Source Code

These source-code files were derived from scans of the Colossus 237 (Apollo 8 Command Module) program listing from the private collection of original AGC developer Fred Martin. Scanning was by Ron Burkey. Pre-existing Colossus 249 (Apollo 9 CM) source files were used as a template, and changes between Colossus 249 and Colossus 237 were manually transcribed by a team of volunteers. Note that the page images presented online are of reduced quality, and that additional 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 237 OF AGC PROGRAM COLOSSUS 
	BY NASA 2021111-031  1:17 AUG. 24, 1968
Note that the date is the date of the printout, not the date of the program revision.

032549,000002:                                                                                                  ## Copyright:   Public domain.
032550,000003:                                                                                                  ## Filename:    MAIN.agc
032551,000004:                                                                                                  ## Purpose:     Part of the source code for Colossus build 237.  
032552,000005:                                                                                                  ##              This is for the Command Module's (CM) Apollo Guidance
032553,000006:                                                                                                  ##              Computer (AGC), for Apollo 8.
032554,000007:                                                                                                  ## Assembler:   yaYUL
032555,000008:                                                                                                  ## Contact:     Onno Hommes <ohommes@alumni.cmu.edu>
032556,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
032557,000010:                                                                                                  ## Page Scans:  www.ibiblio.org/apollo/ScansForConversion/Colossus237/
032558,000011:                                                                                                  ## Mod history: 2010-05-18 OH   Adapted from corresponding Colossus 249 file.
032559,000012:                                                                                                  ##              2010-12-04 JL   Remove Colossus 249 header comments. Change to double-has page numbers.
032560,000013:                                                                                                  ##              2011-02-08 JL   Minor fixes.
032561,000014:                                                                                                  ##              2016-11-02 RSB  Typo (offset-references +2 and +3 not indented).
032562,000015:                                                                                                  ##              2017-01-01 RSB  Proofed comment text using octopus/ProoferComments,
032563,000016:                                                                                                  ##                              and fixed errors found.
032564,000017:                                                                                                  ##              2017-01-18 RSB  Fixed comment-text errors noted while diff'ing
032565,000018:                                                                                                  ##                              vs Colossus 249.
032566,000019:                                                                                                  ##              2017-02-08 RSB  Fixed comment-text errors noted while diff'ing
032567,000020:                                                                                                  ##                              vs Artemis 72.
032568,000021: 

Page 740

032570,000023:                                                                                                  #  PROGRAM:             P61
032571,000024:                                                                                                  #  MOD NO.:             0    MAR. 13, 1967
032572,000025:                                                                                                  #  MOD BY:              R. HIRSCHKOP
032573,000026:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER      DATE:  22 JUN 67     RESTARTS.
032574,000027:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP CHANGES.
032575,000028:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:   8 MAY 68     DELETE CMSM MANEUVER (PCR 50)
032576,000029:                                                                                                  #  FUNCTION:            TO CALCULATE AND DISPLAY EMS INITIALIZATION DATA
032577,000030:                                                                                                  #  CALLING SEQUENCE-    BY V37
032578,000031:                                                                                                  #  EXIT-                TO P62
032579,000032:                                                                                                  #  SUBROUTINE CALLS-    S61.1 , S61.3 , GOFLASH , FLAGUP , R02BOTH
032580,000033: 
032581,000034:                                                                                                  #  ERASABLE INITIALIZATION:
032582,000035:                                                                                                  #           EMSALT  (-29) M        .05G ALTITUDE ABOVE FISCHER ELLIPSOID   PAD LOADED.
032583,000036:                                                                                                  #           ALFAPAD  /180          HYPERSONIC CM TRIM ANGLE OF ATTACK      PAD LOADED
032584,000037:                                                                                                  #  OUTPUT:  THE FOLLOWING REGISTERS ARE WRITTEN IN FOR USE BY DISPLAYS
032585,000038:                                                                                                  #           GMAX   100 GMAX  (-14)  G,S     MAXIMUM ACCELERATION
032586,000039:                                                                                                  #           VPRED  (-7)  M/CS      PREDICTED VELOCITY AT 400K FT
032587,000040:                                                                                                  #           GAMMAEI  GAMMA/360     PREDICTED GAMMA    AT 400K FT
032588,000041:                                                                                                  #           RTGO   THETAH/360      RANGE ANGLE TO SPLASH FROM EMSALT       EMSALT IS PAD LOADED
032589,000042:                                                                                                  #           VIO    (-7) M/CS       INERTIAL VELOCITY AT       EMSALT       EMSALT IS PAD LOADED
032590,000043:                                                                                                  #           TTE    (-28) CS        TIME     TO                EMSALT       EMSALT IS PAD LOADED
032591,000044:                                                                                                  #           LAT(SPL)  /360         TARGET LOCATION                         LEFT BY DSKY
032592,000045:                                                                                                  #           LNG(SPL)  /360         TARGET LOCATION                         LEFT BY DSKY
032593,000046:                                                                                                  #           HEADSUP   (0)          +1 = LIFT DOWN, -1 = LIFT UP            LEFT BY DSKY
032594,000047:                                                                                                  #  DEBRIS:  SEE SUBROUTINES.
032595,000048: 
032596,000049: 26,2217                                           BANK     26                                    
032597,000050: 26,2000                                           SETLOC   P60S                                  
032598,000051: 26,2000                                           BANK                                           
032599,000052: 
032600,000053: 26,2217  E6,1661                                  EBANK=   AOG                                   
032601,000054: 
032602,000055: 26,2217                                           COUNT*   $$/P61                                
032603,000056: 
032604,000057: 26,2217           34675        P61                CA       BIT14                                 #  EXTENDED VERB SHOULD BE FREE THIS CLOSE
032605,000058: 26,2220           55044                           TS       EXTVBACT                              #  TO V37
032606,000059:                                                                                                  #                                          LOCK OUT EXTENDED VERBS SO CAN USE TFF
032607,000060:                                                                                                  #                                          ROUTINES.EXT VERB ERASE IS USED
032608,000061: 
032609,000062: 26,2221           44712                           CS       ONE                                   #  REMOVE IF HEADSUP EVER ON UPLINK DATA
032610,000063: 26,2222           55726                           TS       HEADSUP                               #  PRELOAD
032611,000064: 
032612,000065: 26,2223           02543                           TC       S61.1                                 #  CHECK STATE VECTOR AND IMU ORIENTATION
032613,000066:                                                                                                  #                               RV 60GENRET. DOES PHASCHNG, GROUP 4.
032614,000067: 
032615,000068: 26,2224           32424                           CA       V06N61                                #  LAT(SPL)     LNG(SPL)     HEADSUP
032616,000069:                                                                                                  #                                          XXX.XX DEG   XXX.XX DEG   XXXXX.
032617,000070: 26,2225           04555                           TC       BANKCALL                              
032618,000071: 26,2226           20763                           CADR     GOFLASHR                              
032619,000072: 26,2227           04106                           TC       GOTOPOOH                              

Page 741

032621,000074: 26,2230           02235                           TC       P61.4                                 
032622,000075: 26,2231           02224                           TC       -5                                    
032623,000076: 
032624,000077: 26,2232           05301        P61.3              TC       PHASCHNG                              
032625,000078: 26,2233           00014                           OCT      00014                                 
032626,000079: 
032627,000080: 26,2234           05112                           TC       ENDOFJOB                              
032628,000081: 
032629,000082: 26,2235           22007        P61.4              ZL                                             
032630,000083: 26,2236           11726                           CCS      HEADSUP                               #  C(HEADSUP)=  +1/-1
032631,000084: 26,2237           34675                           CA       BIT14                                 #  IF HEADSUP POS,ROLLC =180 DEG.(LIFT DWN)
032632,000085: 26,2240           12241                           NOOP                                           #  IF HEADSUP NEG,ROLLC=0 (LIFT UP)
032633,000086: 26,2241           53716                           DXCH     ROLLC                                 #  ROLLC IS USED BY S62.3: GIM ANG AT .05G
032634,000087: 
032635,000088: 26,2242           06006                           TC       INTPRET                               
032636,000089: 26,2243           77745        NEWRNVN            DLOAD                                          
032637,000090: 26,2244           01205                                    PIPTIME                               #  SAVE TIME OF RN,VN TO DETERMINE IF AN
032638,000091: 26,2245           37651                           STCALL   MM                                    #  UPDATE HAS OCCURRED
032639,000092: 26,2246           52063                                    STARTEN1                              #  INITIALIZE
032640,000093: 26,2247           77775                           VLOAD                                          
032641,000094: 26,2250           01171                                    RN                                    
032642,000095: 26,2251           02327                           STORE    RONE                                  
032643,000096: 26,2252           77656                           UNIT                                           
032644,000097: 26,2253           26343                           STOVL    URONE                                 
032645,000098: 26,2254           01177                                    VN                                    
032646,000099: 26,2255           02335                           STORE    VONE                                  
032647,000100: 26,2256           53435                           VXV      UNIT                                  
032648,000101: 26,2257           02343                                    URONE                                 
032649,000102: 26,2260           03502                           STORE    UNI                                   
032650,000103: 26,2261           45345        DUMPP61            DLOAD    DSU                                   
032651,000104: 26,2262           03651                                    MM                                    #  INITIAL VALUE OF PIPTIME
032652,000105: 26,2263           01205                                    PIPTIME                               
032653,000106: 26,2264           45040                           BMN      CALRB                                 
032654,000107: 26,2265           54243                                    NEWRNVN                               #  UPDATED... GO TRY AGAIN
032655,000108: 26,2266           54650                                    S61.2                                 #  GET DISPLAY DATA FOR N60 AND N63
032656,000109:                                                                                                  #                                          AND RETURN IN BASIC, BELOW.
032657,000110: 26,2267           05425        P61.1              TC       CLEARMRK                              
032658,000111: 26,2270           32423                           CA       V06N60                                #  GMAX         VPRED         GAMMAEI
032659,000112:                                                                                                  #                                          XXX.XX G     XXXXX. FPS    XXX.XX DEG
032660,000113: 26,2271           04555                           TC       BANKCALL                              
032661,000114: 26,2272           20624                           CADR     GOFLASH                               
032662,000115: 
032663,000116: 26,2273           04106                           TC       GOTOPOOH                              
032664,000117: 26,2274           02276                           TC       P61.2                                 #  PROCEED
032665,000118: 26,2275           02270                           TC       -5                                    
032666,000119: 
032667,000120: 26,2276           06006        P61.2              TC       INTPRET                               #  CORRECT  TTE  FOR TIME LAPSE DURING
032668,000121:                                                                                                  #                                          ABOVE DISPLAY.
032669,000122: 26,2277           45234                           RTB      DSU                                   
032670,000123: 26,2300           45505                                    LOADTIME                              #  CURRENT TIME.

Page 742

032672,000125: 26,2301           03651                                    MM                                    #  PIPTIME FOR RONE & VONE.
032673,000126: 26,2302           77615                           DAD                                            
032674,000127: 26,2303           03733                                    TTE1                                  #  NEGATIVE OF FREE FALL TIME.
032675,000128: 26,2304           03727                           STORE    TTE                                   #  DECREMENTED
032676,000129: 
032677,000130: 26,2305           77776                           EXIT                                           
032678,000131: 
032679,000132: 26,2306           32425                           CA       V06N63                                #  RTGO         VIO           TTE
032680,000133:                                                                                                  #                                          XXXX.X NM    XXXXX. FPS    XXBXX M,S
032681,000134: 26,2307           04555                           TC       BANKCALL                              
032682,000135: 26,2310           20624                           CADR     GOFLASH                               
032683,000136: 26,2311           04106                           TC       GOTOPOOH                              
032684,000137: 26,2312           02314                           TC       +2                                    
032685,000138: 26,2313           02276                           TC       P61.2                                 #  REDO
032686,000139: 
032687,000140:                                                                                                  #                                  .... THEN FALL INTO P62
032688,000141: 

Page 743

032690,000143:                                                                                                  #  PROGRAM-             P62
032691,000144:                                                                                                  #  MOD NO.-             0    MAR. 13, 1967
032692,000145:                                                                                                  #  MOD BY-              R. HIRSCHKOP
032693,000146:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER      DATE: 21 MAR 67
032694,000147:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:  22 JUN 67     RESTARTS.
032695,000148:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP CHANGES.
032696,000149:                                                                                                  #  MOD NO:  4           MOD BY:  RR BAIRNSFATHER      DATE:   8 MAY 68     MOVE START OF DESIRED GIMBAL CALC.
032697,000150:                                                                                                  #  FUNCTION-            1) TO NOTIFY CREW WHEN GNC SYSTEM IS PREPARED FOR CM/SM SEPARATION
032698,000151:                                                                                                  #                       2) TO ORIENT THE CM TO THE CORRECT ATTITUDE FOR ATMOSPHERIC ENTRY
032699,000152:                                                                                                  #  CALLING SEQUENCE-    BY V37 OR DIRECTLY FROM P61
032700,000153:                                                                                                  #  EXIT-                TO P63
032701,000154:                                                                                                  #  ERASABLE INITIALIZATION:
032702,000155:                                                                                                  #           ALFAPAD                                       LEFT BY PAD LOAD
032703,000156:                                                                                                  #           LADPAD                                        LEFT BY PAD LOAD
032704,000157:                                                                                                  #           LODPAD                                        LEFT BY PAD LOAD
032705,000158:                                                                                                  #           LAT(SPL)    (MAY BE CHANGED BELOW)            LEFT BY DSKY, VIA P61
032706,000159:                                                                                                  #           LNG(SPL)    (MAY BE CHANGED BELOW)            LEFT BY DSKY, VIA P61
032707,000160:                                                                                                  #           HEADSUP     (MAY BE CHANGED BELOW)            LEFT BY DSKY, VIA P61
032708,000161:                                                                                                  #  SUBROUTINE CALLS:    NEWMODEX , S61.1 , CM/DAPIC , CM/DAPON , R02BOTH , GOPERF1 , GOFLASH , GODSPR
032709,000162: 
032710,000163: 26,2314                                           COUNT*   $$/P62                                
032711,000164: 
032712,000165: 26,2314           05243                           TC       NEWMODEX                              #  MODE CHANGE IF CAME FROM P61.
032713,000166: 26,2315           00076                           MM       62         B-14                       #  MODE CHANGE AUTOMATIC VIA V 37.
032714,000167: 26,2316           34712                           CA       ONE                                   
032715,000168: 26,2317           54332                           TS       DNLSTCOD                              
032716,000169: 
032717,000170: 26,2320           02543        P62                TC       S61.1                                 #  CHECK STATE VECTOR AND IMU ORIENTATION.
032718,000171: 
032719,000172: 26,2321           06006                           TC       INTPRET                               
032720,000173: 26,2322           47131                           SSP      RTB                                   
032721,000174: 26,2323           03325                                    POSEXIT                               
032722,000175: 26,2324           54402                                    P62.3                                 #  CALCULATE DESIRED .05G GIMBAL ANGLES,
032723,000176:                                                                                                  #  WITHOUT DISPLAY.
032724,000177: 26,2325           41630                                    CM/DAPIC                              #  START CM/POSE AND BODY RATE CALC
032725,000178: 
032726,000179:                                                                                                  #  DOES 2PHSCHNG, OCT 40116, OCT 05024, OCT 13000.
032727,000180:                                                                                                  #  CM/DAPIC SETS EBANK = EBAOG
032728,000181: 
032729,000182:                                                                                                  #  AND RETURNS IN BASIC TO P62.2.                                
032730,000183: 26,2326           00006        P62.2              EXTEND                                         
032731,000184: 26,2327           32431                           DCA      POSECADR                              #  CONTINUE WITH CM/POSE AFTER AV G.
032732,000185: 26,2330           53223                           DXCH     AVEGEXIT                              
032733,000186: 
032734,000187: 26,2331           34270                           CAF      OCT41                                 #  REQUEST SEPARATION
032735,000188: 26,2332           04555                           TC       BANKCALL                              
032736,000189: 26,2333           21031                           CADR     GOPERF1R                              
032737,000190: 26,2334           04106                           TC       GOTOPOOH                              
032738,000191: 26,2335           02340                           TC       +3                                    #  PROCEED
032739,000192: 

Page 744

032741,000194:                                                                                                  #                                                               NOTE:  NODOFLAG WILL BE SET IN CM/DAPON. <<<
032742,000195: 26,2336           02331                           TC       -5                                    #  ENTER
032743,000196: 26,2337           02232                           TC       P61.3                                 #  FOR PHASCHNG AND ENDOFJOB.
032744,000197: 
032745,000198: 26,2340           04574                 +3        TC       POSTJUMP                              
032746,000199: 26,2341           41550                           CADR     CM/DAPON                              #  DISABLE RCS DAP, ENABLE ENTRY DAP AND
032747,000200:                                                                                                  #                                          DO ATTITUDE HOLD.
032748,000201: 
032749,000202:                                                                                                  #                               WILL IDLE UNTIL CM/POSE DOES ONE UPDATE.
032750,000203:                                                                                                  #                               CM/DAPON DOES NO PHASCHNG.
032751,000204: 
032752,000205: 
032753,000206: 26,2342           32424        P62.1              CA       V06N61                                #  LAT(SPL)     LNG(SPL)      HEADSUP
032754,000207:                                                                                                  #  XXX.XX DEG   XXX.XX DEG    0000X.
032755,000208: 
032756,000209:                                                                                                  #                                  TERMINATE  ATTITUDE HOLD. SET UP COMMANDS:
032757,000210:                                                                                                  #                                  ROLLC,  ALFACOM,  BETACOM.   BEGIN MANUVER TO
032758,000211:                                                                                                  #                                  ENTRY ATTITUDE.
032759,000212: 
032760,000213: 26,2343           04555                           TC       BANKCALL                              
032761,000214: 26,2344           20624                           CADR     GOFLASH                               
032762,000215: 26,2345           02342                           TC       -3                                    
032763,000216: 26,2346           02350                           TC       +2                                    
032764,000217: 26,2347           02342                           TC       -5                                    
032765,000218: 
032766,000219: 26,2350           05301                           TC       PHASCHNG                              
032767,000220: 26,2351           04024                           OCT      04024                                 #  USE ENTRYVN FOR DISPLAY BELOW.
032768,000221: 
032769,000222:                                                                                                  #                                          EBANK WAS SET IN CM/DAPON TO EBAOG
032770,000223: 
032771,000224: 26,2352           11726                           CCS      HEADSUP                               #  C(HEADSUP) = +/- 1
032772,000225: 26,2353           34675                           CA       BIT14                                 #  IF HEADSUP POS,ROLLC=180 DEG (LIFT DWN)
032773,000226: 26,2354           12355                           NOOP                                           #  IF HEADSUP NEG,ROLLC=0 DEG  (LIFT UP)
032774,000227: 26,2355           55715                           TS       ROLLC                                 
032775,000228: 26,2356           31411                           CA       ALFAPAD                               #  NOMINAL ALFATRIM PAD LOADED, NEG. NO.
032776,000229: 26,2357           22007                           ZL                                             
032777,000230: 26,2360           53604                           DXCH     ALFACOM                               #  SET ALFACOM = ALFA TRIM, BETACOM=0
032778,000231: 
032779,000232: 26,2361           34712                           CA       ONE                                   #  PERMITS EXDAP2 TO CHANGE FLAG TO +0
032780,000233: 26,2362           55727                           TS       P63FLAG                               #  AS INDICATOR. STARTS UP P63.
032781,000234: 
032782,000235: 26,2363           34745                           CA       V06N22                                #  SET UP DISPLAY FOR CDU DESIRED VALUES
032783,000236: 26,2364           55263                           TS       ENTRYVN                               #  FROM ENTRY ATTITUDE CALC, THAT IS
032784,000237:                                                                                                  #                                          ALREADY GOING.
032785,000238: 26,2365           05435                           TC       UPFLAG                                #  TURN ON ENTRY DISPLAY
032786,000239: 26,2366           00134                           ADRES    ENTRYDSP                              #  ENTRYDSP = 92D  BIT 13  FLAG 6
032787,000240:                                                                                                  #  SKIP
032788,000241: 

Page 745

032790,000243: 26,2367           41700                           CS       CMDAPMOD                              #  GO DIRECTLY TO P63 IF BODY ATTITUDE
032791,000244: 26,2370           74712                           MASK     ONE                                   #  IS SUCH THAT THE DELAY TASK: WAKEP62
032792,000245: 26,2371           00006                           EXTEND                                         #  WILL BE OMITTED.
032793,000246: 26,2372           12420                           BZF      P63.1                                 #  DISABLE GRP 4, GO TO ENDOFJOB.
032794,000247: 
032795,000248:                                                                                                  #                                          (IE, CONTINUE IF CMDAPMOD = -1, OR +0)
032796,000249: 26,2373           02406                           TC       P63                                   
032797,000250: 
032798,000251:                                                                                                  #                                  PUT JOB TO SLEEP UNTIL VEHICLE MANUVER HAS
032799,000252:                                                                                                  #                                  REDUCED ALFA TO +/-45 DEG. CONSIDER REMAINING
032800,000253:                                                                                                  #                                  65 DEG (25 DEG IF ALFA NEG) TO ALFA TRIM TO
032801,000254:                                                                                                  #                                  OCCUR AT 3 DEG/SEC, AND TERMINATE P62 AT THAT
032802,000255:                                                                                                  #                                  TIME.
032803,000256:                                                                                                  #                                  TASK WAKEP62 IS CALLED FROM ENTRY DAP.
032804,000257: 
032805,000258: 26,2374           34760        WAKEP62            CA       PRIO13                                
032806,000259: 26,2375           05027                           TC       NOVAC                                 
032807,000260: 26,2376  E6,1661                                  EBANK=   AOG                                   
032808,000261: 26,2376           02406 54066                     2CADR    P63                                   
032809,000262: 26,2400           05213                           TC       TASKOVER                              
032810,000263: 
032811,000264: 26,2401           54402        P62.3CAD           CADR     P62.3                                 
032812,000265: 
032813,000266:                                                                                                  #                               EACH 2 SEC, CALCULATE GIMBAL ANGLES FOR ENTRY CON-
032814,000267:                                                                                                  #                               DITIONS THAT WILL HOLD IF REORIENTATION WERE MADE
032815,000268:                                                                                                  #                               AT PRESENT RN, VN. COME HERE FROM CM/POSE AND ALSO
032816,000269:                                                                                                  #                               IN KEPLER PHASE OF ENTRY.
032817,000270: 26,2402           52131        P62.3              SSP      GOTO                                  #  SET RETURN ADDRESS SO THAT   ROUTINE
032818,000271: 26,2403           00053                                    QPRET                                 #  GOES DIRECTLY TO ENTRY GUIDANCE EXIT
032819,000272: 26,2404           53570                                    ENDEXIT                               #  THAT DOES ENTRY DISPLAY ,GRP 5.
032820,000273: 26,2405           20302                                    S62.3                                 #   PUT DESIRED CDU VALUES IN CPHI'S FOR
032821,000274:                                                                                                  #  N22 DISPLAY.
032822,000275: 

Page 746

032824,000277:                                                                                                  #           P63
032825,000278:                                                                                                  #  PROGRAM-             P63
032826,000279:                                                                                                  #  MOD NO.-             0    MAR. 13, 1967
032827,000280:                                                                                                  #  MOD BY-              R. HIRSCHKOP
032828,000281:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER      DATE:  22 JIN 67     RESTARTS.
032829,000282:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:  14 JUL 67     REVISED RESTARTS
032830,000283:                                                                                                  #  FUNCTION-            1) TO INITIALIZE THE ENTRY EQUATIONS
032831,000284:                                                                                                  #                       2) TO CONTINUE TO HOLD THE CM TO THE CORRECT ATTITUDE WITH RESPECT TO THE ATMOSPHERE FOR
032832,000285:                                                                                                  #                          THE ONSET OF ENTRY DECELERATION. ROLL ANGLE IS LIFT UP/DOWN AS SPECIFIED BY HEADSUP.
032833,000286:                                                                                                  #                       3) TO SENSE .05 G
032834,000287:                                                                                                  #  CALLING SEQUENCE-    DIRECTLY FROM P62
032835,000288:                                                                                                  #  EXIT-                TO ENDOFJOB
032836,000289:                                                                                                  #  SUBROUTINE CALLS-    NEWMODEX , GODSPR
032837,000290: 
032838,000291: 26,2406                                           COUNT*   $$/P63                                
032839,000292: 
032840,000293: 26,2406           05243        P63                TC       NEWMODEX                              
032841,000294: 26,2407           00077                           MM       63         B-14                       
032842,000295: 
032843,000296: 26,2410           04555                           TC       BANKCALL                              #  FLUSH N22 DISPLAY, IF ON.  (ONIT DISP
032844,000297: 26,2411           20607                           CADR     CLEANDSP                              #  DURING STARTENT PASS.)
032845,000298: 
032846,000299:                                                                                                  #                                          ARRIVE WITH EBANK = AOG.
032847,000300: 
032848,000301: 26,2412           32427                           CA       ENTCADR                               #  CONTINUE AT STARTENT AFTER CM/POSE .
032849,000302: 
032850,000303:                                                                                                  #                                  AT END OF STARTENT, CHANGE ADDRESS IN GOTOADDR
032851,000304:                                                                                                  #                                  TO CONTINUE AT  SCALEPOP  THEREAFTER.
032852,000305: 
032853,000306: 26,2413           55724                           TS       POSEXIT                               
032854,000307: 
032855,000308: 26,2414           32426                           CA       V06N64                                #  G            VI            R TO SPLSH
032856,000309:                                                                                                  #                                          XXX.XX G     XXXXX. FPS    XXXX.X NM
032857,000310: 26,2415           55263                           TS       ENTRYVN                               #  FOR DISPLAY CALL IN OVERNOUT.
032858,000311: 
032859,000312: 26,2416           44712                           CS       ONE                                   #  IN CASE FLAG IS LEFT AT +1 BY DAP. THE
032860,000313: 26,2417           55727                           TS       P63FLAG                               #  -1 ASSURES THAT EXO-ATM DAP WILL NOT
032861,000314:                                                                                                  #                                          CALL P63 OUT OF SEQUENCE IN P66 .
032862,000315: 
032863,000316: 26,2420           05301        P63.1              TC       PHASCHNG                              
032864,000317: 26,2421           00004                           OCT      00004                                 #  DISABLE. DISPLAY RESTARTED VIA ENTRY.
032865,000318: 
032866,000319: 26,2422           05112                           TC       ENDOFJOB                              
032867,000320: 
032868,000321: 26,2423           01474        V06N60             VN       0660                                  
032869,000322: 26,2424           01475        V06N61             VN       0661                                  
032870,000323: 26,2425           01477        V06N63             VN       0663                                  
032871,000324: 26,2426           01500        V06N64             VN       0664                                  
032872,000325: 26,2427           52000        ENTCADR            CADR     STARTENT                              

Page 747

032874,000327: 26,2430  E7,1451                                  EBANK=   RTINIT                                #  TO CARY OVER INTO ENTRY STEERING.
032875,000328: 26,2430           03375 76067  POSECADR           2CADR    CM/POSE                               
032876,000329: 

Page 748

032878,000331:                                                                                                  #  PROGRAM-             P64
032879,000332:                                                                                                  #  MOD NO.-             1     SEPT. 19, 1967
032880,000333:                                                                                                  #  MOD BY-              R. HIRSCHKOP
032881,000334:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:   8 MAY 68     REVISED COMMENTS FOR COLOSSUS
032882,000335:                                                                                                  #  FUNCTION-            1.  TO START ENTRY GUIDANCE AT .05G SELECTING ROLL  ATTITUDE, CONSTANT DRAG LEVEL, AND
032883,000336:                                                                                                  #                       DRAG THRESHOLD,  KA  , WHICH ARE KEYED TO THE .05G POINT.
032884,000337:                                                                                                  #                       2.  SELECT FINAL PHASE P67 IF V < 27000 FPS WHEN .2G OCCURS.
032885,000338:                                                                                                  #                       3.  ITERATE FOR UP-CONTROL SOLUTION  P65  IF V > 27000 FPS AND IF ALTITUDE RATE AND DRAG
032886,000339:                                                                                                  #                       LEVEL CONDITIONS ARE SATISFIED. ENTER P65 WHEN CONSTANT DRAG CONTROLLER HAS BROUGHT RANGE
032887,000340:                                                                                                  #                       AS PREDICTED TO WITHIN 25 NM OF DESIRED RANGE.
032888,000341:                                                                                                  #                       4.  SELECT FINAL PHASE  P67  IF NO UP-CONTROL SOLUTION EXISTS WITH VL > 18000 FPS.
032889,000342:                                                                                                  #  CALLING SEQUENCE-    BY RTB FROM REENTRY CONTROL
032890,000343:                                                                                                  #  EXIT-                BACK TO REENTRY CONTROL
032891,000344:                                                                                                  #  SUBROUTINE CALLS-    NEWMODEX
032892,000345: 
032893,000346: 
032894,000347: 26,2432                                           BANK     26                                    
032895,000348: 26,2000                                           SETLOC   P60S1                                 
032896,000349: 26,2000                                           BANK                                           
032897,000350: 
032898,000351:                                                                                                  #           THIS DISPLAY IS CALLED EACH PASS THROUGH STEERING. RESTART PROTECTION IS VIA STEERING.
032899,000352: 
032900,000353: 26,2432                                           COUNT*   $$/P64                                
032901,000354: 
032902,000355: 26,2432           05243        P64                TC       NEWMODEX                              #  ENTER VIA RTB WHEN .05G IS EXCEEDED.
032903,000356: 26,2433           00100                           MM       64         B-14                       
032904,000357: 26,2434           32437                           CA       V06N68                                #  ROLLC        VI            HDOT
032905,000358:                                                                                                  #                                          XXX.XX DEG   XXXXX. FPS    XXXXX. FPS
032906,000359: 26,2435           55263                           TS       ENTRYVN                               #  DISPLAY VIA OVERNOUT.
032907,000360: 
032908,000361: 26,2436           06030                           TC       DANZIG                                #  ... AND CONTINUE IN INITROLL ...
032909,000362: 
032910,000363: 
032911,000364: 26,2437           01504        V06N68             VN       0668                                  
032912,000365: 

Page 749

032914,000367:                                                                                                  #  PROGRAM:             P65
032915,000368:                                                                                                  #  MOD NO:  0           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP ADDITION.
032916,000369:                                                                                                  #  FUNCTION:            TO CONTINUE ENTRY GUIDANCE, USING THE UP-CONTROL PHASE TO STEER TO A CONTROLLED EXIT
032917,000370:                                                                                                  #                       CONDITION. THIS PHASE TERMINATES  A) IF D  < Q7 FPSS, GO TO P66   ,
032918,000371:                                                                                                  #                                                         B) IF RDOT NEG, AND IF V < VL +500 FPS, GO TO P67.
032919,000372:                                                                                                  #  CALLING SEQUENCE:    BY RTB FROM REENTRY CONTROL
032920,000373:                                                                                                  #  EXIT:                BACK TO REENTRY CONTROL, OR TO ENDOFJOB.
032921,000374:                                                                                                  #  SUBROUTINE CALLS:    NEWMODEX
032922,000375: 
032923,000376: 26,2440                                           COUNT*   $$/P65                                
032924,000377: 
032925,000378: 26,2440           05243        P65                TC       NEWMODEX                              #  ENTER VIA RTB WHEN RANGE < 25 N M OF
032926,000379: 26,2441           00101                           MM       65         B-14                       #  TARGET.
032927,000380: 
032928,000381: 26,2442           34760                           CA       PRIO13                                
032929,000382: 26,2443           05027                           TC       NOVAC                                 
032930,000383: 26,2444     1263                                  EBANK=   ENTRYVN                               
032931,000384: 26,2444           02456 54062                     2CADR    P65.1                                 
032932,000385: 26,2446           05261                           TC       2PHSCHNG                              #  2 PHASE CHG REQUIRED TO PREVENT RE-
032933,000386: 26,2447           00554                           OCT      00554                                 #  STARTING FLASHING DISPLAY TWICE.
032934,000387: 26,2450           10035                           OCT      10035                                 #  4.55 SPOT AND SERVICER, HERE.
032935,000388: 26,2451           06006                           TC       INTPRET                               
032936,000389: 26,2452           47131                           SSP      RTB                                   
032937,000390: 26,2453           03646                                    GOTOADDR                              #  CHANGE ENTRY MODE TO UPCONTRL.
032938,000391: 26,2454           53027                                    UPCONTRL                              
032939,000392: 26,2455           52120                                    REFAZE10                              #  GO HERE TO REESTABLISH ENTRY SEQUENCER.
032940,000393:                                                                                                  #                                          AND CONTINUE AT UPCONTRL...
032941,000394: 
032942,000395: 26,2456           05447        P65.1              TC       DOWNFLAG                              
032943,000396: 26,2457           00134                           ADRES    ENTRYDSP                              #  ENTRYDSP = 92D  BIT 13 FLAG 6
032944,000397: 
032945,000398: 26,2460           32472                           CA       V16N69                                #  ROLLC        DL  (Q7)      VL
032946,000399: 26,2461           04555                           TC       BANKCALL                              #  XXX.XX DEG   XXX.XX G      XXXXX. FPS
032947,000400: 26,2462           20763                           CADR     GOFLASHR                              
032948,000401: 26,2463           02460                           TC       -3                                    #  NODOFLAG IS SET..
032949,000402: 26,2464           02467                           TC       +3                                    
032950,000403: 26,2465           02460                           TC       -5                                    
032951,000404: 26,2466           02232                           TC       P61.3                                 #  EST. GRP 4 FOR DSPLAY AND DO ENDOFJOB
032952,000405:                                                                                                  #                                          IF PROCEED, CONTINUE.
032953,000406: 26,2467           05435                           TC       UPFLAG                                
032954,000407: 26,2470           00134                           ADRES    ENTRYDSP                              #  ENTRYDSP = 92D   BIT 13 FLAG 6
032955,000408: 
032956,000409: 26,2471           02420                           TC       P63.1                                 #  DISABLE GRP 4,START UP ENTRY DISPLAY
032957,000410: 
032958,000411:                                                                                                  #                                          N06V68 VIA OVERNOUT, AS USED IN P64.
032959,000412: 
032960,000413: 26,2472           04105        V16N69             VN       1669                                  
032961,000414: 

Page 750

032963,000416:                                                                                                  #  PROGRAM:             P66
032964,000417:                                                                                                  #  MOD NO:  0           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP ADDITIONS.
032965,000418:                                                                                                  #  FUNCTION:            KEEP CM ATTITUDE IN TRIM TO THE RELATIVE VELOCITY VECTOR. ENTRY GUIDANCE STOPS GENERATING
032966,000419:                                                                                                  #                       ROLL COMMANDS UNTIL DRAG BUILDS UP TO  Q7+0.5 FPSS.
032967,000420: 
032968,000421:                                                                                                  #  CALLING SEQUENCE:    VIA RTB FROM REENTRY CONTROL.
032969,000422:                                                                                                  #  EXIT:                BACK TO REENTRY CONTROL.
032970,000423:                                                                                                  #  SUBROUTINE CALLS:    NEWMODEX
032971,000424: 
032972,000425: 26,2473                                           COUNT*   $$/P66                                
032973,000426: 
032974,000427: 26,2473           05243        P66                TC       NEWMODEX                              #  ENTER VIA RTB WHEN D < Q7 FPSS
032975,000428: 26,2474           00102                           MM       66         B-14                       
032976,000429: 
032977,000430: 26,2475           34745                           CA       V06N22                                #  OGA          IGA           MGA
032978,000431:                                                                                                  #  XXX.XX DEG   XXX.XX DEG    XXX.XX DEG
032979,000432: 26,2476           02502                           TC       P66END                                #  IN CASE CAME FROM P65, GO DISABLE GRP4,
032980,000433:                                                                                                  #                                          AND SET ENTRYDSP TO DO DISPLAY VIA
032981,000434:                                                                                                  #                                          OVERNOUT.
032982,000435:                                                                                                  #                                          ... AND CONTINUE AT KEP2 
032983,000436: 

Page 751

032985,000438:                                                                                                  #  P67
032986,000439: 
032987,000440:                                                                                                  #  PROGRAM-      P67
032988,000441:                                                                                                  #  MOD NO.-      0       MAR. 16, 1967
032989,000442:                                                                                                  #  MOD BY-       R. HIRSCHKOP
032990,000443:                                                                                                  #  FUNCTION-     TO TERMINATE STEERING WHEN THE CM VELOCITY WRT EARTH = 1000 FT/SEC
032991,000444:                                                                                                  #  CALLING SEQUENCE-
032992,000445:                                                                                                  #  EXIT-         TO POOH
032993,000446:                                                                                                  #  SUBROUTINE CALLS-  GOFLASH
032994,000447: 
032995,000448:                                                                                                  #  THIS DISPLAY IS CALLED EACH PASS THROUGH STEERING.  RESTART PROTECTION IS VIA STEERING.
032996,000449: 
032997,000450: 26,2477                                           COUNT*   $$/P67                                
032998,000451: 
032999,000452: 26,2477           05243        P67                TC       NEWMODEX                              #  ENTER VIA RTB
033000,000453: 26,2500           00103                           MM       67         B-14                       
033001,000454: 26,2501           32510                           CA       V06N66                                #  ROLLC         XRNGERR         DNRNGERR
033002,000455:                                                                                                  #  XXX.XX DEG    XXXX.X NM       XXXX.X NM
033003,000456: 26,2502           55263        P66END             TS       ENTRYVN                               #  DISPLAY VIA OVERNOUT.
033004,000457: 
033005,000458: 26,2503           05435                           TC       UPFLAG                                #  (IN CASE CAME FROM P65. ENTRY DISPLAY
033006,000459: 26,2504           00134                           ADRES    ENTRYDSP                              #  WILL FLUSH FLASHING DISP. IF STILL ON)
033007,000460:                                                                                                  #                                          BIT 13 FLAG 6
033008,000461: 26,2505           05301        KILLGRP4           TC       PHASCHNG                              #  DISABLE GRP4, IN CASE CAME FROM HUNTEST.
033009,000462: 26,2506           00004                           OCT      00004                                 #  (COME TO KILLGRP4 VIA RTB,RET TO CALLER)
033010,000463: 
033011,000464: 26,2507           06030                           TC       DANZIG                                #  ... AND CONTINUE AT PREDICT3 ...
033012,000465: 
033013,000466: 26,2510           01502        V06N66             VN       0666                                  
033014,000467: 
033015,000468: 26,2511                                           BANK     26                                    
033016,000469: 26,2000                                           SETLOC   P60S2                                 
033017,000470: 26,2000                                           BANK                                           
033018,000471: 
033019,000472: 26,2511           32542        P67.1              CA       V16N67                                #  RTOGO        LAT           LONG
033020,000473:                                                                                                  #  XXXX.X NM    XXX.XX DEG    XXX.XX DEG
033021,000474: 26,2512           04555                           TC       BANKCALL                              
033022,000475: 26,2513           20624                           CADR     GOFLASH                               
033023,000476: 26,2514           02517                           TC       +3                                    #  EFFECTIVE GOTOPOOH
033024,000477: 26,2515           02517                           TC       +2                                    
033025,000478: 26,2516           02511                           TC       P67.1                                 #  REDO
033026,000479: 
033027,000480: 26,2517           46214                           CS       THREE                                 #  TURN OFF ENTRY DAP
033028,000481: 26,2520           00004                           INHINT                                         
033029,000482: 26,2521           70102                           MASK     CM/FLAGS                              #  CM/DSTBY , GAMDIFSW
033030,000483: 26,2522           54102                           TS       CM/FLAGS                              
033031,000484: 26,2523           00003                           RELINT                                         
033032,000485: 26,2524           00006                           EXTEND                                         
033033,000486: 26,2525           32642                           DCA      SERVCAD2                              

Page 752

033035,000488: 26,2526           53223                           DXCH     AVEGEXIT                              
033036,000489: 26,2527           14106                           TCF      GOTOPOOH                              
033037,000490: 

Page 753

033039,000492: 26,2530           43175        P67.2              VLOAD    CLEAR                                 #  CALC PRESENT LAT, LONG, ALT.
033040,000493: 26,2531           01171                                    RN                                    
033041,000494: 26,2532           00662                                    ERADFLAG                              #  USE PAD RAD FOR ALT.(NOT SEEN ANYWAY)
033042,000495: 26,2533           16152                           STODL    ALPHAV                                
033043,000496: 26,2534           01205                                    PIPTIME                               #  USE TIME OF RN
033044,000497: 26,2535           45014                           CLEAR    CALL                                  
033045,000498: 26,2536           01663                                    LUNAFLAG                              
033046,000499: 26,2537           26322                                    LAT-LONG                              
033047,000500: 26,2540           77634        P67.3              RTB                                            #  ENTRY EXIT THAT OMITS DISPLAY.
033048,000501: 26,2541           53603                                    SERVNOUT                              
033049,000502: 
033050,000503: 26,2542           04103        V16N67             VN       1667                                  
033051,000504: 26,2543     4270               OCT41              =        33DEC                                 
033052,000505: 26,2543  26,2641               SERVCAD2           =        SERVCAD1                              
033053,000506: 

Page 754

033055,000508:                                                                                                  #  SUBROUTINE NAME:     S61.1    
033056,000509:                                                                                                  #  MOD NO:  0                                                              DATE: 21 FEB 67
033057,000510:                                                                                                  #  MOD BY:  RR BAIRNSFATHER                              LOG SECTION:    P61-P67
033058,000511:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER         DATE:           22 JUN 67       RESTARTS.
033059,000512:                                                                                                  #  FUNCTIONAL DESCRIPTION:     CALLED BY BOTH P61 AND P62
033060,000513:                                                                                                  #           FIRST,TEST TO SEE IF   AVERAGEG   IS ON. IF NOT, UPDATE THE STATE VECTOR TO PRESENT TIME + TOLERANCE
033061,000514:                                                                                                  #           AND TURN ON   AVERAGEG   AT THAT TIME, AND CONTINUE.   OTHERWISE CONTINUE:   SEE IF  IMU Y AXIS IS
033062,000515:                                                                                                  #           WITHIN 30 DEG OF V*R.  IF YES, EXIT SUBROUTINE S61.1.    IF NO,  SEE IF -Y AXIS OF IMU IS WITHIN
033063,000516:                                                                                                  #           30 DEG OF V*R.   IF YES, DISPLAY ALARM:  01427   IMU REVERSED.
033064,000517:                                                                                                  #                            IF NO, DISPLAY ALARM:   01426   IMU UNSATISFACTORY.
033065,000518:                                                                                                  #           IN EITHER OF THESE LAST 2 CASES, WAIT  10 SEC  AND THEN EXIT SUBROUTINE  S61.1.
033066,000519: 
033067,000520:                                                                                                  #  REMARK:              THERE WILL BE A SHORT 10 SEC DELAY IF AN ALARM EXIT IS TAKEN. THE DELAY FOR INTEGRATION IS
033068,000521:                                                                                                  #                       AS SHORT AS CAN BE MADE, BUT IS ARBITRARY SINCE IT  DEPENDS ON THE AGE OF THE STATE VECTOR.
033069,000522: 
033070,000523:                                                                                                  #  CALLING SEQUENCE:  CALL
033071,000524:                                                                                                  #                            S61.1
033072,000525:                                                                                                  #                     C(MPAC) UNSPECIFIED
033073,000526:                                                                                                  #                     PUSHLOC UNSPECIFIED
033074,000527: 
033075,000528:                                                                                                  #  SUBROUTINES CALLED:  LOADTIME, CSMPREC, TPAGREE,
033076,000529:                                                                                                  #                       WAITLIST, JOBSLEEP, JOBWAKE, PREREAD, ALARM, GODSPR, BANKCALL, DELAYJOB
033077,000530:                                                                                                  #  NORMAL EXIT MODES:   RVQ
033078,000531:                                                                                                  #  ALARMS:  01426     IMU UNSATISFACTORY
033079,000532:                                                                                                  #           01427     IMU REVERSED
033080,000533:                                                                                                  #  OUTPUT:  POSSIBLE ALARMS
033081,000534:                                                                                                  #           POSSIBLY TDEC1, RATT, VATT, RN, VN
033082,000535:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED:
033083,000536:                                                                                                  #           AVEGFLAG               AVERAGEG ON OR OFF                      LEFT BY SERVICER
033084,000537:                                                                                                  #           PIPTIME  (-28) CS      TIME OF PIPA UPDATE                     LEFT BY READACCS
033085,000538:                                                                                                  #           RN     (-29) M         STATE VECTOR                            LEFT BY AVERAGEG
033086,000539:                                                                                                  #           VN     (-7) M/CS       STATE VECTOR                            LEFT BY AVERAGEG
033087,000540:                                                                                                  #           REFSMMAT  (-1)         .5 REF TO SM MATRIX                     LEFT BY LAST IMU ALIGNMENT
033088,000541:                                                                                                  #  DEBRIS:  QPRET
033089,000542:                                                                                                  #           POSSIBLY PIPTIME1, RATT, VATT, TDEC1, RN1, VN1, QTEMP, X1      IF UPDATED
033090,000543:                                                                                                  #           PUSH LIST LOCS USED BY CSMPREC
033091,000544: 
033092,000545: 26,2543  E6,1661                                  EBANK=   AOG                                   #  FOR 60GENRET , S61DT
033093,000546: 26,2543                                           BANK     26                                    
033094,000547: 26,2000                                           SETLOC   P60S3                                 
033095,000548: 26,2000                                           BANK                                           
033096,000549: 
033097,000550: 26,2543                                           COUNT*   $$/S61.1                              
033098,000551: 
033099,000552: 26,2543           00006        S61.1              EXTEND                                         
033100,000553: 26,2544           23773                           QXCH     60GENRET                              #  SAVE RET ADDR IN EB 6
033101,000554: 26,2545           04555                           TC       BANKCALL                              
033102,000555: 26,2546           17573                           CADR     R02BOTH                               
033103,000556: 26,2547           06006                           TC       INTPRET                               

Page 755

033105,000558: 26,2550           45014                           BON      CALRB                                 
033106,000559: 26,2551           00716                                    AVEGFLAG                              #  IS AVERAGEG ON
033107,000560: 26,2552           54603                                    S61.1A                                #  YES
033108,000561: 26,2553           27570                                    MIDTOAV2                              #  GET FUTURE STATE VECTOR SOON AS CAN
033109,000562: 
033110,000563: 26,2554           30155                           CA       MPAC       +1                         #  RETURN INHINTED ***
033111,000564: 26,2555           55774                           TS       S61DT                                 #  FOR RESTART.
033112,000565: 26,2556           05140                           TC       WAITLIST                              
033113,000566: 26,2557  E7,1431                                  EBANK=   DVCNTR                                
033114,000567: 26,2557           02564 54067                     2CADR    S61.1C                                
033115,000568: 26,2561           05301                           TC       PHASCHNG                              
033116,000569: 26,2562           40434                           OCT      40434                                 
033117,000570: 26,2563           05112                           TC       ENDOFJOB                              
033118,000571: 
033119,000572: 26,2564           34760        S61.1C             CA       PRIO13                                
033120,000573: 26,2565           05042                           TC       FINDVAC                               
033121,000574: 26,2566  E6,1661                                  EBANK=   AOG                                   
033122,000575: 26,2566           02602 54066                     2CADR    S61.1A     -1                         
033123,000576: 
033124,000577: 26,2570           00006                           EXTEND                                         
033125,000578: 26,2571           32642                           DCA      SERVCAD1                              #  HE WHO STARTS AVERAGEG MUST SERVICE
033126,000579: 26,2572           53223                           DXCH     AVEGEXIT                              #  THE EXIT.
033127,000580: 
033128,000581: 26,2573           05261                           TC       2PHSCHNG                              
033129,000582: 26,2574           00454                           OCT      00454                                 
033130,000583: 26,2575           00415                           OCT      00415                                 
033131,000584: 
033132,000585: 26,2576           34753                           CA       EBENTRY                               #  SET EB= 7 FOR PREREAD.
033133,000586: 26,2577           54003                           TS       EBANK                                 
033134,000587: 
033135,000588: 26,2600           04574                           TC       POSTJUMP                              
033136,000589: 26,2601           76604                           CADR     PREREAD                               #  PREREAD DOES TC TASKOVER.
033137,000590: 
033138,000591: 26,2602           06006                           TC       INTPRET                               
033139,000592: 26,2603           77204        S61.1A             BOVB     VLOAD                                 
033140,000593: 26,2604           57314                                    TCDANZIG                              #  TURN OFF OVFIND, IF ON
033141,000594: 26,2605           01177                                    VN                                    #  VN   (-7) M/CS
033142,000595: 26,2606           64235                           VXV      MXV                                   
033143,000596: 26,2607           01171                                    RN                                    #  RN  (-29)  M
033144,000597: 26,2610           01736                                    REFSMMAT                              #  .5 UNIT MATRIX
033145,000598: 26,2611           71256                           UNIT     DLOAD                                 
033146,000599: 26,2612           00160                                    MPAC       +3                         #  GET  COS(THETA)/2
033147,000600: 26,2613           43240                           BMN      DAD                                   
033148,000601: 26,2614           54621                                    S61.1B                                #  DO TEST ON -YSM
033149,000602: 26,2615           14644                                    C(30)LIM                              #  = 1.0 -.5 COS(30)
033150,000603: 26,2616           47004                           BOVB     RTB                                   
033151,000604: 26,2617           54640                                    RETRN1                                
033152,000605: 26,2620           54625                                    RETRN3                                

Page 756

033154,000607: 26,2621           43276        S61.1B             DCOMP    DAD                                   
033155,000608: 26,2622           14644                                    C(30)LIM                              #  = 1.0- .5 COS(30)
033156,000609: 26,2623           77404                           BOVB     EXIT                                  
033157,000610: 26,2624           54630                                    RETRN2                                
033158,000611: 
033159,000612: 26,2625           05537        RETRN3             TC       ALARM                                 
033160,000613: 26,2626           01426                           OCT      01426                                 #  IMU UNSATISFACTORY
033161,000614: 26,2627           02632                           TC       RETRN2     +2                         
033162,000615: 
033163,000616: 26,2630           05537        RETRN2             TC       ALARM                                 
033164,000617: 26,2631           01427                           OCT      01427                                 #  IMU REVERSED
033165,000618: 
033166,000619: 26,2632           34743                 +2        CAF      V05N09                                
033167,000620: 26,2633           04555                           TC       BANKCALL                              
033168,000621: 26,2634           20602                           CADR     GODSPR                                #  DO DISPLAY
033169,000622: 26,2635           32645                           CA       10SECS                                
033170,000623: 26,2636           04555                           TC       BANKCALL                              
033171,000624: 26,2637           01730                           CADR     DELAYJOB                              
033172,000625: 
033173,000626: 26,2640           01773        RETRN1             TC       60GENRET                              
033174,000627: 
033175,000628: 26,2641  E7,1431                                  EBANK=   DVCNTR                                
033176,000629: 26,2641           03136 76067  SERVCAD1           2CADR    SERVEXIT                              
033177,000630: 26,2643           22111 17335  C(30)LIM           2DEC     .566985                               #  = 1.0 - .5 COS(30)
033178,000631: 26,2645           01750        10SECS             DEC      1000       B-14                       #  1000 CS
033179,000632: 26,2646           00000 13560  60SECDP            2DEC     6000       B-28                       #  6000 CS
033180,000633: 

Page 757

033182,000635:                                                                                                  #  PROGRAM NAME:      S61.2                                                DATE:           14 FEB 67
033183,000636:                                                                                                  #  MOD NO:  1                                                              LOG SECTION:    P61-P67
033184,000637:                                                                                                  #  MOD BY:  MORTH / BAIRNSFATHER
033185,000638:                                                                                                  #  MOD NO:  2           MOD BY:  MORTH/BAIRNSFATHER   DATE:  11 MAY 67     ADD 2ND ITER FOR ERAD AT 400K FT.
033186,000639:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:  21 NOV 67     VARIABLE MU ADDED.
033187,000640:                                                                                                  #  MOD NO:  4           MOD BY:  RR BAIRNSFATHER      DATE:  21 MAR 68     DIFFERENT EARTH/MOON SCALES IN TFF'S
033188,000641:                                                                                                  #  FUNCTIONAL DESCRIPTION:      CALLED BY P61.  PROVIDES DISPLAYS FOR NOUNS  N60  AND  N63  .
033189,000642:                                                                                                  #           PROGRAM CALCULATES ENTRY DISPLAY OF MAXIMUM ACCELERATION EXPECTED  (GMAX)  AND ALSO THE EXPECTED
033190,000643:                                                                                                  #           INERTIAL VELOCITY (VPRED) AND ENTRY ANGLE   (GAMMAEI)   THAT WILL OBTAIN AT 400K FT ABOVE THE FISCHER
033191,000644:                                                                                                  #           ELLIPSOID.   PROGRAM ALSO CALCULATES A SECOND DISPLAY RELATIVE  TO THE EMSALT  ABOVE FISCHER ELLIPSOID
033192,000645:                                                                                                  #           AND CONSISTS OF RANGE TO SPLASH FROM NOW (RTGO) , PREDICTED INERTIAL VELOCITY (VIO) , AND THE TIME TO
033193,000646:                                                                                                  #           GO FROM NOW (TTE) .
033194,000647:                                                                                                  #  CALLING SEQUENCE:  CALL
033195,000648:                                                                                                  #                            S61.2
033196,000649:                                                                                                  #           C(MPAC) UNSPECIFIED
033197,000650:                                                                                                  #           PUSHLOC WILL BE SET TO ZERO.
033198,000651: 
033199,000652:                                                                                                  #  SUBROUTINES CALLED:  TFFCONIC,  CALCTFF,  TFF/TRIG,  FISHCALC,  GETERAD,  VGAMCALC
033200,000653:                                                                                                  #  NORMAL EXIT MODES:    RTB  P61.1
033201,000654:                                                                                                  #  ALARMS:  NONE
033202,000655:                                                                                                  #  OUTPUT:  THE FOLLOWING REGISTERS ARE WRITTEN IN FOR USE BY DISPLAYS
033203,000656:                                                                                                  #           GMAX   100 GMAX  (-14)  G,S     MAXIMUM ACCELERATION
033204,000657:                                                                                                  #           VPRED  (-7)  M/CS      PREDICTED VELOCITY AT 400K FT
033205,000658:                                                                                                  #           GAMMAEI  GAMMA/360     PREDICTED GAMMA    AT 400K FT
033206,000659:                                                                                                  #                                  FOR TM, DP(GAMMAEI) = (GAMMAEI, RTGO) / 360
033207,000660:                                                                                                  #           RTGO   THETAH/360      RANGE ANGLE TO SPLASH FROM EMSALT       EMSALT IS PAD LOADED
033208,000661:                                                                                                  #           VIO    (-7) M/CS       INERTIAL VELOCITY AT       EMSALT       EMSALT IS PAD LOADED
033209,000662:                                                                                                  #           TTE    (-28) CS        TIME TO                    EMSALT       EMSALT IS PAD LOADED
033210,000663: 
033211,000664:                                                                                                  #           PUSHLOC = 0
033212,000665:                                                                                                  #           CONIC PARAMETERS STORED IN VAC AREA (SEE TFF SUBROUTINES)
033213,000666:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED:
033214,000667:                                                                                                  #           RONE   (-29) M         STATE VECTOR                            LEFT BY USER
033215,000668:                                                                                                  #           VONE   (-7)  M/CS      STATE VECTOR                            LEFT BY USER
033216,000669:                                                                                                  #           URONE  UR/2                                                    LEFT BY USER
033217,000670:                                                                                                  #           UNI    (-1)            UNIT NORMAL V*R                         LEFT BY ENTRY / P61
033218,000671:                                                                                                  #           THETAH  THETAH/360     RANGE ANGLE                             LEFT BY ENTRY / P61
033219,000672:                                                                                                  #           UNITW  (0)             UNIT POLAR VECTOR                       LEFT BY  PAD LOAD
033220,000673:                                                                                                  #           EMSALT  (-29) M        EMS INTERFACE ALTITUDE                  LEFT BY  PAD LOAD
033221,000674:                                                                                                  #                                  ORBITAL REENTRY:  284643 FT, LUNAR REENTRY:  297431 FT.
033222,000675:                                                                                                  #  DEBRIS:  QPRET,
033223,000676:                                                                                                  #           ALL PDL LOCATIONS ABOVE 12D, INCLUDING X1,X2,S1,S2
033224,000677:                                                                                                  #           ALSO PDL+0 ... PDL+5, WHERE INITIAL PUSHLOC = PDL
033225,000678: 

Page 758

033227,000680: 
033228,000681: 
033229,000682:                                                                                                  #  THE FOLLOWING PUSH LIST LOCATIONS HAVE BEEN RESERVED FOR TFF ROUTINES AND ARE REPEATED HERE FOR CONVENIENCE.
033230,000683: 
033231,000684:                                                                                                  #  OF COURSE  FOR S61.2 USAGE, EARTH ORIGIN SCALING IS USED.
033232,000685: 
033233,000686:                                                                                                  #                                                               BELOW      E:   IS USED FOR EARTH ORIGIN SCALE
033234,000687:                                                                                                  #                                                                          M:   IS USED FOR MOON ORIGIN SCALE
033235,000688: 
033236,000689:                                                                                                  #                                          RTERM    =      18D             TERMINAL RADIUS M  E: (-29)  M: (-27)
033237,000690:                                                                                                  #                                          NRTERM   =      16D             TERMINAL RADIUS M  E: (-29+NR)
033238,000691:                                                                                                  #                                                                                             M: (-27+NR)
033239,000692:                                                                                                  #                                          RMAG1    =      12D             PRESENT RADIUS M   E: (-29)  M: (-27)
033240,000693:                                                                                                  #                                          NRMAG    =      32D             PRESENT RADIUS M   E: (-29+NR)
033241,000694:                                                                                                  #                                                                                             M: (-27+NR)
033242,000695:                                                                                                  #                                          SDELF/2                         SIN(THETA)  /2
033243,000696:                                                                                                  #                                          CDELF/2  =      14D             COS(THETA) /2
033244,000697:                                                                                                  #                                          TFFX     =      34D             X, ARGUMENT OF SERIES T(X).
033245,000698:                                                                                                  #                                          TFFTEM   =      36D             ARG  FOR TRANSFER ANGLE CALCULATION.
033246,000699:                                                                                                  #                                          TFFNP    =      28D             LC P  M  E: (-38+2NR)   M: (-36+2NR)
033247,000700:                                                                                                  #                                          TFF/RTMU =      30D             1/SQRT(MU)         E: (17)   M: (14)
033248,000701:                                                                                                  #                                          TFFVSQ   =      20D             -(VN.VN/MU)  1/M   E: (20)   M: (18)
033249,000702: 

Page 759

033251,000704: 34,3654                                           BANK     34                                    
033252,000705: 26,2000                                           SETLOC   P60S2                                 
033253,000706: 26,2000                                           BANK                                           
033254,000707: 
033255,000708: 26,2650                                           COUNT*   $$/S61.2                              
033256,000709: 
033257,000710:                                                                                                  #                                          PDL LEFT AT ZERO BY TARGETNG
033258,000711: 
033259,000712: 26,2650           45345        S61.2              DLOAD    DSU                                   
033260,000713: 26,2651           02020                                    EMSALT                                
033261,000714: 26,2652           15000                                    290KFT                                
033262,000715: 26,2653           71244                           BPL      DLOAD                                 
033263,000716: 26,2654           54774                                    LUNENT                                
033264,000717: 26,2655           17316                                    1/RTMU                                #  ESTABLISH MU FOR ORBITAL ENTRIES
033265,000718: 26,2656           77624        CALLCON            CALL                                           
033266,000719: 26,2657           56721                                    TFFCONIC                              #  FILL VAC AREA WITH CONIC PARAMETERS
033267,000720: 
033268,000721: 26,2660           45145                           DLOAD    CALL                                  
033269,000722: 26,2661           15020                                    RTRIAL                                #  1ST GUESS AT TERMINAL RADIUS  (-29)
033270,000723: 26,2662           57031                                    CALCTFF                               #  SAVES MPAC IN RTERM  (18D)
033271,000724: 
033272,000725: 26,2663           77624                           CALL                                           #  CALC SDELF/2,  CDELF/2
033273,000726: 26,2664           56573                                    TFF/TRIG                              #  RETURN WITH S(THETA) IN MPAC
033274,000727: 
033275,000728: 26,2665           77624                           CALL                                           #  GET FISCHER RADIUS (-29) M
033276,000729: 26,2666           55027                                    FISHCALC                              #  ANS IN MPAC AND IN ERADM.
033277,000730: 
033278,000731: 26,2667           45015                           DAD      CALL                                  
033279,000732: 26,2670           02020                                    EMSALT                                
033280,000733: 26,2671           57031                                    CALCTFF                               #  SAVES MPAC IN  RTERM  (18D)
033281,000734: 
033282,000735: 26,2672           77676                           DCOMP                                          #  NEGATIVE AS IN COUNTDOWN.
033283,000736: 26,2673           03733                           STORE    TTE1                                  #  DECR TTE FROM BASE TTE1. (RESTART)
033284,000737:                                                                                                  #                                          DNLIST AND DSKY WILL USE TTE.
033285,000738: 26,2674           37727                           STCALL   TTE                                   #  LET MISS CONTRL DECR BY ELAPSED TIME
033286,000739:                                                                                                  #                                          TTE= TIME FROM NOW TO EMSALT +FISCHER
033287,000740: 
033288,000741: 26,2675           56573                                    TFF/TRIG                              #  S(THETA) IN MPAC ON RETURNING
033289,000742:                                                                                                  #                                          AND THETA= RANGE FROM NOW TO EMSALT
033290,000743: 
033291,000744: 26,2676           77624                           CALL                                           
033292,000745: 26,2677           55027                                    FISHCALC                              
033293,000746: 26,2700           77624                           CALL                                           
033294,000747: 26,2701           56626                                    VRCALC                                
033295,000748: 26,2702           77624                           CALL                                           
033296,000749: 26,2703           56613                                    DISPTARG                              
033297,000750: 26,2704           77624                           CALL                                           
033298,000751: 26,2705           56613                                    DISPTARG                              
033299,000752: 26,2706           37714                           STCALL   RTGO                                  

Page 760

033301,000754: 26,2707           55050                                    VGAMCALC                              
033302,000755: 
033303,000756: 26,2710           77605                           DMP                                            #  MPAC = GAMMA
033304,000757:                                                                                                  #  PDL0 HAS VGAM.
033305,000758: 26,2711           43265                           BDDV     DAD                                   
033306,000759: 26,2712           15026                                    VEMSCON                               #  -HS D 180/PI (-14)
033307,000760: 26,2713           00001                                    0                                     #  VGAM FROM PDL0.
033308,000761: 26,2714           17725                           STODL    VIO                                   #  PREDICTED VELOCITY AT EMSALT.
033309,000762: 
033310,000763:                                                                                                  #                               GAMMA AND VGAM AT 300K FT ARE REQUIRED BY  GMAX
033311,000764:                                                                                                  #                               ALGORITHM.
033312,000765: 
033313,000766: 26,2715           02241                                    ERADM                                 #  EARTH RADIUS FROM GETERAD     (-29) M
033314,000767:                                                                                                  #                                          = FISCHER RADIUS  (-29)
033315,000768: 26,2716           77615                           DAD                                            
033316,000769: 26,2717           06462                                    300KFT                                #  M  (-29)
033317,000770: 26,2720           34023                           STCALL   RTERM                                 #  TERMINAL RADIUS  M  (-29)
033318,000771: 
033319,000772: 26,2721           55045                                    PREVGAM                               #  VGAMCALC WITH NEW RTERM
033320,000773: 
033321,000774:                                                                                                  #  VBAR = (V(FPS)  - 36KF/S) / 20KF/S
033322,000775:                                                                                                  #   GMAX = (4/(1+ 4.8 VBARSQ))(GAM -6.05 -2.4 VBARSQ) -10(L/D -.3) + 10     ASSUME L/D = 0.3, BANK =0.
033323,000776: 
033324,000777: 
033325,000778:                                                                                                  #                                          GMAXCALC
033326,000779: 26,2722           45325                           PDDL     DSU                                   #  GAM TO PDL2
033327,000780: 26,2723           00001                                    0                                     #  VGAM IS IN PDL0  (-7)
033328,000781: 26,2724           15004                                    36KFT/S                               #  (-7)   M/CS
033329,000782: 26,2725           63471                           DDV      DSQ                                   
033330,000783: 26,2726           15006                                    20KFT/S                               #  (-6)   M/CS
033331,000784: 26,2727           00001                           STORE    0                                     #  VBARSQ  (-2)  TO PDL0
033332,000785: 
033333,000786: 26,2730           43205                           DMP      DAD                                   
033334,000787: 26,2731           15010                                    KR1                                   
033335,000788:                                                                                                  #                                          GAM,    POS DOWN, FROM PDL2
033336,000789: 26,2732           41215                           DAD      DMP                                   
033337,000790: 26,2733           15012                                    -6.05DEG                              
033338,000791: 26,2734           15014                                    KR2                                   
033339,000792: 26,2735           77725                           PDDL                                           #  XCH PDL+0 FOR VBARSQ  (-2)
033340,000793: 26,2736           43271                           DDV      DAD                                   
033341,000794: 26,2737           15024                                    KR4                                   
033342,000795: 26,2740           17330                                    DP2(-4)                               
033343,000796: 26,2741           77665                           BDDV                                           
033344,000797:                                                                                                  #                                          NUM FROM PDL+0
033345,000798: 26,2742           51015                           DAD      BPL                                   
033346,000799: 26,2743           15016                                    KR3                                   
033347,000800: 26,2744           54747                                    +3                                    
033348,000801: 26,2745           77745                           DLOAD                                          
033349,000802: 26,2746           15332                                    HI6ZEROS                              
033350,000803: 26,2747           17722                           STODL    GMAX                                  #  100 GMAX  (-14)

Page 761

033352,000805:                                                                                                  #  DISPLAY USES GMAX AS SP, SO LO WORD IS WRITTEN OVER BY VPRED.
033353,000806: 
033354,000807: 26,2750           02241                                    ERADM                                 #  = FISCHER RADIUS  (-29) M
033355,000808: 26,2751           45015                           DAD      CALL                                  #  2 ND  ITERATION FOR FISCHER RADIUS
033356,000809: 26,2752           15022                                    400KFT                                
033357,000810: 26,2753           57031                                    CALCTFF                               #  ESTABLISH TRANSFER ANGLE DATA.
033358,000811: 26,2754           77624                           CALL                                           
033359,000812: 26,2755           56573                                    TFF/TRIG                              #  GET SIN, COS DELF
033360,000813: 26,2756           77624                           CALL                                           
033361,000814: 26,2757           55027                                    FISHCALC                              #  GET CORRESPONDING FISCHER RADIUS.
033362,000815: 
033363,000816: 26,2760           73015                           DAD      LXA,2                                 #  SAVE HI-WORD FOR DOWNLIST.
033364,000817: 26,2761           15022                                    400KFT                                #  M  (-29)
033365,000818: 26,2762           03713                                    RTGO                                  #  (RANGE ANGLE FROM EMSALT)/360
033366,000819: 26,2763           34023                           STCALL   RTERM                                 
033367,000820: 26,2764           55045                                    PREVGAM                               #  VGAMCALC WITH NEW RTERM
033368,000821: 
033369,000822: 26,2765           67076                           DCOMP    SXA,2                                 #  HI-WORD OF EACH ON DOWNLIST.
033370,000823: 26,2766           00155                                    MPAC       +1                         
033371,000824: 26,2767           17771                           STODL    GAMMAEI                               #  CONIC GAMMA/360 AT 400K FT.   ( HI-WORD)
033372,000825:                                                                                                  #                                          CONIC RTGO/360 FROM EMSALT    (LOW-WORD)
033373,000826:                                                                                                  #                                          FOR TM, DP(GAMMAEI)= (GAMMA, RTGO)/360
033374,000827: 
033375,000828:                                                                                                  #                                          VGAM FROM PDL+0   (-7)
033376,000829: 26,2770           77626                           STADR                                          
033377,000830: 26,2771           74010                           STORE    VPRED                                 #  CONIC VELOCITY AT 400K FT
033378,000831: 
033379,000832: 26,2772           77634                           RTB                                            
033380,000833: 26,2773           54267                                    P61.1                                 
033381,000834:                                                                                                  #                                          PDL BACK TO ZERO.
033382,000835: 
033383,000836: 26,2774           52145        LUNENT             DLOAD    GOTO                                  
033384,000837: 26,2775           06456                                    1/RTMUE                               #  ESTABLISH MU FOR LUNAR TYPE ENTRIES
033385,000838: 26,2776           54656                                    CALLCON                               
033386,000839: 26,2777           00002 26244  290KFT             2DEC     88392      B-29                       
033387,000840: 26,3001           00052 05716  KTETA1             2DEC*    .421844723 E2         B-14*           #  1100 2PI/16384(163.84)
033388,000841: 26,3003           33335 05707  36KFT/S            2DEC     109.728    B-7                        #  (-7) M/CS = 36 KFT/S (-7)
033389,000842: 26,3005           36365 30244  20KFT/S            2DEC     121.92     B-7                        #  (-6) M/CS  = 2 20KFT/S  (-7)
033390,000843: 26,3007           77113 42770  KR1                2DEC     -.026666667                            #  = -2.4  4 / 360
033391,000844: 26,3011           77354 65030  -6.05DEG           2DEC     -.016805556                            #  = -6.05 / 360
033392,000845: 26,3013           21450 00001  KR2                2DEC     .54931641                             #  =(360/4) 100 (-14) =  9000 B-14
033393,000846: 26,3015           01750 00000  KR3                2DEC     1000       B-14                       #  = 100  (10.0)  (-14)   G,S

Page 762

033395,000848:                                                                                                  #                                          ASSUMES L/D = 0.3, BANK =0.
033396,000849: 26,3017           00305 04541  RTRIAL             2DEC     6460097.18 B-29                       #   RPAD +284643 FT =21 194 545 FT
033397,000850:                                                                                                  #                               RPAD DEFINED AS 20 909 901.57 FT =6 373 338 M
033398,000851: 26,3021           00003 27040  400KFT             2DEC     121920     B-29                       #  METERS
033399,000852: 
033400,000853:                                                                                                  #  300KFT   2DEC   91440 B-29      (-29)  M
033401,000854: 
033402,000855:                                                                                                  #  EMSALT   2DEC   86759.2 B-29    284643 FT (-29) M    (ORBITAL REENTRY)
033403,000856: 
033404,000857:                                                                                                  #  EMSALT   2DEC   90657 B-29      297431 FT (-29) M    (LUNAR REENTRY)
033405,000858: 
033406,000859: 26,3023           32525 12525  KR4                2DEC     .833333333                            
033407,000860: 26,3025  23,2461               300KFT             EQUALS   MINPERE                               
033408,000861: 26,3025           77777 76601  VEMSCON            2DEC     -.0389676  B-14                       #  = -HS D  /2  PI  (-14)    M SQ/ CS SQ
033409,000862:                                                                                                  #                               =- 16369   .05G  32.2  .3048  .3048/2 PI    (-14)
033410,000863: 

Page 763

033412,000865:                                                                                                  #  SUBROUTINE NAME:   FISHCALC              (USED BY S61.2)                DATE:           01.21.67
033413,000866:                                                                                                  #  MOD NO:  0                                                              LOG SECTION:    P61-P67
033414,000867:                                                                                                  #  MOD BY:  MORTH / BAIRNSFATHER
033415,000868:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER     DATE:  11 MAY 67      INCLUDE  GETERAD  CALL
033416,000869:                                                                                                  #  FUNCTIONAL DESCRIPTION:  GIVEN THE PRESENT POSITION, UNITR, CALCULATE A  NEW UNITR THAT IS ROTATED THROUGH
033417,000870:                                                                                                  #           TRANSFER ANGLE, THETA, ALONG TRAJECTORY. THEN CALCULATE  SIN(LAT)  AND USE TO OBTAIN FISCHER RADIUS.
033418,000871: 
033419,000872:                                                                                                  #           SINCE FISHCALC USES UNI (LEFT BY ENTRY) EARTH SCALING IS ASSUMED.(WILL IMPROVE FOR SUITABLE TENNANT)
033420,000873: 
033421,000874:                                                                                                  #  CALLING SEQUENCE:  CALL
033422,000875:                                                                                                  #                          FISHCALC
033423,000876:                                                                                                  #           ENTER WITH .5 SIN(THETA) IN MPAC.
033424,000877:                                                                                                  #           PUSHLOC IS AT PDL+0, AN ARBITRARY BASE VALUE IF LEQ 8D
033425,000878: 
033426,000879:                                                                                                  #  SUBROUTINES CALLED:  GETERAD
033427,000880:                                                                                                  #  NORMAL EXIT MODE:    RVQ
033428,000881:                                                                                                  #  EXIT MODES:           NONE
033429,000882:                                                                                                  #  OUTPUT:  ERADM  (-29) M   IN MPAC ON RETURNING
033430,000883:                                                                                                  #           NEW UNIT VECTOR NOT SAVED.
033431,000884:                                                                                                  #           SIN(LAT) NOT SAVED.
033432,000885:                                                                                                  #           PUSHLOC AT PDL+0
033433,000886:                                                                                                  #  ERASEABLE INITIALIZATION REQUIRED:
033434,000887:                                                                                                  #           SDELF/2    =SIN(THETA)  /2,   IN MPAC                          LEFT BY TFF/TRIG
033435,000888:                                                                                                  #           CDELF/2    =COS(THETA) /2, STORED IN PDL 14D                   LEFT BY TFF/TRIG
033436,000889:                                                                                                  #           RONE   (-29) M                                                 LEFT BY USER
033437,000890:                                                                                                  #           VONE   (-7)  M/CS                                              LEFT BY USER
033438,000891:                                                                                                  #           URONE  UR/2                                                    LEFT BY USER
033439,000892:                                                                                                  #           UNI        .5 UNIT( V*R)                                       LEFT BY ENTRY / P61
033440,000893:                                                                                                  #           UNITW      UNIT NORTH POLE                                     LEFT BY PAD LOAD
033441,000894:                                                                                                  #  DEBRIS:  QPRET,   PDL+0 ... PDL+5
033442,000895: 
033443,000896: 
033444,000897:                                                                                                  #                                          -      -          -
033445,000898: 26,3027           47315        FISHCALC           PDVL     VXV                                   #  URPR = UR CDELF + UHOR SDELF
033446,000899: 26,3030           02343                                    URONE                                 
033447,000900: 26,3031           03502                                    UNI                                   
033448,000901: 26,3032           76561                           VXSC     VSL1                                  
033449,000902:                                                                                                  #                                          SIN(THETA) /2 FROM PDL+0
033450,000903: 26,3033           74315                           PDVL     VXSC                                  #  TO PDL+0,  +5
033451,000904: 26,3034           02343                                    URONE                                 
033452,000905: 26,3035           00017                                    CDELF/2                               #  COS(THETA) /2
033453,000906: 26,3036           45455                           VAD      STADR                                 
033454,000907: 26,3037           74235                           STORE    URH                                   #  FOR USE IN RTGO FROM EMS DISPLAY
033455,000908: 26,3040           72441                           DOT      SL1                                   
033456,000909: 26,3041           01714                                    UNITW                                 #  FULL UNIT VECTOR    UNIT NORTH
033457,000910: 26,3042           02156                           STORE    ALPHAV     +4                         #   = .5 SIN(LAT)
033458,000911: 26,3043           77650        DUMPFISH           GOTO                                           
033459,000912: 26,3044           26437                                    GETERAD                               #  SAVES FISCHER RAD (-29) M IN ERADM AND
033460,000913:                                                                                                  #                                          IN MPAC. RETURNS TO CALLER VIQ QPRET.
033461,000914: 

Page 764

033463,000916:                                                                                                  #  SUBROUTINE NAME:   VGAMCALC   (USED BY S61.2)                         DATE:           01.21.67
033464,000917:                                                                                                  #  MOD NO:    0                                                          LOG SECTION:    P61-P67
033465,000918:                                                                                                  #  MOD BY:  MORTH / BAIRNSFATHER
033466,000919:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER         DATE: 11 APR 67
033467,000920:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER         DATE: 21 NOV 67         VARIABLE MU ADDED.
033468,000921:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER         DATE: 21 MAR 68         ACCEPT DIFFERENT EARTH/MOON SCALE
033469,000922:                                                                                                  #  FUNCTIONAL DESCRIPTION:       EARTH CENTERED VIS VIVA CALCULATION OF TERMINAL VELOCITY AND GAMMA (REL TO
033470,000923:                                                                                                  #          HORIZONTAL)  GIVEN  THE SCALAR QUANTITIES:   PRESENT RADIUS AND VELOCITY AND THE TERMINAL RADIUS.
033471,000924:                                                                                                  #          THE USER MUST APPEND PROPER SIGN TO GAMMA, SINCE IT IS CALCULATED AS A POSITIVE NUMBER.
033472,000925:                                                                                                  #          THE EQUATIONS ARE
033473,000926: 
033474,000927:                                                                                                  #                 VGAM = SQRT(VN VN/MU + 2(RN-RTERM)/(RN RTERM)  )  RTMU
033475,000928: 
033476,000929:                                                                                                  #                 COSGAM = H /RTERM VGAM  = SQRT(LCP)/ (RTERM VGAM/RTMU)
033477,000930: 
033478,000931: 
033479,000932:                                                                                                  #          VGAMCALC ASSUMES THAT THE TERMINAL RADIUS IS LESS THAN THE PRESENT RADIUS. BOTH CALCTFF AND CALCTPER
033480,000933:                                                                                                  #          MAKE THIS ASSUMPTION.
033481,000934: 
033482,000935:                                                                                                  #  CALLING SEQUENCE:  CALL                         STCALL RTERM
033483,000936:                                                                                                  #                           VGAMCALC                      PREVGAM
033484,000937:                                                                                                  #          PUSHLOC AT PDL+0, ARBITRARY  IF LEQ 12D
033485,000938:                                                                                                  #          C(MPAC) UNSPECIFIED                    C(MPAC)=NEW RTERM
033486,000939: 
033487,000940:                                                                                                  #  SUBROUTINES CALLED:  NONE
033488,000941:                                                                                                  #  NORMAL EXIT MODE:    RVQ
033489,000942:                                                                                                  #  ALARMS:    NONE
033490,000943:                                                                                                  #  OUTPUT:    GAMMA / 360 IN MPAC, POSITIVE NUMBER
033491,000944:                                                                                                  #             VGAM E:(-7)  M:(-5)    M/CS IN PDL+0
033492,000945:                                                                                                  #             PUSHLOC AT PDL+2
033493,000946:                                                                                                  #  ERASABLE INITIALIZATION REQD:
033494,000947:                                                                                                  #           TFF/RTMU E:(17) M:(14)   1/SQRT(MU)                            LEFT BY TFFCONIC.
033495,000948:                                                                                                  #           RMAG1  E:(-29) M:(-27)   M   PRESENT RADIUS LENGTH             LEFT BY TFFCONIC
033496,000949:                                                                                                  #           NRMAG  E: (-29+NR)       M  NORM LENGTH OF PRESENT POSITION    LEFT BY TFFCONIC
033497,000950:                                                                                                  #                  M: (-27+NR)
033498,000951:                                                                                                  #           RTERM  E:(-29) M:(-27)   M  TERMINAL RADIUS LENGTH             LEFT BY CALCTFF
033499,000952:                                                                                                  #           NRTERM E: (-29+NR)       M  NORM LENGTH OF TERMINAL RADIUS     LEFT BY CALCTFF
033500,000953:                                                                                                  #                  M: (-27+NR)
033501,000954:                                                                                                  #           TFFVSQ E:(20)  M:(18)  1/M   -(V SQ/MU): PRESENT VELOCITY,NORM LEFT BY TFFCONIC
033502,000955:                                                                                                  #           TFFNP  E: (-38+2NR)      M  LCP, SEMI-LATUS RECTUM, WEIGHT NR  LEFT BY TFFCONIC
033503,000956:                                                                                                  #                  M: (-36+2NR)
033504,000957:                                                                                                  #  DEBRIS:  QPRET, PDL+0 ... PDL+3
033505,000958:                                                                                                  #           RTERM, NRTERM IF PREVGAM ENTERED.
033506,000959: 

Page 765

033508,000961: 26,3045           77657        PREVGAM            SL*                                            #  ENTER WITH NEW  RTERM IN MPAC
033509,000962:                                                                                                  #                                          E: (-29)  M: (-27)
033510,000963: 26,3046           20201                                    0,1                                   #  X1 = -NR
033511,000964: 26,3047           00021                           STORE    NRTERM                                #  RTERM  M        E:(-29+NR)   M: (-27+NR)
033512,000965: 
033513,000966: 26,3050           41345        VGAMCALC           DLOAD    DMP                                   
033514,000967: 26,3051           00041                                    NRMAG                                 #  RMAG  M          E:(-29+NR)  M:(-27+NR)
033515,000968: 26,3052           00021                                    NRTERM                                #  RTERM  M         E:(-29+NR)  M:(-27+NR)
033516,000969: 26,3053           45325                           PDDL     DSU                                   #  RMAG RTERM M     E:(-58+2NR) M:(-54+2NR)
033517,000970: 26,3054           00041                                    NRMAG                                 #  RMAG  M          E:(-29+NR)  M:(-27+NR)
033518,000971: 26,3055           00021                                    NRTERM                                #  RTERM  M         E:(-29+NR)  M:(-27+NR)
033519,000972: 26,3056           56257                           SL*      DDV                                   #  2(RN-RTERM)      E:(-30+NR)  M:(-28+NR)
033520,000973: 26,3057           20171                                    0          -8D,1                      #  (-8+NR)
033521,000974:                                                                                                  #                                          PUSH UP PRODUCT.
033522,000975: 26,3060           77625                           DSU                                            
033523,000976: 26,3061           00025                                    TFFVSQ                                #  -(V SQ/MU)         E: (20)   M: (18)
033524,000977: 26,3062           41566                           SQRT     PUSH                                  #  SAVE VGAM/RT(MU) FOR NOW. E:(10) M: (9)
033525,000978: 26,3063           65271                           DDV      PDDL                                  #  XCH PDL+0, LEAVING VGAM FOR OUTPUT.
033526,000979:                                                                                                  #                                          VGAM TO PDL M/CS   E: (-7)   M: (-2)
033527,000980: 26,3064           00037                                    TFF/RTMU                              #  E: (17)  M: (14)
033528,000981: 26,3065           65205                           DMP      PDDL                                  #  RTERM VGAM/RTMU  E:(-19+NR)  M:(-18+NR)
033529,000982: 26,3066           00021                                    NRTERM                                #  RTERM M          E:(-29+NR)  M:(-27+NR)
033530,000983: 26,3067           00035                                    TFFNP                                 #  LC P =H.H/MU M   E:(-38+2NR) M:(-36+2NR)
033531,000984: 26,3070           56366                           SQRT     DDV                                   #                   E:(-19+NR)  M:(-18+NR)
033532,000985:                                                                                                  #                                          PUSH UP DEN      E:(-19+NR)  M:(-18+NR)
033533,000986:                                                                                                  #                                          USE DDV OVFL AS LIMITER (|COS| <1.0)
033534,000987: 26,3071           65542                           SR1      ACOS                                  
033535,000988: 26,3072           77616        DUMPVGAM           RVQ                                            
033536,000989: 
033537,000990:                                                                                                  #                                          CALLER MUST SUPPLY OWN SIGN ...
033538,000991: 
033539,000992:                                                                                                  #                                                                   22W     27MS
033540,000993: 

Page 766

033542,000995:                                                                                                  #  SUBROUTINE NAME:     TFF/TRIG            (USED BY S61.2)                DATE     01.17.67
033543,000996:                                                                                                  #  MOD NO:  0                                                              LOG SECTION:    P61-P67
033544,000997:                                                                                                  #  MOD BY:  RR BAIRNSFATHER
033545,000998:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER     DATE:  14 APR 67
033546,000999:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER     DATE:  21 MAR 68      ACCEPT DIFFERENT EARTH/MOON SCALE
033547,001000:                                                                                                  #  FUNCTIONAL DESCRIPTION:      USED BY ENTRY DISPLAY TO CALCULATE SIN(THETA), COS(THETA) FROM DATA LEFT IN
033548,001001:                                                                                                  #           PDL BY TFF SUBROUTINES. THE EQNS ARE
033549,001002:                                                                                                  #                  COS(THETA) = 1-2 ABS(ARG) /(RN RTERM (1+X)  )
033550,001003:                                                                                                  #                                                  2
033551,001004:                                                                                                  #                  SIN(THETA) = SGN(ARG) SQRT(1-COS (THETA) )
033552,001005:                                                                                                  #           WHERE  THETA = TRANSFER ANGLE
033553,001006:                                                                                                  #           AND    ARG = P Z ABS(Z)                                        IF ALFA ZZ   LEQ 1
033554,001007:                                                                                                  #                  ARG = (P / ALFA)  SGN(Q1 + R 1/Z)                       IF ALFA Z Z   G  1
033555,001008:                                                                                                  #           AND  ARG  HAS BEEN AFFIXED WITH THE SIGN OF SIN(THETA).
033556,001009:                                                                                                  #  CALLING SEQUENCE:  CALL
033557,001010:                                                                                                  #                            TFF/TRIG
033558,001011:                                                                                                  #           PUSHLOC AT PDL+0, ARBITRARY IF NOT EQ 14D
033559,001012:                                                                                                  #           C(MPAC) UNSPECIFIED
033560,001013: 
033561,001014:                                                                                                  #  SUBROUTINES CALLED:  NONE
033562,001015:                                                                                                  #  NORMAL EXIT MODES:   RVQ
033563,001016:                                                                                                  #  ALARMS:  NONE
033564,001017:                                                                                                  #  OUTPUT:  C(MPAC) = .5 SIN(THETA)
033565,001018:                                                                                                  #           CDELF/2 = .5 COS(THETA)          (IN PDL 14D)
033566,001019:                                                                                                  #           PUSHLOC AT PDL+0
033567,001020:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED:
033568,001021:                                                                                                  #           TFFX                   X                                       LEFT BY CALCTFF OR CALCTPER
033569,001022:                                                                                                  #           TFFTEM E: (-59+2NR)    ARG                                     LEFT BY CALCTFF OR CALCTPER
033570,001023:                                                                                                  #                  M: (-55+2NR)    WHERE ARG = LCP ZZ SGN(DELF) OR ARG = LCP/ALFA  SGN(DELF)
033571,001024:                                                                                                  #           NRTERM E: (-29+NR)       M  NORM LENGTH OF TERMINAL RADIUS     LEFT BY CALCTFF OR CALCTPER
033572,001025:                                                                                                  #                  M: (-27+NR)
033573,001026:                                                                                                  #           NRMAG  E: (-29+NR)       M  NORM LENGTH OF PRESENT POSITION    LEFT BY TFFCONIC
033574,001027:                                                                                                  #                  M: (-27+NR)
033575,001028:                                                                                                  #  DEBRIS:  QPRET, CDELF/2
033576,001029: 
033577,001030: 27,2573                                           BANK     27                                    
033578,001031: 27,2000                                           SETLOC   P60S5                                 
033579,001032: 27,2000                                           BANK                                           
033580,001033: 27,2573           70545        TFF/TRIG           DLOAD    SR1                                   
033581,001034: 27,2574           00043                                    TFFX                                  
033582,001035: 27,2575           41215                           DAD      DMP                                   
033583,001036: 27,2576           15330                                    HIDPHALF                              
033584,001037: 27,2577           00041                                    NRMAG                                 #  RMAG  M          E:(-29+NR)  M:(-27+NR)
033585,001038: 27,2600           55205                           DMP      BDDV                                  
033586,001039: 27,2601           00021                                    NRTERM                                #  RTERM  M         E:(-29+NR)  M:(-27+NR)
033587,001040: 27,2602           00045                                    TFFTEM                                #  P ZSQ OR P/ALFA  E:(-59+2NR) M:(-55+2NR)
033588,001041: 27,2603           44246                           ABS      BDSU                                  #  THE SIGN IS FOR SDELF.
033589,001042: 27,2604           15330                                    HIDPHALF                              
033590,001043: 27,2605           00017                           STORE    CDELF/2                               #  .5 COS(THETA)
033591,001044: 27,2606           57516                           DSQ      DCOMP                                 #  KEEP HONEST FOR SQRT.

Page 767

033593,001046: 27,2607           75415                           DAD      SQRT                                  
033594,001047: 27,2610           15322                                    HIDP1/4                               
033595,001048: 27,2611           43565        DUMPTRIG           SIGN     RVQ                                   
033596,001049: 27,2612           00045                                    TFFTEM                                #  AFFIX SIGN(DELE/2)
033597,001050:                                                                                                  #                                          RETURN WITH .5 SIN(THETA) IN MPAC
033598,001051: 
033599,001052:                                                                                                  #                                                             16W            15 MS
033600,001053: 
033601,001054: 27,2613           77620        DISPTARG           STQ                                            #   C(MPAC) = TRGO  ESTIMATE
033602,001055: 27,2614           03373                                    60GENRET                              
033603,001056: 27,2615           45205                           DMP      DSU                                   
033604,001057: 27,2616           15002                                    KTETA1                                
033605,001058: 27,2617           03733                                    TTE1                                  
033606,001059: 27,2620           37606                           STCALL   DTEAROT                               
033607,001060: 27,2621           46225                                    EARROT2                               
033608,001061: 27,2622           77624                           CALL                                           
033609,001062: 27,2623           56626                                    VRCALC                                
033610,001063: 27,2624           77650                           GOTO                                           
033611,001064: 27,2625           03373                                    60GENRET                              
033612,001065: 27,2626           50375        VRCALC             VLOAD    DOT                                   
033613,001066: 27,2627           03542                                    URH                                   
033614,001067: 27,2630           03474                                    RT                                    
033615,001068: 27,2631           65512                           SL2      ACOS                                  
033616,001069: 27,2632           77616                           RVQ                                            
033617,001070:                                                                                                  #  END OF PROGRAM S61.2
033618,001071: 

Page 768

033620,001073: 
033621,001074:                                                                                                  #  PROGRAM DESCRIPTION S62.3       DATE 10JAN67
033622,001075:                                                                                                  #  MOD NO 1        LOG SECTION P60-P67
033623,001076:                                                                                                  #  MOD BY ZELDIN
033624,001077:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE: 15 MAY 67      CHANGED TO REF COORDS.
033625,001078:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     ALFAPAD CHANGES MADE.
033626,001079:                                                                                                  #  FUNCTIONAL DESCRIPTION
033627,001080:                                                                                                  #           COMPUTE  DESIRED GIMBOL ANGLES FOR ENTRY ATTITUDE
033628,001081:                                                                                                  #           THE FOLLOWING TRAJECTORY TRIAD IS AVAILABLE IN MEMORY AND IS COMPUTED EACH 2 SECONDS BY  CM/POSE  IN
033629,001082:                                                                                                  #           REFERENCE COORDINATES (V = VELOCITY RELATIVE TO EARTH) :
033630,001083: 
033631,001084:                                                                                                  #                  UXA = -UNIT(V)
033632,001085:                                                                                                  #                  UYA =  UNIT(V*R)
033633,001086:                                                                                                  #                  UZA =  UXA*UYA
033634,001087: 
033635,001088:                                                                                                  #           GENERATE A DESIRED BODY TRIAD FOR TRIMMED FLIGHT WITH RESPECT TO THE RELATIVE VELOCITY VECTOR, USING
033636,001089:                                                                                                  #           ROLL COMMAND AND TRIM ANGLE OF ATTACK:
033637,001090: 
033638,001091:                                                                                                  #                UXD = UNIT(UYD*UXA) SIN(ALFATRIM) + UXA COS(ALFATRIM)
033639,001092:                                                                                                  #                UYD = UYA COS(ROLLC) + UZA SIN(ROLLC)
033640,001093:                                                                                                  #                UZD = UXD * UYD
033641,001094: 
033642,001095:                                                                                                  #           USE THE DESIRED SET (IN REFERENCE COORDS) AND  REFSMMAT  TO CALL   CALCGA   AND OBTAIN GIMBAL ANGLES
033643,001096:                                                                                                  #           IN 2S,C IN MPAC, +2 AND THETAD, +2.
033644,001097: 
033645,001098:                                                                                                  #  CALLING SEQUENCE
033646,001099:                                                                                                  #         L   CALL
033647,001100:                                                                                                  #         L+1      S62.3
033648,001101:                                                                                                  #  NORMAL EXIT MODE
033649,001102:                                                                                                  #           RETURN VIA QPRET DIRECTLY FROM CALCGA.
033650,001103:                                                                                                  #  SUBROUTINES CALLED
033651,001104:                                                                                                  #           CALCGA
033652,001105:                                                                                                  #  ALARM OR ABORT MODES
033653,001106:                                                                                                  #           NONE
033654,001107:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
033655,001108:                                                                                                  #           ROLLC  ROLL COMMAND          DP 1:S COMP AT 1REV
033656,001109:                                                                                                  #           ALFAPAD   SP 1S,C     /180                LEFT BY PAD LOAD    ALFATRIM IS NEGATIVE.
033657,001110:                                                                                                  #           UXA/2  REF COORDS                         LEFT BY CM/POSE
033658,001111:                                                                                                  #           UYA/2  REF COORDS                         LEFT BY CM/POSE
033659,001112:                                                                                                  #           UZA/2  REF COORDS                         LEFT BY CM/POSE
033660,001113:                                                                                                  #  OUTPUT
033661,001114:                                                                                                  #           CPHI   GIMBAL ANGLES (O,I,M) 2:S COMP TP (O,I,M)/180
033662,001115:                                                                                                  #  DEBRIS
033663,001116:                                                                                                  #        QTEMP, QPRET,PUSHLIST
033664,001117: 
033665,001118: 10,2302                                           BANK     10                                    
033666,001119: 10,2000                                           SETLOC   P60S4                                 
033667,001120: 10,2000                                           BANK                                           
033668,001121: 

Page 769

033670,001123: 10,2302                                           COUNT*   $$/S62.3                              
033671,001124: 
033672,001125: 10,2302           67201        S62.3              SETPD    SLOAD                                 
033673,001126: 10,2303           00001                                    0                                     
033674,001127: 10,2304           03012                                    ALFAPAD                               #  ALFATRIM /180, ALFA IS NEG.
033675,001128: 10,2305           41542                           SR1      PUSH                                  
033676,001129: 10,2306           65346                           COS      PDDL                                  #  XCH PDL, COS TO PDL0
033677,001130: 10,2307           65356                           SIN      PDDL                                  #  SIN TO PDL2
033678,001131: 10,2310           03316                                    ROLLC                                 
033679,001132: 10,2311           74346                           COS      VXSC                                  
033680,001133: 10,2312           03550                                    UYA/2                                 #                           REF COORDS
033681,001134: 10,2313           73525                           PDDL     SIN                                   #  PUSH VECTOR INTO PDL4,.9
033682,001135: 10,2314           03316                                    ROLLC                                 
033683,001136: 10,2315           53361                           VXSC     VAD                                   
033684,001137: 10,2316           03556                                    UZA/2                                 #                           REF COORDS
033685,001138:                                                                                                  #                                          VECTOR FROM PDL4, 9
033686,001139: 10,2317           77772                           VSL1                                           
033687,001140: 10,2320           02722                           STORE    YNB                                   #  = UYD                    REF COORDS
033688,001141: 
033689,001142: 10,2321           76435                           VXV      VSL1                                  
033690,001143: 10,2322           03542                                    UXA/2                                 #                           REF COORDS
033691,001144: 10,2323           65361                           VXSC     PDDL                                  
033692,001145:                                                                                                  #                                          SIN TRIM FROM PDL2
033693,001146:                                                                                                  #                                          XCH PDL0 FOR COS TRIM
033694,001147: 10,2324           53361                           VXSC     VAD                                   
033695,001148: 10,2325           03542                                    UXA/2                                 #                           REF COORDS
033696,001149:                                                                                                  #                                          FROM PDL0
033697,001150: 10,2326           77626                           STADR                                          
033698,001151: 10,2327           75063                           STORE    XNB                                   #  X SC AXIS (.5 UNIT)        REF COORDS
033699,001152: 
033700,001153: 10,2330           76435                           VXV      VSL1                                  
033701,001154: 10,2331           02722                                    YNB                                   
033702,001155: 10,2332           26730                           STOVL    ZNB                                   #  Z SC IN REF COOR. SCALED AT 2
033703,001156: 10,2333           01736                                    REFSMMAT                              
033704,001157: 10,2334           26672                           STOVL    XSM                                   
033705,001158: 10,2335           01744                                    REFSMMAT   +6                         
033706,001159: 10,2336           26700                           STOVL    YSM                                   
033707,001160: 10,2337           01752                                    REFSMMAT   +12D                       
033708,001161: 10,2340           02706                           STORE    ZSM                                   
033709,001162: 
033710,001163: 10,2341           52014                           CLEAR    GOTO                                  
033711,001164: 10,2342           00260                                    CPHIFLAG                              #  CAUSE CALCGA TO STORE ANS IN TP CPHI
033712,001165: 10,2343           47244                                    CALCGA                                
033713,001166:                                                                                                  #                                          CALCGA WILL RETURN TO ORIGINAL CALLER
033714,001167:                                                                                                  #                                          VIA QPRET WITH 2,S COMP. ANGLES IN CPHI

End of include-file P61-P67.agc.  Parent file is MAIN.agc