: 31,3757           77650                           GOTO                                           
040635,001227: 31,3760           03733                                    RTENCKEX                              
040636,001228: 32,2000                                           SETLOC   RTE                                   
040637,001229: 32,2000                                           BANK                                           
040638,001230: 

Page 917

040640,001232:                                                                                                  #  V2(T1) COMPUTATION SUBROUTINE
040641,001233: 
040642,001234:                                                                                                  #  DESCRIPTION
040643,001235:                                                                                                  #        A POST IMPULSE VELOCITY VECTOR (V2(T1)) IS COMPUTED WHICH EITHER
040644,001236:                                                                                                  #        (1)     MEETS THE INPUT VELOCITY CHANGE DESIRED (RTEDVD) IN A MINIMUM TIME      OR
040645,001237:                                                                                                  #        (2)     IF A VELOCITY CHANGE ISN'T SPECIFIED (RTEDVD = 0), A V2(T1) IS COMPUTED WHICH MINIMIZES THE IMPULSE (DV)
040646,001238:                                                                                                  #                AND CONSEQUENTLY FUEL.
040647,001239: 
040648,001240:                                                                                                  #  CALLING SEQUENCE
040649,001241:                                                                                                  #        L       CALL
040650,001242:                                                                                                  #        L+1             V2T100
040651,001243: 
040652,001244:                                                                                                  #  NORMAL EXIT MODE
040653,001245:                                                                                                  #        AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040654,001246: 
040655,001247:                                                                                                  #  ALARM EXIT MODE
040656,001248:                                                                                                  #        AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS.
040657,001249: 
040658,001250:                                                                                                  #  SUBROUTINES CALLED
040659,001251:                                                                                                  #        GAMDV10
040660,001252:                                                                                                  #        XT1LIM
040661,001253:                                                                                                  #        DVCALC
040662,001254: 
040663,001255:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
040664,001256:                                                                                                  #     PUSHLIST
040665,001257:                                                                                                  #        NONE
040666,001258:                                                                                                  #     MPAC
040667,001259:                                                                                                  #        NONE
040668,001260:                                                                                                  #     OTHER
040669,001261:                                                                                                  #        R(T1)           MAGNITUDE OF INITIAL POSITION VECTOR                    DP      B29/B27 METERS
040670,001262:                                                                                                  #        RCON            MAGNITUDE OF FINAL POSITION VECTOR                      DP      B29/B27 METERS
040671,001263:                                                                                                  #        V(T1)/          INITIAL VELOCITY VECTOR                                 VECTOR  B7/B5   METERS/CS
040672,001264:                                                                                                  #        RTEDVD          DELTA VELOCITY DESIRED                                  DP      B7/B5   METERS/CS
040673,001265:                                                                                                  #        UR1/            UNIT INITIAL VECTOR                                     VECTOR  B1
040674,001266:                                                                                                  #        UH/             UNIT HORIZONTAL VECTOR                                  VECTOR  B1
040675,001267:                                                                                                  #        X(T2)           COTANGENT OF FINAL FLIGHT PATH ANGLE                    DP      B0
040676,001268:                                                                                                  #        X(T1)           COTANGENT OF INITIAL FLIGHT PATH ANGLE (INPUT FOR PREC) DP      B5
040677,001269:                                                                                                  #        CFPA            COSINE OF INITIAL FLIGHT PATH ANGLE                     DP      B1
040678,001270:                                                                                                  #        MAMAX1          MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR      DP      B30/B28 METERS
040679,001271:                                                                                                  #        MAMAX2          MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR      DP      B30/B28 METERS
040680,001272:                                                                                                  #        PHI2            REENTRY NEAR PERIGEE OR APOGEE INDICATE (RTE ONLY)      DP      B2      -1 PERIGEE, +1 APOGEE
040681,001273:                                                                                                  #        N1              CONIC OR PRECISION ITERATION OPERATOR                   DP      B28     NEGATIVE CONIC, PLUS PREC
040682,001274: 
040683,001275:                                                                                                  #  OUTPUT
040684,001276:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7/B5   METERS/CS
040685,001277:                                                                                                  #        DV              INITIAL VELOCITY CHANGE                                 DP      B7/B5   METERS/CS
040686,001278:                                                                                                  #        X(T1)           COTANGENT OF INITIAL FLIGHT PATH ANGLE (POST IMPULSE)   DP      B5
040687,001279:                                                                                                  #        PCON            SEMI-LATUS RECTUM                                       DP      B28/B26 METERS
040688,001280:                                                                                                  #        BETA1           1+X(T2)**2                                              DP      B1
040689,001281: 

Page 918

040691,001283: 
040692,001284:                                                                                                  #  DEBRIS
040693,001285:                                                                                                  #     PUSHLIST
040694,001286:                                                                                                  #        00D             X(T1),,=PREVIOUS PRECISION X(T1)                        DP      B5
040695,001287:                                                                                                  #        02D             THETA1=BETA5*LAMBDA-1                                   TP      B17
040696,001288:                                                                                                  #        05D             THETA2=2*R(T1)*(LAMBDA-1)                               TP      B38/B36
040697,001289:                                                                                                  #        08D             THETA3=MU**.5/R(T1)                                     DP      B-4/B-5
040698,001290:                                                                                                  #        10D             X(T1)MIN=LOWER BOUND ON X(T1) IN GAMDV ITERATOR         DP      B5
040699,001291:                                                                                                  #        12D             DX(T1)MAX=MAXIMUM DELTA X(T1)                           DP      B5
040700,001292:                                                                                                  #        14D             X(T1)MAX=UPPER BOUND ON X(T1) IN GAMDV ITERATOR         DP      B5
040701,001293:                                                                                                  #        16D             DX(T1)=ITERATOR INCREMENT                               DP      B5
040702,001294:                                                                                                  #        31D             GAMDV10 SUBROUTINE RETURN ADDRESS
040703,001295:                                                                                                  #        32D             DVCALC SUBROUTINE RETURN ADDRESS
040704,001296:                                                                                                  #        33D             V2T100 SUBROUTINE RETURN ADDRESS
040705,001297: 
040706,001298: 32,3075           71220        V2T100             STQ      DLOAD                                 
040707,001299: 32,3076           00041                                    33D                                   
040708,001300: 32,3077           03636                                    RCON                                  
040709,001301: 32,3100           45240                           BMN      DSU                                   #  ABORT IF RCON NEGATIVE
040710,001302: 32,3101           65105                                    V2TERROR                              
040711,001303: 32,3102           03646                                    R(T1)                                 
040712,001304: 32,3103           77640                           BMN                                            
040713,001305: 32,3104           65110                                    V2T101                                
040714,001306: 32,3105           77776        V2TERROR           EXIT                                           #        OR IF LAMBDA LESS THAN ONE
040715,001307: 32,3106           05721                           TC       P00DOO                                #  NO SOLUTION IF LAMBDA LESS THAN 1
040716,001308: 32,3107           00610                           OCT      00610                                 
040717,001309: 32,3110           43001        V2T101             SETPD    CLEAR                                 
040718,001310: 32,3111           00001                                    0                                     #                                        PL00D
040719,001311: 32,3112           00272                                    F2RTE                                 
040720,001312: 32,3113           60345                           DLOAD    NORM                                  
040721,001313: 32,3114           03636                                    RCON                                  
040722,001314: 32,3115           00047                                    X1                                    
040723,001315: 32,3116           60325                           PDDL     NORM                                  
040724,001316: 32,3117           03646                                    R(T1)                                 
040725,001317: 32,3120           00051                                    S1                                    
040726,001318: 32,3121           00013                           STORE    10D                                   
040727,001319: 32,3122           56342                           SR1      DDV                                   #  R1/RCON = LAMBDA              B1
040728,001320: 32,3123           65260                           XSU,1    PDDL                                  #                                        PL02D
040729,001321: 32,3124           00050                                    S1                                    
040730,001322: 32,3125           03726                                    X(T2)                                 
040731,001323: 32,3126           77716                           DSQ                                            
040732,001324: 32,3127           43342                           SR1      DAD                                   
040733,001325: 32,3130           33500                                    1RTEB1                                
040734,001326: 32,3131           03754                           STORE    BETA1                                 #  1+X(T2)**2 = BETA1            B1
040735,001327: 32,3132           77605                           DMP                                            
040736,001328: 32,3133           00001                                    00D                                   
040737,001329: 32,3134           00035                           STORE    28D                                   #  BETAI*LAMBDA = BETA5
040738,001330: 32,3135           53605                           DMP      SL*                                   
040739,001331: 32,3136           00001                                    00D                                   
040740,001332: 32,3137           20172                                    0          -7,1                       
040741,001333: 32,3140           45257                           SL*      DSU                                   

Page 919

040743,001335: 32,3141           20172                                    0          -7,1                       
040744,001336: 32,3142           33516                                    1RTEB17                               
040745,001337: 32,3143           65234                           RTB      PDDL                                  #  BETA5*LAMBDA-1 = THETA1       B17     PL05D
040746,001338: 32,3144           45565                                    TPMODE                                
040747,001339: 32,3145           33500                                    1RTEB1                                
040748,001340: 32,3146           57457                           SR*      DCOMP                                 
040749,001341: 32,3147           20601                                    0,1                                   
040750,001342: 32,3150           41215                           DAD      DMP                                   
040751,001343: 32,3151           00001                                    00D                                   
040752,001344: 32,3152           03646                                    R(T1)                                 
040753,001345: 32,3153           47057                           SL*      RTB                                   
040754,001346: 32,3154           20172                                    0          -7D,1                      
040755,001347: 32,3155           45565                                    TPMODE                                
040756,001348: 32,3156           77725                           PDDL                                           #  2*R(T1)*(LAMBDA-1)=THETA2     B38/B36 PL08D
040757,001349: 32,3157           33632                                    RTMURTE                               
040758,001350: 32,3160           70501                           NORM     SR1                                   
040759,001351: 32,3161           00050                                    X2                                    
040760,001352: 32,3162           56264                           XSU,2    DDV                                   
040761,001353: 32,3163           00050                                    S1                                    
040762,001354: 32,3164           00013                                    10D                                   
040763,001355: 32,3165           65257                           SR*      PDDL                                  #  MU**.5/R(T1)=THETA3           B-4/B-5 PL10D
040764,001356: 32,3166           57170                                    6,2                                   
040765,001357: 32,3167           03652                                    MAMAX1                                
040766,001358: 32,3170           41406                           PUSH     PUSH                                  #  MAMAX1=MA
040767,001359: 32,3171           77624                           CALL                                           
040768,001360: 32,3172           65734                                    XT1LIM                                
040769,001361: 32,3173           41476                           DCOMP    PUSH                                  #  X(T1)MIN                      B5      PL12D
040770,001362: 32,3174           40476                           DCOMP    SR4                                   
040771,001363: 32,3175           41525                           PDDL     PUSH                                  #  DX(T1)MAX                     B5      PL14D
040772,001364: 32,3176           03654                                    MAMAX2                                
040773,001365: 32,3177           45006                           PUSH     CALL                                  
040774,001366: 32,3200           65734                                    XT1LIM                                
040775,001367: 32,3201           50125                           PDDL     BMN                                   #  X(T1)MAX                      B5      PL16D
040776,001368: 32,3202           03730                                    NN1A                                  
040777,001369: 32,3203           65206                                    V2T102                                
040778,001370: 32,3204           77650                           GOTO                                           
040779,001371: 32,3205           65220                                    V2T110                                
040780,001372: 
040781,001373:                                                                                                  #  PROCEED HERE IF NOT PRECISION COMPUTATION
040782,001374: 
040783,001375: 32,3206           77745        V2T102             DLOAD                                          
040784,001376: 32,3207           03632                                    RTEDVD                                
040785,001377: 32,3210           52054                           BZE      GOTO                                  
040786,001378: 32,3211           65213                                    V2T105                                
040787,001379: 32,3212           65314                                    V2T140                                
040788,001380: 32,3213           50145        V2T105             DLOAD    BMN                                   
040789,001381: 32,3214           03757                                    CFPA                                  
040790,001382: 32,3215           65314                                    V2T140                                
040791,001383: 32,3216           77650                           GOTO                                           
040792,001384: 32,3217           65322                                    V2T145                                

Page 920

040794,001386:                                                                                                  #  DURING A PRECISION TRAJECTORY ITERATION CONSTRAIN THE INDEPENDENT
040795,001387:                                                                                                  #  VARIABLE TO INSURE THAT ALL CONICS PASS THROUGH RCON ON THE SAME PASS
040796,001388:                                                                                                  #  THROUGH X(T2)
040797,001389: 
040798,001390: 32,3220           47145        V2T110             DLOAD    RTB                                   
040799,001391: 32,3221           33516                                    1RTEB17                               
040800,001392: 32,3222           45565                                    TPMODE                                
040801,001393: 32,3223           65276                           DCOMP    PDDL                                  #  -1                            B17     PL19D
040802,001394: 32,3224           33542                                    2RTEB1                                
040803,001395: 32,3225           45257                           SR*      DSU                                   
040804,001396: 32,3226           20601                                    0,1                                   
040805,001397: 32,3227           00001                                    00D                                   
040806,001398: 32,3230           53605                           DMP      SL*                                   
040807,001399: 32,3231           00035                                    28D                                   
040808,001400: 32,3232           20172                                    0          -7,1                       
040809,001401: 32,3233           76257                           SL*      TAD                                   
040810,001402: 32,3234           20172                                    0          -7,1                       
040811,001403: 32,3235           65234                           RTB      PDDL                                  #  BETA5(2-LAMBDA)-1=BETA6       B17     PL19D
040812,001404: 32,3236           45565                                    TPMODE                                
040813,001405: 32,3237           03722                                    X(T1)                                 
040814,001406: 32,3240           00001                           STORE    00D                                   #  X(T1),,                       B5
040815,001407: 32,3241           77751                           TLOAD                                          #                                        PL16D
040816,001408: 32,3242           53040                           BMN      BZE                                   
040817,001409: 32,3243           65250                                    V2T115                                
040818,001410: 32,3244           65250                                    V2T115                                
040819,001411: 32,3245           52061                           SL       GOTO                                  
040820,001412: 32,3246           20210                                    7                                     
040821,001413: 32,3247           65261                                    V2T120                                
040822,001414: 32,3250           50145        V2T115             DLOAD    BMN                                   
040823,001415: 32,3251           03761                                    PHI2                                  
040824,001416: 32,3252           65272                                    V2T125                                
040825,001417: 32,3253           77676                           DCOMP                                          
040826,001418: 32,3254           17761                           STODL    PHI2                                  
040827,001419: 32,3255           33532                                    10RTE                                 
040828,001420: 32,3256           03730                           STORE    NN1A                                  
040829,001421: 32,3257           77650                           GOTO                                           
040830,001422: 32,3260           65272                                    V2T125                                
040831,001423: 32,3261           47166        V2T120             SQRT     RTB                                   
040832,001424: 32,3262           45716                                    DPMODE                                
040833,001425: 32,3263           50125                           PDDL     BMN                                   #  BETA6**.5=X(T1)LIM            B5      PL18D
040834,001426: 32,3264           03761                                    PHI2                                  
040835,001427: 32,3265           65300                                    V2T130                                
040836,001428: 32,3266           45545                           DLOAD    STADR                                 
040837,001429: 32,3267           77760                           STORE    14D                                   #  X(T1)LIM = X(T1)MAX
040838,001430: 32,3270           77676                           DCOMP                                          
040839,001431: 32,3271           00013                           STORE    10D                                   #  -X(T1)LIM = X(T1)MIN
040840,001432: 32,3272           53145        V2T125             DLOAD    BZE                                   
040841,001433: 32,3273           03722                                    X(T1)                                 
040842,001434: 32,3274           65314                                    V2T140                                
040843,001435: 32,3275           52040                           BMN      GOTO                                  

Page 921

040845,001437: 32,3276           65314                                    V2T140                                
040846,001438: 32,3277           65322                                    V2T145                                
040847,001439: 32,3300           53145        V2T130             DLOAD    BZE                                   
040848,001440: 32,3301           03722                                    X(T1)                                 
040849,001441: 32,3302           65311                                    V2T135                                
040850,001442: 32,3303           71240                           BMN      DLOAD                                 #                                        PL16D
040851,001443: 32,3304           65311                                    V2T135                                
040852,001444: 32,3305           77626                           STADR                                          
040853,001445: 32,3306           77764                           STORE    10D                                   #  X(T1)LIM = X(T1)MIN
040854,001446: 32,3307           77650                           GOTO                                           
040855,001447: 32,3310           65322                                    V2T145                                
040856,001448: 32,3311           57545        V2T135             DLOAD    DCOMP                                 #                                        PL16D
040857,001449: 32,3312           77626                           STADR                                          
040858,001450: 32,3313           77760                           STORE    14D                                   #  -X(T1)LIM = X(T1)MAX
040859,001451: 32,3314           77745        V2T140             DLOAD                                          
040860,001452: 32,3315           00013                                    10D                                   
040861,001453: 32,3316           17722                           STODL    X(T1)                                 #  X(T1)MIN = X(T1)
040862,001454: 32,3317           00015                                    12D                                   
040863,001455: 32,3320           52006                           PUSH     GOTO                                  #  DX(T1)MAX = DX(T1)                    PL18D
040864,001456: 32,3321           65327                                    V2T150                                
040865,001457: 32,3322           77745        V2T145             DLOAD                                          
040866,001458: 32,3323           00017                                    14D                                   
040867,001459: 32,3324           17722                           STODL    X(T1)                                 #  X(T1)MAX = X(T1)
040868,001460: 32,3325           00015                                    12D                                   
040869,001461: 32,3326           41476                           DCOMP    PUSH                                  #  -DX(T1)MAX = DX(T1)                   PL18D
040870,001462: 32,3327           77624        V2T150             CALL                                           #  GOTO X(T1)-DV ITERATOR
040871,001463: 32,3330           65457                                    GAMDV10                               
040872,001464: 32,3331           53145                           DLOAD    BZE                                   #  EXIT IF MINIMUM FUEL MODE
040873,001465: 32,3332           03632                                    RTEDVD                                
040874,001466: 32,3333           65455                                    V2T1X                                 
040875,001467: 
040876,001468:                                                                                                  #  CONTINUE IF TIME CRITICAL MODE
040877,001469: 
040878,001470: 32,3334           50025                           DSU      BMN                                   
040879,001471: 32,3335           03706                                    DV                                    
040880,001472: 32,3336           65341                                    V2T155                                
040881,001473: 32,3337           77650                           GOTO                                           
040882,001474: 32,3340           65374                                    V2T175                                
040883,001475: 32,3341           50145        V2T155             DLOAD    BMN                                   
040884,001476: 32,3342           03730                                    NN1A                                  
040885,001477: 32,3343           65346                                    V2T160                                
040886,001478: 32,3344           77650                           GOTO                                           
040887,001479: 32,3345           65416                                    V2T185                                
040888,001480: 
040889,001481:                                                                                                  #  CONIC TRAJECTORY COMPUTATION
040890,001482: 
040891,001483: 32,3346           53145        V2T160             DLOAD    BZE                                   
040892,001484: 32,3347           03722                                    X(T1)                                 
040893,001485: 32,3350           65354                                    V2T165                                
040894,001486: 32,3351           52040                           BMN      GOTO                                  

Page 922

040896,001488: 32,3352           65354                                    V2T165                                
040897,001489: 32,3353           65453                                    V2T300                                
040898,001490: 32,3354           53145        V2T165             DLOAD    BZE                                   
040899,001491: 32,3355           03757                                    CFPA                                  
040900,001492: 32,3356           65453                                    V2T300                                
040901,001493: 32,3357           71240                           BMN      DLOAD                                 
040902,001494: 32,3360           65453                                    V2T300                                
040903,001495: 32,3361           00017                                    14D                                   
040904,001496: 32,3362           17722                           STODL    X(T1)                                 #  X(T1)MAX=X(T1)
040905,001497: 32,3363           00015                                    12D                                   
040906,001498: 32,3364           77676                           DCOMP                                          
040907,001499: 32,3365           34021                           STCALL   16D                                   #  -DX(T1)MAX=DX(T1)
040908,001500: 32,3366           65457                                    GAMDV10                               
040909,001501: 32,3367           45345                           DLOAD    DSU                                   
040910,001502: 32,3370           03632                                    RTEDVD                                
040911,001503: 32,3371           03706                                    DV                                    
040912,001504: 32,3372           77640                           BMN                                            
040913,001505: 32,3373           65453                                    V2T300                                
040914,001506: 32,3374           71214        V2T175             SET      DLOAD                                 
040915,001507: 32,3375           00072                                    F2RTE                                 
040916,001508: 32,3376           03722                                    X(T1)                                 
040917,001509: 32,3377           77614                           BOFF                                           
040918,001510: 32,3400           02742                                    SLOWFLG                               
040919,001511: 32,3401           65406                                    V2T177                                
040920,001512: 32,3402           14013                           STODL    10D                                   #  X(T1)MIN
040921,001513: 32,3403           00015                                    12D                                   #  DX(T1)MAX
040922,001514: 32,3404           77650                           GOTO                                           
040923,001515: 32,3405           65411                                    V2T179                                
040924,001516: 32,3406           14017        V2T177             STODL    14D                                   
040925,001517: 32,3407           00015                                    12D                                   
040926,001518: 32,3410           77676                           DCOMP                                          
040927,001519: 32,3411           34021        V2T179             STCALL   16D                                   #  DX(T1)
040928,001520: 32,3412           65457                                    GAMDV10                               
040929,001521: 32,3413           50145                           DLOAD    BMN                                   
040930,001522: 32,3414           03730                                    NN1A                                  
040931,001523: 32,3415           65453                                    V2T300                                
040932,001524: 
040933,001525:                                                                                                  #  PREVENT A LARGE CHANGE IN INDEPENDENT VARIABLE DURING AN ITERATION FOR A
040934,001526:                                                                                                  #  PRECISION TRAJECTORY
040935,001527: 
040936,001528: 32,3416           45345        V2T185             DLOAD    DSU                                   
040937,001529: 32,3417           03722                                    X(T1)                                 
040938,001530: 32,3420           00001                                    00D                                   
040939,001531: 32,3421           65246                           ABS      PDDL                                  #  /X(T1)-X(T1),,/ = BETA7
040940,001532: 32,3422           00015                                    12D                                   
040941,001533: 32,3423           44352                           SL1      BDSU                                  
040942,001534: 32,3424           71240                           BMN      DLOAD                                 
040943,001535: 32,3425           65453                                    V2T300                                
040944,001536: 32,3426           00001                                    00D                                   #  CONTINUE IF BETA7 LARGER THAN 2DX(T1)MAX
040945,001537: 32,3427           03722                           STORE    X(T1)                                 #  X(T1),, = X(T1)

Page 923

040947,001539: 32,3430           50025                           DSU      BMN                                   
040948,001540: 32,3431           00017                                    14D                                   
040949,001541: 32,3432           65440                                    V2T195                                
040950,001542: 32,3433           77745                           DLOAD                                          
040951,001543: 32,3434           00017                                    14D                                   
040952,001544: 32,3435           03722                           STORE    X(T1)                                 #  X(T1)MAX = X(T1)
040953,001545: 32,3436           77650                           GOTO                                           
040954,001546: 32,3437           65451                                    V2T205                                
040955,001547: 32,3440           45345        V2T195             DLOAD    DSU                                   
040956,001548: 32,3441           03722                                    X(T1)                                 
040957,001549: 32,3442           00013                                    10D                                   
040958,001550: 32,3443           52040                           BMN      GOTO                                  
040959,001551: 32,3444           65446                                    V2T200                                
040960,001552: 32,3445           65451                                    V2T205                                
040961,001553: 32,3446           77745        V2T200             DLOAD                                          
040962,001554: 32,3447           00013                                    10D                                   
040963,001555: 32,3450           03722                           STORE    X(T1)                                 #  X(T1)MIN = X(T1)
040964,001556: 32,3451           77624        V2T205             CALL                                           
040965,001557: 32,3452           65660                                    DVCALC                                
040966,001558: 32,3453           77745        V2T300             DLOAD                                          
040967,001559: 32,3454           33524                                    ZERORTE                               
040968,001560: 32,3455           77650        V2T1X              GOTO                                           
040969,001561: 32,3456           00041                                    33D                                   
040970,001562: 

Page 924

040972,001564:                                                                                                  #  X(T1)-DV ITERATOR SUBROUTINE
040973,001565: 
040974,001566:                                                                                                  #  DESCRIPTION
040975,001567:                                                                                                  #        COMPUTES A POST IMPULSE VELOCITY VECTOR (V2(T1)) WHICH REQUIRES A MINIMUM DV.
040976,001568: 
040977,001569:                                                                                                  #  CALLING SEQUENCE
040978,001570:                                                                                                  #        L       CALL
040979,001571:                                                                                                  #        L+1             GAMDV10
040980,001572: 
040981,001573:                                                                                                  #  NORMAL EXIT MODE
040982,001574:                                                                                                  #        AT L+2 OF CALLING SEQUENCE
040983,001575: 
040984,001576:                                                                                                  #  ALARM EXIT MODE
040985,001577:                                                                                                  #        AT V2T1X WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS
040986,001578: 
040987,001579:                                                                                                  #  SUBROUTINES CALLED
040988,001580:                                                                                                  #        DVCALC
040989,001581: 
040990,001582:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
040991,001583:                                                                                                  #     PUSHLIST
040992,001584:                                                                                                  #        02D             THETA1=BETA5*LAMBDA-1                                   TP      B17
040993,001585:                                                                                                  #        05D             THETA2=2*R(T1)*(LAMBDA-1)                               TP      B38/B36
040994,001586:                                                                                                  #        08D             THETA3=MU**.5/R(T1)                                     DP      B-4/B-5
040995,001587:                                                                                                  #        10D             X(T1)MIN=LOWER BOUND ON INDEPENDENT VARIABLE X(T1)      DP      B5
040996,001588:                                                                                                  #        12D             DX(T1)MAX=MAXIMUM DX(T1)                                DP      B5
040997,001589:                                                                                                  #        14D             X(T1)MAX=UPPER BOUND ON INDEPENDENT VARIABLE X(T1)      DP      B5
040998,001590:                                                                                                  #        16D             DX(T1)=ITERATOR INCREMENT                               DP      B5
040999,001591:                                                                                                  #     MPAC
041000,001592:                                                                                                  #        NONE
041001,001593:                                                                                                  #     OTHER
041002,001594:                                                                                                  #        V(T1)/          INITIAL VELOCITY VECTOR                                 VECTOR  B7/B5   METERS/CS
041003,001595:                                                                                                  #        RTEDVD          DELTA VELOCITY DESIRED                                  DP      B7/B5   METERS/CS
041004,001596:                                                                                                  #        UR1/            UNIT INITIAL VECTOR                                     VECTOR  B1
041005,001597:                                                                                                  #        UH/             UNIT HORIZONTAL VECTOR                                  VECTOR  B1
041006,001598:                                                                                                  #        X(T1)           COTANGENT OF INITIAL FLIGHT PATH ANGLE (FROM VERTICAL)  DP      B5
041007,001599:                                                                                                  #        F2RTE           TIME CRITICAL OR MINIMUM FUEL MODE INDICATOR            STATE AREA      0 MIN. FUEL, 1 MIN. TIME
041008,001600: 
041009,001601:                                                                                                  #  OUTPUT
041010,001602:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7/B5   METERS/CS
041011,001603:                                                                                                  #        DV              INITIAL VELOCITY CHANGE                                 DP      B7/B5   METERS/CS
041012,001604:                                                                                                  #        X(T1)           COTANGENT OF INITIAL FPA MEASURED FROM VERTICAL         DP      B5
041013,001605:                                                                                                  #        PCON            SEMI-LATUS RECTUM                                       DP      B28/B26 METERS
041014,001606: 
041015,001607:                                                                                                  #  DEBRIS
041016,001608:                                                                                                  #     PUSHLIST
041017,001609:                                                                                                  #        00D             X(T1),,
041018,001610:                                                                                                  #        02D             THETA1
041019,001611:                                                                                                  #        05D             THETA2
041020,001612:                                                                                                  #        08D             THETA3
041021,001613:                                                                                                  #        10D             X(T1)MIN
041022,001614:                                                                                                  #        12D             DX(T1)MAX

Page 925

041024,001616:                                                                                                  #        14D             X(T1)MAX
041025,001617:                                                                                                  #        16D             DX(T1)
041026,001618:                                                                                                  #        22D             DV,=PREVIOUS DV                                         DP      B7/B5
041027,001619:                                                                                                  #        24D             BETA9=X(T1)+1.1DX(T1)                                   DP      B5
041028,001620:                                                                                                  #        31D             GAMDV10 SUBROUTINE RETURN ADDRESS
041029,001621:                                                                                                  #        32D             DVCALC SUBROUTINE RETURN ADDRESS
041030,001622:                                                                                                  #        33D             V2T100 SUBROUTINE RETURN ADDRESS
041031,001623: 
041032,001624: 32,3457           77620        GAMDV10            STQ                                            
041033,001625: 32,3460           00037                                    31D                                   
041034,001626: 32,3461           45001                           SETPD    CALL                                  
041035,001627: 32,3462           00023                                    18D                                   #                                        PL18D
041036,001628: 32,3463           65660                                    DVCALC                                
041037,001629: 32,3464           45345                           DLOAD    DSU                                   
041038,001630: 32,3465           00017                                    14D                                   
041039,001631: 32,3466           00013                                    10D                                   
041040,001632: 32,3467           77600                           BOV                                            
041041,001633: 32,3470           65510                                    GAMDV20                               
041042,001634: 32,3471           45206                           PUSH     DSU                                   #  X(T1)MAX-X(T1)MIN=BETA8       B5      PL20D
041043,001635: 32,3472           33614                                    EPC9RTE                               
041044,001636: 32,3473           71240                           BMN      DLOAD                                 
041045,001637: 32,3474           65656                                    GAMDVX                                #  BOUNDS CLOSE TOGETHER
041046,001638: 32,3475           00023                                    18D                                   
041047,001639: 32,3476           50025                           DSU      BMN                                   #  BETA8-DX(T1)MAX
041048,001640: 32,3477           00015                                    12D                                   
041049,001641: 32,3500           65504                                    GAMDV15                               
041050,001642: 32,3501           52001                           SETPD    GOTO                                  #                                        PL18D
041051,001643: 32,3502           00023                                    18D                                   
041052,001644: 32,3503           65510                                    GAMDV20                               
041053,001645: 32,3504           77745        GAMDV15            DLOAD                                          #                                        PL18D
041054,001646: 32,3505           70565                           SIGN     SR1                                   
041055,001647: 32,3506           00021                                    16D                                   
041056,001648: 32,3507           00021                           STORE    16D                                   #  BETA8(SIGNDX(T1))/2=DX(T1)
041057,001649: 32,3510           77745        GAMDV20            DLOAD                                          
041058,001650: 32,3511           33526                                    M144RTE                               
041059,001651: 32,3512           03732                           STORE    NN2                                   
041060,001652: 32,3513           43345        GAMDV25            DLOAD    DAD                                   
041061,001653: 32,3514           03732                                    NN2                                   
041062,001654: 32,3515           33522                                    1RTEB28                               
041063,001655: 32,3516           67240                           BMN      SLOAD                                 
041064,001656: 32,3517           65523                                    GAMDV30                               
041065,001657: 32,3520           33562                                    OCT605                                
041066,001658: 32,3521           77650                           GOTO                                           
041067,001659: 32,3522           65455                                    V2T1X                                 
041068,001660: 32,3523           03732        GAMDV30            STORE    NN2                                   #  NN2=NN2+1
041069,001661: 32,3524           65345                           DLOAD    PDDL                                  #  X(T1)=X(T1),                  B5      PL20D
041070,001662: 32,3525           03722                                    X(T1)                                 
041071,001663: 32,3526           03706                                    DV                                    
041072,001664: 32,3527           43325                           PDDL     DAD                                   #  DV=DV,                        B7/B5   PL22D
041073,001665: 32,3530           03722                                    X(T1)                                 
041074,001666: 32,3531           00021                                    16D                                   

Page 926

041076,001668: 32,3532           37722                           STCALL   X(T1)                                 #  X(T1)+DX(T1)=X(T1)            B5
041077,001669: 32,3533           65660                                    DVCALC                                
041078,001670: 32,3534           71214                           BON      DLOAD                                 
041079,001671: 32,3535           00312                                    F2RTE                                 
041080,001672: 32,3536           65552                                    GAMDV35                               
041081,001673: 32,3537           03706                                    DV                                    
041082,001674: 32,3540           50025                           DSU      BMN                                   #  CONTINUE IF FUEL CRITICAL MODE
041083,001675: 32,3541           00025                                    20D                                   
041084,001676: 32,3542           65547                                    GAMDV33                               
041085,001677: 32,3543           57545        GAMDV32            DLOAD    DCOMP                                 
041086,001678: 32,3544           00021                                    16D                                   
041087,001679: 32,3545           77742                           SR1                                            
041088,001680: 32,3546           00021                           STORE    16D                                   
041089,001681: 32,3547           52001        GAMDV33            SETPD    GOTO                                  
041090,001682: 32,3550           00023                                    18D                                   #                                        PL18D
041091,001683: 32,3551           65615                                    GAMDV50                               
041092,001684: 
041093,001685:                                                                                                  #  TIME CRITICAL MODE
041094,001686: 
041095,001687: 32,3552           45345        GAMDV35            DLOAD    DSU                                   
041096,001688: 32,3553           03632                                    RTEDVD                                
041097,001689: 32,3554           03706                                    DV                                    
041098,001690: 32,3555           41525                           PDDL     PUSH                                  #  DVD-DV=DVERR                  B7/B5   PL22D
041099,001691: 32,3556           51545        GAMDV40            DLOAD    ABS                                   #  DV,                                   PL24D
041100,001692: 32,3557           00025                                    20D                                   
041101,001693: 32,3560           50025                           DSU      BMN                                   
041102,001694: 32,3561           33616                                    EPC10RTE                              
041103,001695: 32,3562           65656                                    GAMDVX                                
041104,001696: 32,3563           71204        GAMDV45            BOVB     DLOAD                                 
041105,001697: 32,3564           57352                                    TCDANZIG                              #  ASSURE OVFIND IS 0
041106,001698: 32,3565           60221                           BDSU     NORM                                  
041107,001699: 32,3566           03706                                    DV                                    
041108,001700: 32,3567           00050                                    X2                                    
041109,001701: 32,3570           77725                           PDDL                                           #  DV-DV,                        B7/B5-N2 PL22D
041110,001702: 32,3571           70501                           NORM     SR1                                   #  DVERR                         B8/B6-N1
041111,001703: 32,3572           00047                                    X1                                    
041112,001704: 32,3573           65271                           DDV      PDDL                                  #  DVERR/ DV - DV
041113,001705: 32,3574           41221                           BDSU     DMP                                   #                                        PL18D
041114,001706: 32,3575           03722                                    X(T1)                                 
041115,001707: 32,3576           77660                           XSU,1                                          
041116,001708: 32,3577           00047                                    X2                                    
041117,001709: 32,3600           00021                           STORE    16D                                   #  PRESERVE SIGN IF OVERFLOW
041118,001710: 32,3601           40057                           SR*      BOV                                   
041119,001711: 32,3602           20600                                    0          -1,1                       
041120,001712: 32,3603           65611                                    GAMDV47                               
041121,001713: 32,3604           00021                           STORE    16D                                   #  (X(T1)-X(T1),)DVERR/(DV-DV,)=DX(T1)
041122,001714: 32,3605           45246                           ABS      DSU                                   
041123,001715: 32,3606           00015                                    12D                                   
041124,001716: 32,3607           77640                           BMN                                            
041125,001717: 32,3610           65615                                    GAMDV50                               

Page 927

041127,001719: 32,3611           75345        GAMDV47            DLOAD    SIGN                                  
041128,001720: 32,3612           00015                                    12D                                   
041129,001721: 32,3613           00021                                    16D                                   
041130,001722: 32,3614           00021                           STORE    16D                                   #  DX(T1)MAX(SIGNDX(T1))=DX(T1)
041131,001723: 
041132,001724:                                                                                                  #  CHECK TO KEEP INDEPENDENT VARIABLE IN BOUNDS
041133,001725: 
041134,001726: 32,3615           41345        GAMDV50            DLOAD    DMP                                   
041135,001727: 32,3616           00021                                    16D                                   
041136,001728: 32,3617           33536                                    1.1RTEB1                              
041137,001729: 32,3620           43352                           SL1      DAD                                   
041138,001730: 32,3621           03722                                    X(T1)                                 
041139,001731: 32,3622           00031                           STORE    24D                                   #  X(T1)+1.1DX(T1)=BETA9         B5
041140,001732: 32,3623           50025                           DSU      BMN                                   
041141,001733: 32,3624           00017                                    14D                                   
041142,001734: 32,3625           65634                                    GAMDV55                               
041143,001735: 32,3626           45345                           DLOAD    DSU                                   
041144,001736: 32,3627           00017                                    14D                                   
041145,001737: 32,3630           03722                                    X(T1)                                 
041146,001738: 32,3631           77742                           SR1                                            
041147,001739: 32,3632           34021                           STCALL   16D                                   #  (X(T1)MAX-X(T1))/2=DX(T1)     B5
041148,001740: 32,3633           65647                                    GAMDV65                               
041149,001741: 32,3634           45345        GAMDV55            DLOAD    DSU                                   
041150,001742: 32,3635           00031                                    24D                                   
041151,001743: 32,3636           00013                                    10D                                   
041152,001744: 32,3637           52040                           BMN      GOTO                                  
041153,001745: 32,3640           65642                                    GAMDV60                               
041154,001746: 32,3641           65647                                    GAMDV65                               
041155,001747: 32,3642           45345        GAMDV60            DLOAD    DSU                                   
041156,001748: 32,3643           00013                                    10D                                   
041157,001749: 32,3644           03722                                    X(T1)                                 
041158,001750: 32,3645           77742                           SR1                                            
041159,001751: 32,3646           00021                           STORE    16D                                   #  (X(T1)MIN-X(T1))/2=DX(T1)     B5
041160,001752: 32,3647           51545        GAMDV65            DLOAD    ABS                                   
041161,001753: 32,3650           00021                                    16D                                   
041162,001754: 32,3651           50025                           DSU      BMN                                   
041163,001755: 32,3652           33614                                    EPC9RTE                               
041164,001756: 32,3653           65656                                    GAMDVX                                
041165,001757: 32,3654           77650                           GOTO                                           
041166,001758: 32,3655           65513                                    GAMDV25                               
041167,001759: 32,3656           77650        GAMDVX             GOTO                                           
041168,001760: 32,3657           00037                                    31D                                   
041169,001761: 

Page 928

041171,001763:                                                                                                  #  DV CALCULATION SUBROUTINE
041172,001764: 
041173,001765:                                                                                                  #  INPUT
041174,001766:                                                                                                  #     PUSHLIST
041175,001767:                                                                                                  #        02D             THETA1=BETA5*LAMBDA-1                                   TP      B17
041176,001768:                                                                                                  #        05D             THETA2=2*R(T1)*(LAMBDA-1)                               TP      B38/B36
041177,001769:                                                                                                  #        08D             THETA3=MU**.5/R(T1)                                     DP      B-4/B-5
041178,001770:                                                                                                  #     OTHER
041179,001771:                                                                                                  #        X(T1)           COTANGENT OF POST IMPULSE INITIAL FLIGHT PATH ANGLE     DP      B5
041180,001772:                                                                                                  #        V(T1)/          INITIAL VELOCITY VECTOR (PRE IMPULSE)                   VECTOR  B7/B5   METERS/CS
041181,001773:                                                                                                  #        UR1/            UNIT INITIAL VECTOR                                     VECTOR  B1
041182,001774:                                                                                                  #        UH/             UNIT HORIZONTAL VECTOR                                  VECTOR  B1
041183,001775: 
041184,001776:                                                                                                  #  OUTPUT
041185,001777:                                                                                                  #        V2(T1)/         POST IMPULSE INITIAL VELOCITY VECTOR                    VECTOR  B7/B5   METERS/CS
041186,001778:                                                                                                  #        DV              INITIAL VELOCITY CHANGE                                 DP      B7/B5   METERS/CS
041187,001779:                                                                                                  #        PCON            SEMI-LATUS RECTUM                                       DP      B28/B26 METERS
041188,001780: 
041189,001781:                                                                                                  #  DEBRIS
041190,001782:                                                                                                  #        28D             THETA3*PCON**.5                                         DP      B10/B8-N1
041191,001783:                                                                                                  #        C(PUSHLOC)      THETA3(PCON**.5)*X(T1)*UR1/                             VECTOR  B7/B5
041192,001784:                                                                                                  #        32D             DVCALC SUBROUTINE RETURN ADDRESS
041193,001785:                                                                                                  #        X1              NORMALIZATION FACTOR FOR VALUE IN 28D
041194,001786: 
041195,001787:                                                                                                  #  PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING DVCALC
041196,001788: 
041197,001789: 32,3660           71220        DVCALC             STQ      DLOAD                                 
041198,001790: 32,3661           00040                                    32D                                   
041199,001791: 32,3662           03722                                    X(T1)                                 
041200,001792: 32,3663           54316                           DSQ      SR                                    
041201,001793: 32,3664           20610                                    7                                     
041202,001794: 32,3665           76276                           DCOMP    TAD                                   
041203,001795: 32,3666           00003                                    02D                                   
041204,001796: 32,3667           41501                           NORM     PUSH                                  
041205,001797: 32,3670           00047                                    X1                                    
041206,001798: 32,3671           60351                           TLOAD    NORM                                  
041207,001799: 32,3672           00006                                    05D                                   
041208,001800: 32,3673           00050                                    X2                                    
041209,001801: 32,3674           70434                           RTB      SR1                                   
041210,001802: 32,3675           45716                                    DPMODE                                
041211,001803: 32,3676           56264                           XSU,2    DDV                                   
041212,001804: 32,3677           00046                                    X1                                    
041213,001805: 32,3700           77657                           SR*                                            
041214,001806: 32,3701           57170                                    6,2                                   
041215,001807: 32,3702           03720                           STORE    PCON                                  #  THETA2/(THETA1-X(T1)**2)=PCON B28/26
041216,001808: 32,3703           41366                           SQRT     DMP                                   
041217,001809: 32,3704           00011                                    08D                                   
041218,001810: 32,3705           77701                           NORM                                           
041219,001811: 32,3706           00047                                    X1                                    
041220,001812: 32,3707           14035                           STODL    28D                                   #  THETA3*PCON**.5               B10/B8 -N1

Page 929

041222,001814: 32,3710           03722                                    X(T1)                                 
041223,001815: 32,3711           74301                           NORM     VXSC                                  
041224,001816: 32,3712           00050                                    X2                                    
041225,001817: 32,3713           03740                                    UR1/                                  #  X(T1)*UR1/                    B5+B1 -N2
041226,001818: 32,3714           74274                           XAD,2    VXSC                                  
041227,001819: 32,3715           00046                                    X1                                    
041228,001820: 32,3716           00035                                    28D                                   
041229,001821: 32,3717           63257                           VSR*     PDVL                                  #  THETA3(PCON**.5)X(T1)*UR1/    B7/B5
041230,001822: 32,3720           57207                                    0          -9D,2                      #                +
041231,001823: 32,3721           03746                                    UH/                                   
041232,001824: 32,3722           53761                           VXSC     VSR*                                  #  THETA3(PCON**.5)UH/           B7/B5
041233,001825: 32,3723           00035                                    28D                                   
041234,001826: 32,3724           20575                                    0          -4,1                       #                =
041235,001827: 32,3725           45455                           VAD      STADR                                 
041236,001828: 32,3726           74077                           STORE    V2(T1)/                               #  V2(T1)/                       B7/B5
041237,001829: 32,3727           51451                           VSU      ABVAL                                 
041238,001830: 32,3730           03672                                    V(T1)/                                
041239,001831: 32,3731           03706                           STORE    DV                                    #  ABVAL(V2(T1)/-V1(T)/)=DV      B7/B5
041240,001832: 32,3732           77650                           GOTO                                           
041241,001833: 32,3733           00040                                    32D                                   
041242,001834: 

Page 930

041244,001836:                                                                                                  #  SUBROUTINE TO COMPUTE BOUNDS ON INDEPENDENT VARIABLE X(T1)
041245,001837: 
041246,001838:                                                                                                  #  INPUT
041247,001839:                                                                                                  #     PUSHLIST
041248,001840:                                                                                                  #        PUSHLOC -4      MAJOR AXIS (MA)                                         DP      B30/B28
041249,001841:                                                                                                  #        PUSHLOC -2      MAJOR AXIS (MA) AGAIN                                   DP      B30/B28
041250,001842:                                                                                                  #        28D             BETA5=LAMBDA*BETA1                                      DP      B9
041251,001843:                                                                                                  #     OTHER
041252,001844:                                                                                                  #        RCON                                                                    DP      B29/B27
041253,001845:                                                                                                  #        R(T1)                                                                   DP      B29/B27
041254,001846: 
041255,001847:                                                                                                  #  OUTPUT
041256,001848:                                                                                                  #     MPAC
041257,001849:                                                                                                  #        X(T1)LIM        LIMIT ON INDEPENDENT VARIABLE X(T1)                     DP      B5
041258,001850: 
041259,001851:                                                                                                  #  DEBRIS
041260,001852:                                                                                                  #     PUSHLIST
041261,001853:                                                                                                  #        C(PUSHLOC)      MA-RCON                                                 DP      (B30/28)-N1
041262,001854:                                                                                                  #        C(PUSHLOC) +2   MA                                                      DP      B30/B28
041263,001855:                                                                                                  #        X1              NORMALIZATION FACTOR FOR MA-RCON
041264,001856:                                                                                                  #        20D             XT1LIM SUBROUTINE RETURN ADDRESS
041265,001857: 
041266,001858:                                                                                                  #  PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING XT1LIM
041267,001859: 
041268,001860: 32,3734           71220        XT1LIM             STQ      DLOAD                                 
041269,001861: 32,3735           00024                                    20D                                   
041270,001862: 32,3736           03636                                    RCON                                  
041271,001863: 32,3737           44342                           SR1      BDSU                                  
041272,001864: 32,3740           65301                           NORM     PDDL                                  #  MA-RCON                       B30-N1
041273,001865: 32,3741           00050                                    X2                                    
041274,001866: 32,3742           70525                           PDDL     SR1                                   
041275,001867: 32,3743           03646                                    R(T1)                                 
041276,001868: 32,3744           56221                           BDSU     DDV                                   
041277,001869: 32,3745           41257                           SL*      DMP                                   
041278,001870: 32,3746           57601                                    0          -3,2                       
041279,001871: 32,3747           00035                                    28D                                   
041280,001872: 32,3750           45257                           SL*      DSU                                   #  BETA10=BETA5(MA-RT)/(MA-RC)-1 B11
041281,001873: 32,3751           20173                                    0          -6,1                       
041282,001874: 32,3752           33521                                    1RTEB25    +1                         #  1.0                           B-11
041283,001875: 32,3753           40152                           SL1      BOV                                   
041284,001876: 32,3754           65760                                    XT1LIM2                               
041285,001877: 32,3755           52040                           BMN      GOTO                                  
041286,001878: 32,3756           65764                                    XT1LIM5                               
041287,001879: 32,3757           65762                                    XT1LIM3                               
041288,001880: 32,3760           77745        XT1LIM2            DLOAD                                          #  BETA10=POSMAX IF OVERFLOW
041289,001881: 32,3761           33542                                    2RTEB1                                
041290,001882: 32,3762           52166        XT1LIM3            SQRT     GOTO                                  #  X(T1)=SQRT(BETA10)
041291,001883: 32,3763           65766                                    XT1LIMX                               
041292,001884: 32,3764           77745        XT1LIM5            DLOAD                                          
041293,001885: 32,3765           33524                                    ZERORTE                               
041294,001886: 32,3766           77650        XT1LIMX            GOTO                                           
041295,001887: 32,3767           00024                                    20D                                   
041296,001888: 

Page 931

041298,001890:                                                                                                  #  CONSTANTS FOR THE P37 AND P70 PROGRAMS AND SUBROUTINES
041299,001891: 
041300,001892: 36,3254                                           BANK     36                                    
041301,001893: 35,2000                                           SETLOC   RTECON1                               
041302,001894: 35,2000                                           BANK                                           
041303,001895: 
041304,001896: 35,3477           20000 00000  1RTEB1             2DEC     1.         B-1                        
041305,001897: 35,3501           10000 00000  1RTEB2             2DEC     1.         B-2                        
041306,001898: 35,3503           04000 00000  1RTEB3             2DEC     1.         B-3                        
041307,001899: 35,3505           02000 00000  1RTEB4             2DEC     1.         B-4                        
041308,001900: 35,3507           00020 00000  1RTEB10            2DEC     1.         B-10                       
041309,001901: 35,3511           00004 00000  1RTEB12            2DEC     1.         B-12                       
041310,001902: 35,3513           00002 00000  1RTEB13            2DEC     1.         B-13                       
041311,001903: 35,3515           00000 04000  1RTEB17            2DEC     1.         B-17                       
041312,001904: 35,3517           00000 00010  1RTEB25            2DEC     1.         B-25                       
041313,001905:                                                                                                  #                                        * * B25 AND B28 MUST BE CONSECUTIVE * * 
041314,001906: 35,3521           00000 00001  1RTEB28            2DEC     1.         B-28                       
041315,001907: 35,3523           00000 00000  ZERORTE            2DEC     0          B-28                       
041316,001908: 35,3525           77777 77557  M144RTE            2DEC     -144.      B-28                       
041317,001909: 35,3527           77777 77760  M15RTE             2DEC     -15        B-28                       
041318,001910: 35,3531           00000 00012  10RTE              2DEC     10         B-28                       
041319,001911: 35,3533           54631 63145  M.6RTE             2DEC     -.6                                   
041320,001912: 35,3535           21463 06315  1.1RTEB1           2DEC     1.1        B-1                        
041321,001913: 35,3537           77777 77771  M6RTEB28           2DEC     -6         B-28                       
041322,001914: 35,3541           37777 37777  2RTEB1             2OCT     3777737777                            
041323,001915: 35,3543           77777 77766  M9RTEB28           2DEC     -9         B-28                       
041324,001916: 35,3545           77777 77767  M8RTEB28           2DEC     -8         B-28                       
041325,001917: 35,3547           00000 35610  30480RTE           2DEC     30480.     B-29                       
041326,001918: 35,3551           37405 12250  VCSPS              2DEC     31.510396  B-5                        #  (SEE 2VEXHUST)

Page 932

041328,001920: 35,3553           33041 37714  VCRCS              2DEC     27.0664    B-5                        
041329,001921: 35,3555           00003 13241  MDOTRCS            2DEC     .0016375   B-3                        
041330,001922: 35,3557           20000 00000  CSUBT              2DEC     .5                                    
041331,001923: 35,3561           00605        OCT605             OCT      00605                                 
041332,001924: 35,3562           00612        OCT612             OCT      00612                                 
041333,001925: 35,3563           40214 45266  MCOS7.5            2DEC     -.99144486                            
041334,001926: 35,3565           73645 56536  MSIN7.5            2DEC     -.13052619                            
041335,001927: 35,3567           70467 71205  MCOS22.5           2DEC     -.92387953 B-2                        
041336,001928: 35,3571           16525 12525  THETA165           2DEC     .4583333333                            
041337,001929: 35,3573           22525 12525  THETA210           2DEC     .5833333333                            
041338,001930: 35,3575           17775 06676  EPC1RTE            2DEC     .99966     B-1                        
041339,001931: 35,3577           00000 00062  EPC2RTE            2DEC     100.       B-29                       
041340,001932: 35,3601           00020 14223  EPC3RTE            2DEC     .001                                  
041341,001933: 35,3603           00000 05174  EPC4RTE            2DEC     .00001                                
041342,001934: 35,3605           00002 21727  EPC5RTE            2DEC     .01        B-6                        
041343,001935: 35,3607           00000 01654  EPC6RTE            2DEC     .000007    B-1                        
041344,001936: 35,3611           00000 00764  EPC7RTE            2DEC     1000.      B-29                       
041345,001937: 35,3613           00000 00010  EPC9RTE            2DEC     1.         B-25                       
041346,001938: 35,3615           00000 00322  EPC10RTE           2DEC     .0001      B-7                        
041347,001939: 
041348,001940: 35,3617                                           BANK     35                                    
041349,001941: 35,2000                                           SETLOC   RTECON1                               
041350,001942: 35,2000                                           BANK                                           
041351,001943: 
041352,001944: 35,3617           75725 75417  C4RTE              2DEC     -6.986643  E7         B-30            
041353,001945: 35,3621           00325 23740  K1RTE              2DEC     7.         E6         B-29            
041354,001946: 35,3623           00306 06614  K2RTE              2DEC     6495000.   B-29                       
041355,001947: 35,3625           76027 70156  K3RTE              2DEC     -.06105                               
041356,001948: 35,3627           74517 54131  K4RTE              2DEC     -.10453                               
041357,001949: 35,3631           30276 05001  RTMURTE            2DEC     199650.501 B-18                       

Page 933

041359,001951: 35,3633           00003 27040  E3RTE              2DEC     121920.    B-29                       
041360,001952: 

End of include-file P37_P70.agc.  Parent file is MAIN.agc