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.

032556,000002:                                                                                                  ## Copyright:   Public domain.
032557,000003:                                                                                                  ## Filename:    MAIN.agc
032558,000004:                                                                                                  ## Purpose:     Part of the source code for Colossus build 237.  
032559,000005:                                                                                                  ##              This is for the Command Module's (CM) Apollo Guidance
032560,000006:                                                                                                  ##              Computer (AGC), for Apollo 8.
032561,000007:                                                                                                  ## Assembler:   yaYUL
032562,000008:                                                                                                  ## Contact:     Onno Hommes <ohommes@alumni.cmu.edu>
032563,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
032564,000010:                                                                                                  ## Page Scans:  www.ibiblio.org/apollo/ScansForConversion/Colossus237/
032565,000011:                                                                                                  ## Mod history: 2010-05-18 OH   Adapted from corresponding Colossus 249 file.
032566,000012:                                                                                                  ##              2010-12-04 JL   Remove Colossus 249 header comments. Change to double-has page numbers.
032567,000013:                                                                                                  ##              2011-02-08 JL   Minor fixes.
032568,000014:                                                                                                  ##              2016-11-02 RSB  Typo (offset-references +2 and +3 not indented).
032569,000015:                                                                                                  ##              2017-01-01 RSB  Proofed comment text using octopus/ProoferComments,
032570,000016:                                                                                                  ##                              and fixed errors found.
032571,000017:                                                                                                  ##              2017-01-18 RSB  Fixed comment-text errors noted while diff'ing
032572,000018:                                                                                                  ##                              vs Colossus 249.
032573,000019:                                                                                                  ##              2017-02-08 RSB  Fixed comment-text errors noted while diff'ing
032574,000020:                                                                                                  ##                              vs Artemis 72.
032575,000021: 

Page 740

032577,000023:                                                                                                  #  PROGRAM:             P61
032578,000024:                                                                                                  #  MOD NO.:             0    MAR. 13, 1967
032579,000025:                                                                                                  #  MOD BY:              R. HIRSCHKOP
032580,000026:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER      DATE:  22 JUN 67     RESTARTS.
032581,000027:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP CHANGES.
032582,000028:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:   8 MAY 68     DELETE CMSM MANEUVER (PCR 50)
032583,000029:                                                                                                  #  FUNCTION:            TO CALCULATE AND DISPLAY EMS INITIALIZATION DATA
032584,000030:                                                                                                  #  CALLING SEQUENCE-    BY V37
032585,000031:                                                                                                  #  EXIT-                TO P62
032586,000032:                                                                                                  #  SUBROUTINE CALLS-    S61.1 , S61.3 , GOFLASH , FLAGUP , R02BOTH
032587,000033: 
032588,000034:                                                                                                  #  ERASABLE INITIALIZATION:
032589,000035:                                                                                                  #           EMSALT  (-29) M        .05G ALTITUDE ABOVE FISCHER ELLIPSOID   PAD LOADED.
032590,000036:                                                                                                  #           ALFAPAD  /180          HYPERSONIC CM TRIM ANGLE OF ATTACK      PAD LOADED
032591,000037:                                                                                                  #  OUTPUT:  THE FOLLOWING REGISTERS ARE WRITTEN IN FOR USE BY DISPLAYS
032592,000038:                                                                                                  #           GMAX   100 GMAX  (-14)  G,S     MAXIMUM ACCELERATION
032593,000039:                                                                                                  #           VPRED  (-7)  M/CS      PREDICTED VELOCITY AT 400K FT
032594,000040:                                                                                                  #           GAMMAEI  GAMMA/360     PREDICTED GAMMA    AT 400K FT
032595,000041:                                                                                                  #           RTGO   THETAH/360      RANGE ANGLE TO SPLASH FROM EMSALT       EMSALT IS PAD LOADED
032596,000042:                                                                                                  #           VIO    (-7) M/CS       INERTIAL VELOCITY AT       EMSALT       EMSALT IS PAD LOADED
032597,000043:                                                                                                  #           TTE    (-28) CS        TIME     TO                EMSALT       EMSALT IS PAD LOADED
032598,000044:                                                                                                  #           LAT(SPL)  /360         TARGET LOCATION                         LEFT BY DSKY
032599,000045:                                                                                                  #           LNG(SPL)  /360         TARGET LOCATION                         LEFT BY DSKY
032600,000046:                                                                                                  #           HEADSUP   (0)          +1 = LIFT DOWN, -1 = LIFT UP            LEFT BY DSKY
032601,000047:                                                                                                  #  DEBRIS:  SEE SUBROUTINES.
032602,000048: 
032603,000049: 26,2217                                           BANK     26                                    
032604,000050: 26,2000                                           SETLOC   P60S                                  
032605,000051: 26,2000                                           BANK                                           
032606,000052: 
032607,000053: 26,2217  E6,1661                                  EBANK=   AOG                                   
032608,000054: 
032609,000055: 26,2217                                           COUNT*   $$/P61                                
032610,000056: 
032611,000057: 26,2217           34675        P61                CA       BIT14                                 #  EXTENDED VERB SHOULD BE FREE THIS CLOSE
032612,000058: 26,2220           55044                           TS       EXTVBACT                              #  TO V37
032613,000059:                                                                                                  #                                          LOCK OUT EXTENDED VERBS SO CAN USE TFF
032614,000060:                                                                                                  #                                          ROUTINES.EXT VERB ERASE IS USED
032615,000061: 
032616,000062: 26,2221           44712                           CS       ONE                                   #  REMOVE IF HEADSUP EVER ON UPLINK DATA
032617,000063: 26,2222           55726                           TS       HEADSUP                               #  PRELOAD
032618,000064: 
032619,000065: 26,2223           02543                           TC       S61.1                                 #  CHECK STATE VECTOR AND IMU ORIENTATION
032620,000066:                                                                                                  #                               RV 60GENRET. DOES PHASCHNG, GROUP 4.
032621,000067: 
032622,000068: 26,2224           32424                           CA       V06N61                                #  LAT(SPL)     LNG(SPL)     HEADSUP
032623,000069:                                                                                                  #                                          XXX.XX DEG   XXX.XX DEG   XXXXX.
032624,000070: 26,2225           04555                           TC       BANKCALL                              
032625,000071: 26,2226           20763                           CADR     GOFLASHR                              
032626,000072: 26,2227           04106                           TC       GOTOPOOH                              

Page 741

032628,000074: 26,2230           02235                           TC       P61.4                                 
032629,000075: 26,2231           02224                           TC       -5                                    
032630,000076: 
032631,000077: 26,2232           05301        P61.3              TC       PHASCHNG                              
032632,000078: 26,2233           00014                           OCT      00014                                 
032633,000079: 
032634,000080: 26,2234           05112                           TC       ENDOFJOB                              
032635,000081: 
032636,000082: 26,2235           22007        P61.4              ZL                                             
032637,000083: 26,2236           11726                           CCS      HEADSUP                               #  C(HEADSUP)=  +1/-1
032638,000084: 26,2237           34675                           CA       BIT14                                 #  IF HEADSUP POS,ROLLC =180 DEG.(LIFT DWN)
032639,000085: 26,2240           12241                           NOOP                                           #  IF HEADSUP NEG,ROLLC=0 (LIFT UP)
032640,000086: 26,2241           53716                           DXCH     ROLLC                                 #  ROLLC IS USED BY S62.3: GIM ANG AT .05G
032641,000087: 
032642,000088: 26,2242           06006                           TC       INTPRET                               
032643,000089: 26,2243           77745        NEWRNVN            DLOAD                                          
032644,000090: 26,2244           01205                                    PIPTIME                               #  SAVE TIME OF RN,VN TO DETERMINE IF AN
032645,000091: 26,2245           37651                           STCALL   MM                                    #  UPDATE HAS OCCURRED
032646,000092: 26,2246           52063                                    STARTEN1                              #  INITIALIZE
032647,000093: 26,2247           77775                           VLOAD                                          
032648,000094: 26,2250           01171                                    RN                                    
032649,000095: 26,2251           02327                           STORE    RONE                                  
032650,000096: 26,2252           77656                           UNIT                                           
032651,000097: 26,2253           26343                           STOVL    URONE                                 
032652,000098: 26,2254           01177                                    VN                                    
032653,000099: 26,2255           02335                           STORE    VONE                                  
032654,000100: 26,2256           53435                           VXV      UNIT                                  
032655,000101: 26,2257           02343                                    URONE                                 
032656,000102: 26,2260           03502                           STORE    UNI                                   
032657,000103: 26,2261           45345        DUMPP61            DLOAD    DSU                                   
032658,000104: 26,2262           03651                                    MM                                    #  INITIAL VALUE OF PIPTIME
032659,000105: 26,2263           01205                                    PIPTIME                               
032660,000106: 26,2264           45040                           BMN      CALRB                                 
032661,000107: 26,2265           54243                                    NEWRNVN                               #  UPDATED... GO TRY AGAIN
032662,000108: 26,2266           54650                                    S61.2                                 #  GET DISPLAY DATA FOR N60 AND N63
032663,000109:                                                                                                  #                                          AND RETURN IN BASIC, BELOW.
032664,000110: 26,2267           05425        P61.1              TC       CLEARMRK                              
032665,000111: 26,2270           32423                           CA       V06N60                                #  GMAX         VPRED         GAMMAEI
032666,000112:                                                                                                  #                                          XXX.XX G     XXXXX. FPS    XXX.XX DEG
032667,000113: 26,2271           04555                           TC       BANKCALL                              
032668,000114: 26,2272           20624                           CADR     GOFLASH                               
032669,000115: 
032670,000116: 26,2273           04106                           TC       GOTOPOOH                              
032671,000117: 26,2274           02276                           TC       P61.2                                 #  PROCEED
032672,000118: 26,2275           02270                           TC       -5                                    
032673,000119: 
032674,000120: 26,2276           06006        P61.2              TC       INTPRET                               #  CORRECT  TTE  FOR TIME LAPSE DURING
032675,000121:                                                                                                  #                                          ABOVE DISPLAY.
032676,000122: 26,2277           45234                           RTB      DSU                                   
032677,000123: 26,2300           45505                                    LOADTIME                              #  CURRENT TIME.

Page 742

032679,000125: 26,2301           03651                                    MM                                    #  PIPTIME FOR RONE & VONE.
032680,000126: 26,2302           77615                           DAD                                            
032681,000127: 26,2303           03733                                    TTE1                                  #  NEGATIVE OF FREE FALL TIME.
032682,000128: 26,2304           03727                           STORE    TTE                                   #  DECREMENTED
032683,000129: 
032684,000130: 26,2305           77776                           EXIT                                           
032685,000131: 
032686,000132: 26,2306           32425                           CA       V06N63                                #  RTGO         VIO           TTE
032687,000133:                                                                                                  #                                          XXXX.X NM    XXXXX. FPS    XXBXX M,S
032688,000134: 26,2307           04555                           TC       BANKCALL                              
032689,000135: 26,2310           20624                           CADR     GOFLASH                               
032690,000136: 26,2311           04106                           TC       GOTOPOOH                              
032691,000137: 26,2312           02314                           TC       +2                                    
032692,000138: 26,2313           02276                           TC       P61.2                                 #  REDO
032693,000139: 
032694,000140:                                                                                                  #                                  .... THEN FALL INTO P62
032695,000141: 

Page 743

032697,000143:                                                                                                  #  PROGRAM-             P62
032698,000144:                                                                                                  #  MOD NO.-             0    MAR. 13, 1967
032699,000145:                                                                                                  #  MOD BY-              R. HIRSCHKOP
032700,000146:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER      DATE: 21 MAR 67
032701,000147:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:  22 JUN 67     RESTARTS.
032702,000148:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP CHANGES.
032703,000149:                                                                                                  #  MOD NO:  4           MOD BY:  RR BAIRNSFATHER      DATE:   8 MAY 68     MOVE START OF DESIRED GIMBAL CALC.
032704,000150:                                                                                                  #  FUNCTION-            1) TO NOTIFY CREW WHEN GNC SYSTEM IS PREPARED FOR CM/SM SEPARATION
032705,000151:                                                                                                  #                       2) TO ORIENT THE CM TO THE CORRECT ATTITUDE FOR ATMOSPHERIC ENTRY
032706,000152:                                                                                                  #  CALLING SEQUENCE-    BY V37 OR DIRECTLY FROM P61
032707,000153:                                                                                                  #  EXIT-                TO P63
032708,000154:                                                                                                  #  ERASABLE INITIALIZATION:
032709,000155:                                                                                                  #           ALFAPAD                                       LEFT BY PAD LOAD
032710,000156:                                                                                                  #           LADPAD                                        LEFT BY PAD LOAD
032711,000157:                                                                                                  #           LODPAD                                        LEFT BY PAD LOAD
032712,000158:                                                                                                  #           LAT(SPL)    (MAY BE CHANGED BELOW)            LEFT BY DSKY, VIA P61
032713,000159:                                                                                                  #           LNG(SPL)    (MAY BE CHANGED BELOW)            LEFT BY DSKY, VIA P61
032714,000160:                                                                                                  #           HEADSUP     (MAY BE CHANGED BELOW)            LEFT BY DSKY, VIA P61
032715,000161:                                                                                                  #  SUBROUTINE CALLS:    NEWMODEX , S61.1 , CM/DAPIC , CM/DAPON , R02BOTH , GOPERF1 , GOFLASH , GODSPR
032716,000162: 
032717,000163: 26,2314                                           COUNT*   $$/P62                                
032718,000164: 
032719,000165: 26,2314           05243                           TC       NEWMODEX                              #  MODE CHANGE IF CAME FROM P61.
032720,000166: 26,2315           00076                           MM       62         B-14                       #  MODE CHANGE AUTOMATIC VIA V 37.
032721,000167: 26,2316           34712                           CA       ONE                                   
032722,000168: 26,2317           54332                           TS       DNLSTCOD                              
032723,000169: 
032724,000170: 26,2320           02543        P62                TC       S61.1                                 #  CHECK STATE VECTOR AND IMU ORIENTATION.
032725,000171: 
032726,000172: 26,2321           06006                           TC       INTPRET                               
032727,000173: 26,2322           47131                           SSP      RTB                                   
032728,000174: 26,2323           03325                                    POSEXIT                               
032729,000175: 26,2324           54402                                    P62.3                                 #  CALCULATE DESIRED .05G GIMBAL ANGLES,
032730,000176:                                                                                                  #  WITHOUT DISPLAY.
032731,000177: 26,2325           41630                                    CM/DAPIC                              #  START CM/POSE AND BODY RATE CALC
032732,000178: 
032733,000179:                                                                                                  #  DOES 2PHSCHNG, OCT 40116, OCT 05024, OCT 13000.
032734,000180:                                                                                                  #  CM/DAPIC SETS EBANK = EBAOG
032735,000181: 
032736,000182:                                                                                                  #  AND RETURNS IN BASIC TO P62.2.                                
032737,000183: 26,2326           00006        P62.2              EXTEND                                         
032738,000184: 26,2327           32431                           DCA      POSECADR                              #  CONTINUE WITH CM/POSE AFTER AV G.
032739,000185: 26,2330           53223                           DXCH     AVEGEXIT                              
032740,000186: 
032741,000187: 26,2331           34270                           CAF      OCT41                                 #  REQUEST SEPARATION
032742,000188: 26,2332           04555                           TC       BANKCALL                              
032743,000189: 26,2333           21031                           CADR     GOPERF1R                              
032744,000190: 26,2334           04106                           TC       GOTOPOOH                              
032745,000191: 26,2335           02340                           TC       +3                                    #  PROCEED
032746,000192: 

Page 744

032748,000194:                                                                                                  #                                                               NOTE:  NODOFLAG WILL BE SET IN CM/DAPON. <<<
032749,000195: 26,2336           02331                           TC       -5                                    #  ENTER
032750,000196: 26,2337           02232                           TC       P61.3                                 #  FOR PHASCHNG AND ENDOFJOB.
032751,000197: 
032752,000198: 26,2340           04574                 +3        TC       POSTJUMP                              
032753,000199: 26,2341           41550                           CADR     CM/DAPON                              #  DISABLE RCS DAP, ENABLE ENTRY DAP AND
032754,000200:                                                                                                  #                                          DO ATTITUDE HOLD.
032755,000201: 
032756,000202:                                                                                                  #                               WILL IDLE UNTIL CM/POSE DOES ONE UPDATE.
032757,000203:                                                                                                  #                               CM/DAPON DOES NO PHASCHNG.
032758,000204: 
032759,000205: 
032760,000206: 26,2342           32424        P62.1              CA       V06N61                                #  LAT(SPL)     LNG(SPL)      HEADSUP
032761,000207:                                                                                                  #  XXX.XX DEG   XXX.XX DEG    0000X.
032762,000208: 
032763,000209:                                                                                                  #                                  TERMINATE  ATTITUDE HOLD. SET UP COMMANDS:
032764,000210:                                                                                                  #                                  ROLLC,  ALFACOM,  BETACOM.   BEGIN MANUVER TO
032765,000211:                                                                                                  #                                  ENTRY ATTITUDE.
032766,000212: 
032767,000213: 26,2343           04555                           TC       BANKCALL                              
032768,000214: 26,2344           20624                           CADR     GOFLASH                               
032769,000215: 26,2345           02342                           TC       -3                                    
032770,000216: 26,2346           02350                           TC       +2                                    
032771,000217: 26,2347           02342                           TC       -5                                    
032772,000218: 
032773,000219: 26,2350           05301                           TC       PHASCHNG                              
032774,000220: 26,2351           04024                           OCT      04024                                 #  USE ENTRYVN FOR DISPLAY BELOW.
032775,000221: 
032776,000222:                                                                                                  #                                          EBANK WAS SET IN CM/DAPON TO EBAOG
032777,000223: 
032778,000224: 26,2352           11726                           CCS      HEADSUP                               #  C(HEADSUP) = +/- 1
032779,000225: 26,2353           34675                           CA       BIT14                                 #  IF HEADSUP POS,ROLLC=180 DEG (LIFT DWN)
032780,000226: 26,2354           12355                           NOOP                                           #  IF HEADSUP NEG,ROLLC=0 DEG  (LIFT UP)
032781,000227: 26,2355           55715                           TS       ROLLC                                 
032782,000228: 26,2356           31411                           CA       ALFAPAD                               #  NOMINAL ALFATRIM PAD LOADED, NEG. NO.
032783,000229: 26,2357           22007                           ZL                                             
032784,000230: 26,2360           53604                           DXCH     ALFACOM                               #  SET ALFACOM = ALFA TRIM, BETACOM=0
032785,000231: 
032786,000232: 26,2361           34712                           CA       ONE                                   #  PERMITS EXDAP2 TO CHANGE FLAG TO +0
032787,000233: 26,2362           55727                           TS       P63FLAG                               #  AS INDICATOR. STARTS UP P63.
032788,000234: 
032789,000235: 26,2363           34745                           CA       V06N22                                #  SET UP DISPLAY FOR CDU DESIRED VALUES
032790,000236: 26,2364           55263                           TS       ENTRYVN                               #  FROM ENTRY ATTITUDE CALC, THAT IS
032791,000237:                                                                                                  #                                          ALREADY GOING.
032792,000238: 26,2365           05435                           TC       UPFLAG                                #  TURN ON ENTRY DISPLAY
032793,000239: 26,2366           00134                           ADRES    ENTRYDSP                              #  ENTRYDSP = 92D  BIT 13  FLAG 6
032794,000240:                                                                                                  #  SKIP
032795,000241: 

Page 745

032797,000243: 26,2367           41700                           CS       CMDAPMOD                              #  GO DIRECTLY TO P63 IF BODY ATTITUDE
032798,000244: 26,2370           74712                           MASK     ONE                                   #  IS SUCH THAT THE DELAY TASK: WAKEP62
032799,000245: 26,2371           00006                           EXTEND                                         #  WILL BE OMITTED.
032800,000246: 26,2372           12420                           BZF      P63.1                                 #  DISABLE GRP 4, GO TO ENDOFJOB.
032801,000247: 
032802,000248:                                                                                                  #                                          (IE, CONTINUE IF CMDAPMOD = -1, OR +0)
032803,000249: 26,2373           02406                           TC       P63                                   
032804,000250: 
032805,000251:                                                                                                  #                                  PUT JOB TO SLEEP UNTIL VEHICLE MANUVER HAS
032806,000252:                                                                                                  #                                  REDUCED ALFA TO +/-45 DEG. CONSIDER REMAINING
032807,000253:                                                                                                  #                                  65 DEG (25 DEG IF ALFA NEG) TO ALFA TRIM TO
032808,000254:                                                                                                  #                                  OCCUR AT 3 DEG/SEC, AND TERMINATE P62 AT THAT
032809,000255:                                                                                                  #                                  TIME.
032810,000256:                                                                                                  #                                  TASK WAKEP62 IS CALLED FROM ENTRY DAP.
032811,000257: 
032812,000258: 26,2374           34760        WAKEP62            CA       PRIO13                                
032813,000259: 26,2375           05027                           TC       NOVAC                                 
032814,000260: 26,2376  E6,1661                                  EBANK=   AOG                                   
032815,000261: 26,2376           02406 54066                     2CADR    P63                                   
032816,000262: 26,2400           05213                           TC       TASKOVER                              
032817,000263: 
032818,000264: 26,2401           54402        P62.3CAD           CADR     P62.3                                 
032819,000265: 
032820,000266:                                                                                                  #                               EACH 2 SEC, CALCULATE GIMBAL ANGLES FOR ENTRY CON-
032821,000267:                                                                                                  #                               DITIONS THAT WILL HOLD IF REORIENTATION WERE MADE
032822,000268:                                                                                                  #                               AT PRESENT RN, VN. COME HERE FROM CM/POSE AND ALSO
032823,000269:                                                                                                  #                               IN KEPLER PHASE OF ENTRY.
032824,000270: 26,2402           52131        P62.3              SSP      GOTO                                  #  SET RETURN ADDRESS SO THAT   ROUTINE
032825,000271: 26,2403           00053                                    QPRET                                 #  GOES DIRECTLY TO ENTRY GUIDANCE EXIT
032826,000272: 26,2404           53570                                    ENDEXIT                               #  THAT DOES ENTRY DISPLAY ,GRP 5.
032827,000273: 26,2405           20302                                    S62.3                                 #   PUT DESIRED CDU VALUES IN CPHI'S FOR
032828,000274:                                                                                                  #  N22 DISPLAY.
032829,000275: 

Page 746

032831,000277:                                                                                                  #           P63
032832,000278:                                                                                                  #  PROGRAM-             P63
032833,000279:                                                                                                  #  MOD NO.-             0    MAR. 13, 1967
032834,000280:                                                                                                  #  MOD BY-              R. HIRSCHKOP
032835,000281:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER      DATE:  22 JIN 67     RESTARTS.
032836,000282:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:  14 JUL 67     REVISED RESTARTS
032837,000283:                                                                                                  #  FUNCTION-            1) TO INITIALIZE THE ENTRY EQUATIONS
032838,000284:                                                                                                  #                       2) TO CONTINUE TO HOLD THE CM TO THE CORRECT ATTITUDE WITH RESPECT TO THE ATMOSPHERE FOR
032839,000285:                                                                                                  #                          THE ONSET OF ENTRY DECELERATION. ROLL ANGLE IS LIFT UP/DOWN AS SPECIFIED BY HEADSUP.
032840,000286:                                                                                                  #                       3) TO SENSE .05 G
032841,000287:                                                                                                  #  CALLING SEQUENCE-    DIRECTLY FROM P62
032842,000288:                                                                                                  #  EXIT-                TO ENDOFJOB
032843,000289:                                                                                                  #  SUBROUTINE CALLS-    NEWMODEX , GODSPR
032844,000290: 
032845,000291: 26,2406                                           COUNT*   $$/P63                                
032846,000292: 
032847,000293: 26,2406           05243        P63                TC       NEWMODEX                              
032848,000294: 26,2407           00077                           MM       63         B-14                       
032849,000295: 
032850,000296: 26,2410           04555                           TC       BANKCALL                              #  FLUSH N22 DISPLAY, IF ON.  (ONIT DISP
032851,000297: 26,2411           20607                           CADR     CLEANDSP                              #  DURING STARTENT PASS.)
032852,000298: 
032853,000299:                                                                                                  #                                          ARRIVE WITH EBANK = AOG.
032854,000300: 
032855,000301: 26,2412           32427                           CA       ENTCADR                               #  CONTINUE AT STARTENT AFTER CM/POSE .
032856,000302: 
032857,000303:                                                                                                  #                                  AT END OF STARTENT, CHANGE ADDRESS IN GOTOADDR
032858,000304:                                                                                                  #                                  TO CONTINUE AT  SCALEPOP  THEREAFTER.
032859,000305: 
032860,000306: 26,2413           55724                           TS       POSEXIT                               
032861,000307: 
032862,000308: 26,2414           32426                           CA       V06N64                                #  G            VI            R TO SPLSH
032863,000309:                                                                                                  #                                          XXX.XX G     XXXXX. FPS    XXXX.X NM
032864,000310: 26,2415           55263                           TS       ENTRYVN                               #  FOR DISPLAY CALL IN OVERNOUT.
032865,000311: 
032866,000312: 26,2416           44712                           CS       ONE                                   #  IN CASE FLAG IS LEFT AT +1 BY DAP. THE
032867,000313: 26,2417           55727                           TS       P63FLAG                               #  -1 ASSURES THAT EXO-ATM DAP WILL NOT
032868,000314:                                                                                                  #                                          CALL P63 OUT OF SEQUENCE IN P66 .
032869,000315: 
032870,000316: 26,2420           05301        P63.1              TC       PHASCHNG                              
032871,000317: 26,2421           00004                           OCT      00004                                 #  DISABLE. DISPLAY RESTARTED VIA ENTRY.
032872,000318: 
032873,000319: 26,2422           05112                           TC       ENDOFJOB                              
032874,000320: 
032875,000321: 26,2423           01474        V06N60             VN       0660                                  
032876,000322: 26,2424           01475        V06N61             VN       0661                                  
032877,000323: 26,2425           01477        V06N63             VN       0663                                  
032878,000324: 26,2426           01500        V06N64             VN       0664                                  
032879,000325: 26,2427           52000        ENTCADR            CADR     STARTENT                              

Page 747

032881,000327: 26,2430  E7,1451                                  EBANK=   RTINIT                                #  TO CARY OVER INTO ENTRY STEERING.
032882,000328: 26,2430           03375 76067  POSECADR           2CADR    CM/POSE                               
032883,000329: 

Page 748

032885,000331:                                                                                                  #  PROGRAM-             P64
032886,000332:                                                                                                  #  MOD NO.-             1     SEPT. 19, 1967
032887,000333:                                                                                                  #  MOD BY-              R. HIRSCHKOP
032888,000334:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE:   8 MAY 68     REVISED COMMENTS FOR COLOSSUS
032889,000335:                                                                                                  #  FUNCTION-            1.  TO START ENTRY GUIDANCE AT .05G SELECTING ROLL  ATTITUDE, CONSTANT DRAG LEVEL, AND
032890,000336:                                                                                                  #                       DRAG THRESHOLD,  KA  , WHICH ARE KEYED TO THE .05G POINT.
032891,000337:                                                                                                  #                       2.  SELECT FINAL PHASE P67 IF V < 27000 FPS WHEN .2G OCCURS.
032892,000338:                                                                                                  #                       3.  ITERATE FOR UP-CONTROL SOLUTION  P65  IF V > 27000 FPS AND IF ALTITUDE RATE AND DRAG
032893,000339:                                                                                                  #                       LEVEL CONDITIONS ARE SATISFIED. ENTER P65 WHEN CONSTANT DRAG CONTROLLER HAS BROUGHT RANGE
032894,000340:                                                                                                  #                       AS PREDICTED TO WITHIN 25 NM OF DESIRED RANGE.
032895,000341:                                                                                                  #                       4.  SELECT FINAL PHASE  P67  IF NO UP-CONTROL SOLUTION EXISTS WITH VL > 18000 FPS.
032896,000342:                                                                                                  #  CALLING SEQUENCE-    BY RTB FROM REENTRY CONTROL
032897,000343:                                                                                                  #  EXIT-                BACK TO REENTRY CONTROL
032898,000344:                                                                                                  #  SUBROUTINE CALLS-    NEWMODEX
032899,000345: 
032900,000346: 
032901,000347: 26,2432                                           BANK     26                                    
032902,000348: 26,2000                                           SETLOC   P60S1                                 
032903,000349: 26,2000                                           BANK                                           
032904,000350: 
032905,000351:                                                                                                  #           THIS DISPLAY IS CALLED EACH PASS THROUGH STEERING. RESTART PROTECTION IS VIA STEERING.
032906,000352: 
032907,000353: 26,2432                                           COUNT*   $$/P64                                
032908,000354: 
032909,000355: 26,2432           05243        P64                TC       NEWMODEX                              #  ENTER VIA RTB WHEN .05G IS EXCEEDED.
032910,000356: 26,2433           00100                           MM       64         B-14                       
032911,000357: 26,2434           32437                           CA       V06N68                                #  ROLLC        VI            HDOT
032912,000358:                                                                                                  #                                          XXX.XX DEG   XXXXX. FPS    XXXXX. FPS
032913,000359: 26,2435           55263                           TS       ENTRYVN                               #  DISPLAY VIA OVERNOUT.
032914,000360: 
032915,000361: 26,2436           06030                           TC       DANZIG                                #  ... AND CONTINUE IN INITROLL ...
032916,000362: 
032917,000363: 
032918,000364: 26,2437           01504        V06N68             VN       0668                                  
032919,000365: 

Page 749

032921,000367:                                                                                                  #  PROGRAM:             P65
032922,000368:                                                                                                  #  MOD NO:  0           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP ADDITION.
032923,000369:                                                                                                  #  FUNCTION:            TO CONTINUE ENTRY GUIDANCE, USING THE UP-CONTROL PHASE TO STEER TO A CONTROLLED EXIT
032924,000370:                                                                                                  #                       CONDITION. THIS PHASE TERMINATES  A) IF D  < Q7 FPSS, GO TO P66   ,
032925,000371:                                                                                                  #                                                         B) IF RDOT NEG, AND IF V < VL +500 FPS, GO TO P67.
032926,000372:                                                                                                  #  CALLING SEQUENCE:    BY RTB FROM REENTRY CONTROL
032927,000373:                                                                                                  #  EXIT:                BACK TO REENTRY CONTROL, OR TO ENDOFJOB.
032928,000374:                                                                                                  #  SUBROUTINE CALLS:    NEWMODEX
032929,000375: 
032930,000376: 26,2440                                           COUNT*   $$/P65                                
032931,000377: 
032932,000378: 26,2440           05243        P65                TC       NEWMODEX                              #  ENTER VIA RTB WHEN RANGE < 25 N M OF
032933,000379: 26,2441           00101                           MM       65         B-14                       #  TARGET.
032934,000380: 
032935,000381: 26,2442           34760                           CA       PRIO13                                
032936,000382: 26,2443           05027                           TC       NOVAC                                 
032937,000383: 26,2444     1263                                  EBANK=   ENTRYVN                               
032938,000384: 26,2444           02456 54062                     2CADR    P65.1                                 
032939,000385: 26,2446           05261                           TC       2PHSCHNG                              #  2 PHASE CHG REQUIRED TO PREVENT RE-
032940,000386: 26,2447           00554                           OCT      00554                                 #  STARTING FLASHING DISPLAY TWICE.
032941,000387: 26,2450           10035                           OCT      10035                                 #  4.55 SPOT AND SERVICER, HERE.
032942,000388: 26,2451           06006                           TC       INTPRET                               
032943,000389: 26,2452           47131                           SSP      RTB                                   
032944,000390: 26,2453           03646                                    GOTOADDR                              #  CHANGE ENTRY MODE TO UPCONTRL.
032945,000391: 26,2454           53027                                    UPCONTRL                              
032946,000392: 26,2455           52120                                    REFAZE10                              #  GO HERE TO REESTABLISH ENTRY SEQUENCER.
032947,000393:                                                                                                  #                                          AND CONTINUE AT UPCONTRL...
032948,000394: 
032949,000395: 26,2456           05447        P65.1              TC       DOWNFLAG                              
032950,000396: 26,2457           00134                           ADRES    ENTRYDSP                              #  ENTRYDSP = 92D  BIT 13 FLAG 6
032951,000397: 
032952,000398: 26,2460           32472                           CA       V16N69                                #  ROLLC        DL  (Q7)      VL
032953,000399: 26,2461           04555                           TC       BANKCALL                              #  XXX.XX DEG   XXX.XX G      XXXXX. FPS
032954,000400: 26,2462           20763                           CADR     GOFLASHR                              
032955,000401: 26,2463           02460                           TC       -3                                    #  NODOFLAG IS SET..
032956,000402: 26,2464           02467                           TC       +3                                    
032957,000403: 26,2465           02460                           TC       -5                                    
032958,000404: 26,2466           02232                           TC       P61.3                                 #  EST. GRP 4 FOR DSPLAY AND DO ENDOFJOB
032959,000405:                                                                                                  #                                          IF PROCEED, CONTINUE.
032960,000406: 26,2467           05435                           TC       UPFLAG                                
032961,000407: 26,2470           00134                           ADRES    ENTRYDSP                              #  ENTRYDSP = 92D   BIT 13 FLAG 6
032962,000408: 
032963,000409: 26,2471           02420                           TC       P63.1                                 #  DISABLE GRP 4,START UP ENTRY DISPLAY
032964,000410: 
032965,000411:                                                                                                  #                                          N06V68 VIA OVERNOUT, AS USED IN P64.
032966,000412: 
032967,000413: 26,2472           04105        V16N69             VN       1669                                  
032968,000414: 

Page 750

032970,000416:                                                                                                  #  PROGRAM:             P66
032971,000417:                                                                                                  #  MOD NO:  0           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     COLOSSUS GSOP ADDITIONS.
032972,000418:                                                                                                  #  FUNCTION:            KEEP CM ATTITUDE IN TRIM TO THE RELATIVE VELOCITY VECTOR. ENTRY GUIDANCE STOPS GENERATING
032973,000419:                                                                                                  #                       ROLL COMMANDS UNTIL DRAG BUILDS UP TO  Q7+0.5 FPSS.
032974,000420: 
032975,000421:                                                                                                  #  CALLING SEQUENCE:    VIA RTB FROM REENTRY CONTROL.
032976,000422:                                                                                                  #  EXIT:                BACK TO REENTRY CONTROL.
032977,000423:                                                                                                  #  SUBROUTINE CALLS:    NEWMODEX
032978,000424: 
032979,000425: 26,2473                                           COUNT*   $$/P66                                
032980,000426: 
032981,000427: 26,2473           05243        P66                TC       NEWMODEX                              #  ENTER VIA RTB WHEN D < Q7 FPSS
032982,000428: 26,2474           00102                           MM       66         B-14                       
032983,000429: 
032984,000430: 26,2475           34745                           CA       V06N22                                #  OGA          IGA           MGA
032985,000431:                                                                                                  #  XXX.XX DEG   XXX.XX DEG    XXX.XX DEG
032986,000432: 26,2476           02502                           TC       P66END                                #  IN CASE CAME FROM P65, GO DISABLE GRP4,
032987,000433:                                                                                                  #                                          AND SET ENTRYDSP TO DO DISPLAY VIA
032988,000434:                                                                                                  #                                          OVERNOUT.
032989,000435:                                                                                                  #                                          ... AND CONTINUE AT KEP2 
032990,000436: 

Page 751

032992,000438:                                                                                                  #  P67
032993,000439: 
032994,000440:                                                                                                  #  PROGRAM-      P67
032995,000441:                                                                                                  #  MOD NO.-      0       MAR. 16, 1967
032996,000442:                                                                                                  #  MOD BY-       R. HIRSCHKOP
032997,000443:                                                                                                  #  FUNCTION-     TO TERMINATE STEERING WHEN THE CM VELOCITY WRT EARTH = 1000 FT/SEC
032998,000444:                                                                                                  #  CALLING SEQUENCE-
032999,000445:                                                                                                  #  EXIT-         TO POOH
033000,000446:                                                                                                  #  SUBROUTINE CALLS-  GOFLASH
033001,000447: 
033002,000448:                                                                                                  #  THIS DISPLAY IS CALLED EACH PASS THROUGH STEERING.  RESTART PROTECTION IS VIA STEERING.
033003,000449: 
033004,000450: 26,2477                                           COUNT*   $$/P67                                
033005,000451: 
033006,000452: 26,2477           05243        P67                TC       NEWMODEX                              #  ENTER VIA RTB
033007,000453: 26,2500           00103                           MM       67         B-14                       
033008,000454: 26,2501           32510                           CA       V06N66                                #  ROLLC         XRNGERR         DNRNGERR
033009,000455:                                                                                                  #  XXX.XX DEG    XXXX.X NM       XXXX.X NM
033010,000456: 26,2502           55263        P66END             TS       ENTRYVN                               #  DISPLAY VIA OVERNOUT.
033011,000457: 
033012,000458: 26,2503           05435                           TC       UPFLAG                                #  (IN CASE CAME FROM P65. ENTRY DISPLAY
033013,000459: 26,2504           00134                           ADRES    ENTRYDSP                              #  WILL FLUSH FLASHING DISP. IF STILL ON)
033014,000460:                                                                                                  #                                          BIT 13 FLAG 6
033015,000461: 26,2505           05301        KILLGRP4           TC       PHASCHNG                              #  DISABLE GRP4, IN CASE CAME FROM HUNTEST.
033016,000462: 26,2506           00004                           OCT      00004                                 #  (COME TO KILLGRP4 VIA RTB,RET TO CALLER)
033017,000463: 
033018,000464: 26,2507           06030                           TC       DANZIG                                #  ... AND CONTINUE AT PREDICT3 ...
033019,000465: 
033020,000466: 26,2510           01502        V06N66             VN       0666                                  
033021,000467: 
033022,000468: 26,2511                                           BANK     26                                    
033023,000469: 26,2000                                           SETLOC   P60S2                                 
033024,000470: 26,2000                                           BANK                                           
033025,000471: 
033026,000472: 26,2511           32542        P67.1              CA       V16N67                                #  RTOGO        LAT           LONG
033027,000473:                                                                                                  #  XXXX.X NM    XXX.XX DEG    XXX.XX DEG
033028,000474: 26,2512           04555                           TC       BANKCALL                              
033029,000475: 26,2513           20624                           CADR     GOFLASH                               
033030,000476: 26,2514           02517                           TC       +3                                    #  EFFECTIVE GOTOPOOH
033031,000477: 26,2515           02517                           TC       +2                                    
033032,000478: 26,2516           02511                           TC       P67.1                                 #  REDO
033033,000479: 
033034,000480: 26,2517           46214                           CS       THREE                                 #  TURN OFF ENTRY DAP
033035,000481: 26,2520           00004                           INHINT                                         
033036,000482: 26,2521           70102                           MASK     CM/FLAGS                              #  CM/DSTBY , GAMDIFSW
033037,000483: 26,2522           54102                           TS       CM/FLAGS                              
033038,000484: 26,2523           00003                           RELINT                                         
033039,000485: 26,2524           00006                           EXTEND                                         
033040,000486: 26,2525           32642                           DCA      SERVCAD2                              

Page 752

033042,000488: 26,2526           53223                           DXCH     AVEGEXIT                              
033043,000489: 26,2527           14106                           TCF      GOTOPOOH                              
033044,000490: 

Page 753

033046,000492: 26,2530           43175        P67.2              VLOAD    CLEAR                                 #  CALC PRESENT LAT, LONG, ALT.
033047,000493: 26,2531           01171                                    RN                                    
033048,000494: 26,2532           00662                                    ERADFLAG                              #  USE PAD RAD FOR ALT.(NOT SEEN ANYWAY)
033049,000495: 26,2533           16152                           STODL    ALPHAV                                
033050,000496: 26,2534           01205                                    PIPTIME                               #  USE TIME OF RN
033051,000497: 26,2535           45014                           CLEAR    CALL                                  
033052,000498: 26,2536           01663                                    LUNAFLAG                              
033053,000499: 26,2537           26322                                    LAT-LONG                              
033054,000500: 26,2540           77634        P67.3              RTB                                            #  ENTRY EXIT THAT OMITS DISPLAY.
033055,000501: 26,2541           53603                                    SERVNOUT                              
033056,000502: 
033057,000503: 26,2542           04103        V16N67             VN       1667                                  
033058,000504: 26,2543     4270               OCT41              =        33DEC                                 
033059,000505: 26,2543  26,2641               SERVCAD2           =        SERVCAD1                              
033060,000506: 

Page 754

033062,000508:                                                                                                  #  SUBROUTINE NAME:     S61.1    
033063,000509:                                                                                                  #  MOD NO:  0                                                              DATE: 21 FEB 67
033064,000510:                                                                                                  #  MOD BY:  RR BAIRNSFATHER                              LOG SECTION:    P61-P67
033065,000511:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER         DATE:           22 JUN 67       RESTARTS.
033066,000512:                                                                                                  #  FUNCTIONAL DESCRIPTION:     CALLED BY BOTH P61 AND P62
033067,000513:                                                                                                  #           FIRST,TEST TO SEE IF   AVERAGEG   IS ON. IF NOT, UPDATE THE STATE VECTOR TO PRESENT TIME + TOLERANCE
033068,000514:                                                                                                  #           AND TURN ON   AVERAGEG   AT THAT TIME, AND CONTINUE.   OTHERWISE CONTINUE:   SEE IF  IMU Y AXIS IS
033069,000515:                                                                                                  #           WITHIN 30 DEG OF V*R.  IF YES, EXIT SUBROUTINE S61.1.    IF NO,  SEE IF -Y AXIS OF IMU IS WITHIN
033070,000516:                                                                                                  #           30 DEG OF V*R.   IF YES, DISPLAY ALARM:  01427   IMU REVERSED.
033071,000517:                                                                                                  #                            IF NO, DISPLAY ALARM:   01426   IMU UNSATISFACTORY.
033072,000518:                                                                                                  #           IN EITHER OF THESE LAST 2 CASES, WAIT  10 SEC  AND THEN EXIT SUBROUTINE  S61.1.
033073,000519: 
033074,000520:                                                                                                  #  REMARK:              THERE WILL BE A SHORT 10 SEC DELAY IF AN ALARM EXIT IS TAKEN. THE DELAY FOR INTEGRATION IS
033075,000521:                                                                                                  #                       AS SHORT AS CAN BE MADE, BUT IS ARBITRARY SINCE IT  DEPENDS ON THE AGE OF THE STATE VECTOR.
033076,000522: 
033077,000523:                                                                                                  #  CALLING SEQUENCE:  CALL
033078,000524:                                                                                                  #                            S61.1
033079,000525:                                                                                                  #                     C(MPAC) UNSPECIFIED
033080,000526:                                                                                                  #                     PUSHLOC UNSPECIFIED
033081,000527: 
033082,000528:                                                                                                  #  SUBROUTINES CALLED:  LOADTIME, CSMPREC, TPAGREE,
033083,000529:                                                                                                  #                       WAITLIST, JOBSLEEP, JOBWAKE, PREREAD, ALARM, GODSPR, BANKCALL, DELAYJOB
033084,000530:                                                                                                  #  NORMAL EXIT MODES:   RVQ
033085,000531:                                                                                                  #  ALARMS:  01426     IMU UNSATISFACTORY
033086,000532:                                                                                                  #           01427     IMU REVERSED
033087,000533:                                                                                                  #  OUTPUT:  POSSIBLE ALARMS
033088,000534:                                                                                                  #           POSSIBLY TDEC1, RATT, VATT, RN, VN
033089,000535:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED:
033090,000536:                                                                                                  #           AVEGFLAG               AVERAGEG ON OR OFF                      LEFT BY SERVICER
033091,000537:                                                                                                  #           PIPTIME  (-28) CS      TIME OF PIPA UPDATE                     LEFT BY READACCS
033092,000538:                                                                                                  #           RN     (-29) M         STATE VECTOR                            LEFT BY AVERAGEG
033093,000539:                                                                                                  #           VN     (-7) M/CS       STATE VECTOR                            LEFT BY AVERAGEG
033094,000540:                                                                                                  #           REFSMMAT  (-1)         .5 REF TO SM MATRIX                     LEFT BY LAST IMU ALIGNMENT
033095,000541:                                                                                                  #  DEBRIS:  QPRET
033096,000542:                                                                                                  #           POSSIBLY PIPTIME1, RATT, VATT, TDEC1, RN1, VN1, QTEMP, X1      IF UPDATED
033097,000543:                                                                                                  #           PUSH LIST LOCS USED BY CSMPREC
033098,000544: 
033099,000545: 26,2543  E6,1661                                  EBANK=   AOG                                   #  FOR 60GENRET , S61DT
033100,000546: 26,2543                                           BANK     26                                    
033101,000547: 26,2000                                           SETLOC   P60S3                                 
033102,000548: 26,2000                                           BANK                                           
033103,000549: 
033104,000550: 26,2543                                           COUNT*   $$/S61.1                              
033105,000551: 
033106,000552: 26,2543           00006        S61.1              EXTEND                                         
033107,000553: 26,2544           23773                           QXCH     60GENRET                              #  SAVE RET ADDR IN EB 6
033108,000554: 26,2545           04555                           TC       BANKCALL                              
033109,000555: 26,2546           17573                           CADR     R02BOTH                               
033110,000556: 26,2547           06006                           TC       INTPRET                               

Page 755

033112,000558: 26,2550           45014                           BON      CALRB                                 
033113,000559: 26,2551           00716                                    AVEGFLAG                              #  IS AVERAGEG ON
033114,000560: 26,2552           54603                                    S61.1A                                #  YES
033115,000561: 26,2553           27570                                    MIDTOAV2                              #  GET FUTURE STATE VECTOR SOON AS CAN
033116,000562: 
033117,000563: 26,2554           30155                           CA       MPAC       +1                         #  RETURN INHINTED ***
033118,000564: 26,2555           55774                           TS       S61DT                                 #  FOR RESTART.
033119,000565: 26,2556           05140                           TC       WAITLIST                              
033120,000566: 26,2557  E7,1431                                  EBANK=   DVCNTR                                
033121,000567: 26,2557           02564 54067                     2CADR    S61.1C                                
033122,000568: 26,2561           05301                           TC       PHASCHNG                              
033123,000569: 26,2562           40434                           OCT      40434                                 
033124,000570: 26,2563           05112                           TC       ENDOFJOB                              
033125,000571: 
033126,000572: 26,2564           34760        S61.1C             CA       PRIO13                                
033127,000573: 26,2565           05042                           TC       FINDVAC                               
033128,000574: 26,2566  E6,1661                                  EBANK=   AOG                                   
033129,000575: 26,2566           02602 54066                     2CADR    S61.1A     -1                         
033130,000576: 
033131,000577: 26,2570           00006                           EXTEND                                         
033132,000578: 26,2571           32642                           DCA      SERVCAD1                              #  HE WHO STARTS AVERAGEG MUST SERVICE
033133,000579: 26,2572           53223                           DXCH     AVEGEXIT                              #  THE EXIT.
033134,000580: 
033135,000581: 26,2573           05261                           TC       2PHSCHNG                              
033136,000582: 26,2574           00454                           OCT      00454                                 
033137,000583: 26,2575           00415                           OCT      00415                                 
033138,000584: 
033139,000585: 26,2576           34753                           CA       EBENTRY                               #  SET EB= 7 FOR PREREAD.
033140,000586: 26,2577           54003                           TS       EBANK                                 
033141,000587: 
033142,000588: 26,2600           04574                           TC       POSTJUMP                              
033143,000589: 26,2601           76604                           CADR     PREREAD                               #  PREREAD DOES TC TASKOVER.
033144,000590: 
033145,000591: 26,2602           06006                           TC       INTPRET                               
033146,000592: 26,2603           77204        S61.1A             BOVB     VLOAD                                 
033147,000593: 26,2604           57314                                    TCDANZIG                              #  TURN OFF OVFIND, IF ON
033148,000594: 26,2605           01177                                    VN                                    #  VN   (-7) M/CS
033149,000595: 26,2606           64235                           VXV      MXV                                   
033150,000596: 26,2607           01171                                    RN                                    #  RN  (-29)  M
033151,000597: 26,2610           01736                                    REFSMMAT                              #  .5 UNIT MATRIX
033152,000598: 26,2611           71256                           UNIT     DLOAD                                 
033153,000599: 26,2612           00160                                    MPAC       +3                         #  GET  COS(THETA)/2
033154,000600: 26,2613           43240                           BMN      DAD                                   
033155,000601: 26,2614           54621                                    S61.1B                                #  DO TEST ON -YSM
033156,000602: 26,2615           14644                                    C(30)LIM                              #  = 1.0 -.5 COS(30)
033157,000603: 26,2616           47004                           BOVB     RTB                                   
033158,000604: 26,2617           54640                                    RETRN1                                
033159,000605: 26,2620           54625                                    RETRN3                                

Page 756

033161,000607: 26,2621           43276        S61.1B             DCOMP    DAD                                   
033162,000608: 26,2622           14644                                    C(30)LIM                              #  = 1.0- .5 COS(30)
033163,000609: 26,2623           77404                           BOVB     EXIT                                  
033164,000610: 26,2624           54630                                    RETRN2                                
033165,000611: 
033166,000612: 26,2625           05537        RETRN3             TC       ALARM                                 
033167,000613: 26,2626           01426                           OCT      01426                                 #  IMU UNSATISFACTORY
033168,000614: 26,2627           02632                           TC       RETRN2     +2                         
033169,000615: 
033170,000616: 26,2630           05537        RETRN2             TC       ALARM                                 
033171,000617: 26,2631           01427                           OCT      01427                                 #  IMU REVERSED
033172,000618: 
033173,000619: 26,2632           34743                 +2        CAF      V05N09                                
033174,000620: 26,2633           04555                           TC       BANKCALL                              
033175,000621: 26,2634           20602                           CADR     GODSPR                                #  DO DISPLAY
033176,000622: 26,2635           32645                           CA       10SECS                                
033177,000623: 26,2636           04555                           TC       BANKCALL                              
033178,000624: 26,2637           01730                           CADR     DELAYJOB                              
033179,000625: 
033180,000626: 26,2640           01773        RETRN1             TC       60GENRET                              
033181,000627: 
033182,000628: 26,2641  E7,1431                                  EBANK=   DVCNTR                                
033183,000629: 26,2641           03136 76067  SERVCAD1           2CADR    SERVEXIT                              
033184,000630: 26,2643           22111 17335  C(30)LIM           2DEC     .566985                               #  = 1.0 - .5 COS(30)
033185,000631: 26,2645           01750        10SECS             DEC      1000       B-14                       #  1000 CS
033186,000632: 26,2646           00000 13560  60SECDP            2DEC     6000       B-28                       #  6000 CS
033187,000633: 

Page 757

033189,000635:                                                                                                  #  PROGRAM NAME:      S61.2                                                DATE:           14 FEB 67
033190,000636:                                                                                                  #  MOD NO:  1                                                              LOG SECTION:    P61-P67
033191,000637:                                                                                                  #  MOD BY:  MORTH / BAIRNSFATHER
033192,000638:                                                                                                  #  MOD NO:  2           MOD BY:  MORTH/BAIRNSFATHER   DATE:  11 MAY 67     ADD 2ND ITER FOR ERAD AT 400K FT.
033193,000639:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:  21 NOV 67     VARIABLE MU ADDED.
033194,000640:                                                                                                  #  MOD NO:  4           MOD BY:  RR BAIRNSFATHER      DATE:  21 MAR 68     DIFFERENT EARTH/MOON SCALES IN TFF'S
033195,000641:                                                                                                  #  FUNCTIONAL DESCRIPTION:      CALLED BY P61.  PROVIDES DISPLAYS FOR NOUNS  N60  AND  N63  .
033196,000642:                                                                                                  #           PROGRAM CALCULATES ENTRY DISPLAY OF MAXIMUM ACCELERATION EXPECTED  (GMAX)  AND ALSO THE EXPECTED
033197,000643:                                                                                                  #           INERTIAL VELOCITY (VPRED) AND ENTRY ANGLE   (GAMMAEI)   THAT WILL OBTAIN AT 400K FT ABOVE THE FISCHER
033198,000644:                                                                                                  #           ELLIPSOID.   PROGRAM ALSO CALCULATES A SECOND DISPLAY RELATIVE  TO THE EMSALT  ABOVE FISCHER ELLIPSOID
033199,000645:                                                                                                  #           AND CONSISTS OF RANGE TO SPLASH FROM NOW (RTGO) , PREDICTED INERTIAL VELOCITY (VIO) , AND THE TIME TO
033200,000646:                                                                                                  #           GO FROM NOW (TTE) .
033201,000647:                                                                                                  #  CALLING SEQUENCE:  CALL
033202,000648:                                                                                                  #                            S61.2
033203,000649:                                                                                                  #           C(MPAC) UNSPECIFIED
033204,000650:                                                                                                  #           PUSHLOC WILL BE SET TO ZERO.
033205,000651: 
033206,000652:                                                                                                  #  SUBROUTINES CALLED:  TFFCONIC,  CALCTFF,  TFF/TRIG,  FISHCALC,  GETERAD,  VGAMCALC
033207,000653:                                                                                                  #  NORMAL EXIT MODES:    RTB  P61.1
033208,000654:                                                                                                  #  ALARMS:  NONE
033209,000655:                                                                                                  #  OUTPUT:  THE FOLLOWING REGISTERS ARE WRITTEN IN FOR USE BY DISPLAYS
033210,000656:                                                                                                  #           GMAX   100 GMAX  (-14)  G,S     MAXIMUM ACCELERATION
033211,000657:                                                                                                  #           VPRED  (-7)  M/CS      PREDICTED VELOCITY AT 400K FT
033212,000658:                                                                                                  #           GAMMAEI  GAMMA/360     PREDICTED GAMMA    AT 400K FT
033213,000659:                                                                                                  #                                  FOR TM, DP(GAMMAEI) = (GAMMAEI, RTGO) / 360
033214,000660:                                                                                                  #           RTGO   THETAH/360      RANGE ANGLE TO SPLASH FROM EMSALT       EMSALT IS PAD LOADED
033215,000661:                                                                                                  #           VIO    (-7) M/CS       INERTIAL VELOCITY AT       EMSALT       EMSALT IS PAD LOADED
033216,000662:                                                                                                  #           TTE    (-28) CS        TIME TO                    EMSALT       EMSALT IS PAD LOADED
033217,000663: 
033218,000664:                                                                                                  #           PUSHLOC = 0
033219,000665:                                                                                                  #           CONIC PARAMETERS STORED IN VAC AREA (SEE TFF SUBROUTINES)
033220,000666:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED:
033221,000667:                                                                                                  #           RONE   (-29) M         STATE VECTOR                            LEFT BY USER
033222,000668:                                                                                                  #           VONE   (-7)  M/CS      STATE VECTOR                            LEFT BY USER
033223,000669:                                                                                                  #           URONE  UR/2                                                    LEFT BY USER
033224,000670:                                                                                                  #           UNI    (-1)            UNIT NORMAL V*R                         LEFT BY ENTRY / P61
033225,000671:                                                                                                  #           THETAH  THETAH/360     RANGE ANGLE                             LEFT BY ENTRY / P61
033226,000672:                                                                                                  #           UNITW  (0)             UNIT POLAR VECTOR                       LEFT BY  PAD LOAD
033227,000673:                                                                                                  #           EMSALT  (-29) M        EMS INTERFACE ALTITUDE                  LEFT BY  PAD LOAD
033228,000674:                                                                                                  #                                  ORBITAL REENTRY:  284643 FT, LUNAR REENTRY:  297431 FT.
033229,000675:                                                                                                  #  DEBRIS:  QPRET,
033230,000676:                                                                                                  #           ALL PDL LOCATIONS ABOVE 12D, INCLUDING X1,X2,S1,S2
033231,000677:                                                                                                  #           ALSO PDL+0 ... PDL+5, WHERE INITIAL PUSHLOC = PDL
033232,000678: 

Page 758

033234,000680: 
033235,000681: 
033236,000682:                                                                                                  #  THE FOLLOWING PUSH LIST LOCATIONS HAVE BEEN RESERVED FOR TFF ROUTINES AND ARE REPEATED HERE FOR CONVENIENCE.
033237,000683: 
033238,000684:                                                                                                  #  OF COURSE  FOR S61.2 USAGE, EARTH ORIGIN SCALING IS USED.
033239,000685: 
033240,000686:                                                                                                  #                                                               BELOW      E:   IS USED FOR EARTH ORIGIN SCALE
033241,000687:                                                                                                  #                                                                          M:   IS USED FOR MOON ORIGIN SCALE
033242,000688: 
033243,000689:                                                                                                  #                                          RTERM    =      18D             TERMINAL RADIUS M  E: (-29)  M: (-27)
033244,000690:                                                                                                  #                                          NRTERM   =      16D             TERMINAL RADIUS M  E: (-29+NR)
033245,000691:                                                                                                  #                                                                                             M: (-27+NR)
033246,000692:                                                                                                  #                                          RMAG1    =      12D             PRESENT RADIUS M   E: (-29)  M: (-27)
033247,000693:                                                                                                  #                                          NRMAG    =      32D             PRESENT RADIUS M   E: (-29+NR)
033248,000694:                                                                                                  #                                                                                             M: (-27+NR)
033249,000695:                                                                                                  #                                          SDELF/2                         SIN(THETA)  /2
033250,000696:                                                                                                  #                                          CDELF/2  =      14D             COS(THETA) /2
033251,000697:                                                                                                  #                                          TFFX     =      34D             X, ARGUMENT OF SERIES T(X).
033252,000698:                                                                                                  #                                          TFFTEM   =      36D             ARG  FOR TRANSFER ANGLE CALCULATION.
033253,000699:                                                                                                  #                                          TFFNP    =      28D             LC P  M  E: (-38+2NR)   M: (-36+2NR)
033254,000700:                                                                                                  #                                          TFF/RTMU =      30D             1/SQRT(MU)         E: (17)   M: (14)
033255,000701:                                                                                                  #                                          TFFVSQ   =      20D             -(VN.VN/MU)  1/M   E: (20)   M: (18)
033256,000702: 

Page 759

033258,000704: 34,3654                                           BANK     34                                    
033259,000705: 26,2000                                           SETLOC   P60S2                                 
033260,000706: 26,2000                                           BANK                                           
033261,000707: 
033262,000708: 26,2650                                           COUNT*   $$/S61.2                              
033263,000709: 
033264,000710:                                                                                                  #                                          PDL LEFT AT ZERO BY TARGETNG
033265,000711: 
033266,000712: 26,2650           45345        S61.2              DLOAD    DSU                                   
033267,000713: 26,2651           02020                                    EMSALT                                
033268,000714: 26,2652           15000                                    290KFT                                
033269,000715: 26,2653           71244                           BPL      DLOAD                                 
033270,000716: 26,2654           54774                                    LUNENT                                
033271,000717: 26,2655           17316                                    1/RTMU                                #  ESTABLISH MU FOR ORBITAL ENTRIES
033272,000718: 26,2656           77624        CALLCON            CALL                                           
033273,000719: 26,2657           56721                                    TFFCONIC                              #  FILL VAC AREA WITH CONIC PARAMETERS
033274,000720: 
033275,000721: 26,2660           45145                           DLOAD    CALL                                  
033276,000722: 26,2661           15020                                    RTRIAL                                #  1ST GUESS AT TERMINAL RADIUS  (-29)
033277,000723: 26,2662           57031                                    CALCTFF                               #  SAVES MPAC IN RTERM  (18D)
033278,000724: 
033279,000725: 26,2663           77624                           CALL                                           #  CALC SDELF/2,  CDELF/2
033280,000726: 26,2664           56573                                    TFF/TRIG                              #  RETURN WITH S(THETA) IN MPAC
033281,000727: 
033282,000728: 26,2665           77624                           CALL                                           #  GET FISCHER RADIUS (-29) M
033283,000729: 26,2666           55027                                    FISHCALC                              #  ANS IN MPAC AND IN ERADM.
033284,000730: 
033285,000731: 26,2667           45015                           DAD      CALL                                  
033286,000732: 26,2670           02020                                    EMSALT                                
033287,000733: 26,2671           57031                                    CALCTFF                               #  SAVES MPAC IN  RTERM  (18D)
033288,000734: 
033289,000735: 26,2672           77676                           DCOMP                                          #  NEGATIVE AS IN COUNTDOWN.
033290,000736: 26,2673           03733                           STORE    TTE1                                  #  DECR TTE FROM BASE TTE1. (RESTART)
033291,000737:                                                                                                  #                                          DNLIST AND DSKY WILL USE TTE.
033292,000738: 26,2674           37727                           STCALL   TTE                                   #  LET MISS CONTRL DECR BY ELAPSED TIME
033293,000739:                                                                                                  #                                          TTE= TIME FROM NOW TO EMSALT +FISCHER
033294,000740: 
033295,000741: 26,2675           56573                                    TFF/TRIG                              #  S(THETA) IN MPAC ON RETURNING
033296,000742:                                                                                                  #                                          AND THETA= RANGE FROM NOW TO EMSALT
033297,000743: 
033298,000744: 26,2676           77624                           CALL                                           
033299,000745: 26,2677           55027                                    FISHCALC                              
033300,000746: 26,2700           77624                           CALL                                           
033301,000747: 26,2701           56626                                    VRCALC                                
033302,000748: 26,2702           77624                           CALL                                           
033303,000749: 26,2703           56613                                    DISPTARG                              
033304,000750: 26,2704           77624                           CALL                                           
033305,000751: 26,2705           56613                                    DISPTARG                              
033306,000752: 26,2706           37714                           STCALL   RTGO                                  

Page 760

033308,000754: 26,2707           55050                                    VGAMCALC                              
033309,000755: 
033310,000756: 26,2710           77605                           DMP                                            #  MPAC = GAMMA
033311,000757:                                                                                                  #  PDL0 HAS VGAM.
033312,000758: 26,2711           43265                           BDDV     DAD                                   
033313,000759: 26,2712           15026                                    VEMSCON                               #  -HS D 180/PI (-14)
033314,000760: 26,2713           00001                                    0                                     #  VGAM FROM PDL0.
033315,000761: 26,2714           17725                           STODL    VIO                                   #  PREDICTED VELOCITY AT EMSALT.
033316,000762: 
033317,000763:                                                                                                  #                               GAMMA AND VGAM AT 300K FT ARE REQUIRED BY  GMAX
033318,000764:                                                                                                  #                               ALGORITHM.
033319,000765: 
033320,000766: 26,2715           02241                                    ERADM                                 #  EARTH RADIUS FROM GETERAD     (-29) M
033321,000767:                                                                                                  #                                          = FISCHER RADIUS  (-29)
033322,000768: 26,2716           77615                           DAD                                            
033323,000769: 26,2717           06462                                    300KFT                                #  M  (-29)
033324,000770: 26,2720           34023                           STCALL   RTERM                                 #  TERMINAL RADIUS  M  (-29)
033325,000771: 
033326,000772: 26,2721           55045                                    PREVGAM                               #  VGAMCALC WITH NEW RTERM
033327,000773: 
033328,000774:                                                                                                  #  VBAR = (V(FPS)  - 36KF/S) / 20KF/S
033329,000775:                                                                                                  #   GMAX = (4/(1+ 4.8 VBARSQ))(GAM -6.05 -2.4 VBARSQ) -10(L/D -.3) + 10     ASSUME L/D = 0.3, BANK =0.
033330,000776: 
033331,000777: 
033332,000778:                                                                                                  #                                          GMAXCALC
033333,000779: 26,2722           45325                           PDDL     DSU                                   #  GAM TO PDL2
033334,000780: 26,2723           00001                                    0                                     #  VGAM IS IN PDL0  (-7)
033335,000781: 26,2724           15004                                    36KFT/S                               #  (-7)   M/CS
033336,000782: 26,2725           63471                           DDV      DSQ                                   
033337,000783: 26,2726           15006                                    20KFT/S                               #  (-6)   M/CS
033338,000784: 26,2727           00001                           STORE    0                                     #  VBARSQ  (-2)  TO PDL0
033339,000785: 
033340,000786: 26,2730           43205                           DMP      DAD                                   
033341,000787: 26,2731           15010                                    KR1                                   
033342,000788:                                                                                                  #                                          GAM,    POS DOWN, FROM PDL2
033343,000789: 26,2732           41215                           DAD      DMP                                   
033344,000790: 26,2733           15012                                    -6.05DEG                              
033345,000791: 26,2734           15014                                    KR2                                   
033346,000792: 26,2735           77725                           PDDL                                           #  XCH PDL+0 FOR VBARSQ  (-2)
033347,000793: 26,2736           43271                           DDV      DAD                                   
033348,000794: 26,2737           15024                                    KR4                                   
033349,000795: 26,2740           17330                                    DP2(-4)                               
033350,000796: 26,2741           77665                           BDDV                                           
033351,000797:                                                                                                  #                                          NUM FROM PDL+0
033352,000798: 26,2742           51015                           DAD      BPL                                   
033353,000799: 26,2743           15016                                    KR3                                   
033354,000800: 26,2744           54747                                    +3                                    
033355,000801: 26,2745           77745                           DLOAD                                          
033356,000802: 26,2746           15332                                    HI6ZEROS                              
033357,000803: 26,2747           17722                           STODL    GMAX                                  #  100 GMAX  (-14)

Page 761

033359,000805:                                                                                                  #  DISPLAY USES GMAX AS SP, SO LO WORD IS WRITTEN OVER BY VPRED.
033360,000806: 
033361,000807: 26,2750           02241                                    ERADM                                 #  = FISCHER RADIUS  (-29) M
033362,000808: 26,2751           45015                           DAD      CALL                                  #  2 ND  ITERATION FOR FISCHER RADIUS
033363,000809: 26,2752           15022                                    400KFT                                
033364,000810: 26,2753           57031                                    CALCTFF                               #  ESTABLISH TRANSFER ANGLE DATA.
033365,000811: 26,2754           77624                           CALL                                           
033366,000812: 26,2755           56573                                    TFF/TRIG                              #  GET SIN, COS DELF
033367,000813: 26,2756           77624                           CALL                                           
033368,000814: 26,2757           55027                                    FISHCALC                              #  GET CORRESPONDING FISCHER RADIUS.
033369,000815: 
033370,000816: 26,2760           73015                           DAD      LXA,2                                 #  SAVE HI-WORD FOR DOWNLIST.
033371,000817: 26,2761           15022                                    400KFT                                #  M  (-29)
033372,000818: 26,2762           03713                                    RTGO                                  #  (RANGE ANGLE FROM EMSALT)/360
033373,000819: 26,2763           34023                           STCALL   RTERM                                 
033374,000820: 26,2764           55045                                    PREVGAM                               #  VGAMCALC WITH NEW RTERM
033375,000821: 
033376,000822: 26,2765           67076                           DCOMP    SXA,2                                 #  HI-WORD OF EACH ON DOWNLIST.
033377,000823: 26,2766           00155                                    MPAC       +1                         
033378,000824: 26,2767           17771                           STODL    GAMMAEI                               #  CONIC GAMMA/360 AT 400K FT.   ( HI-WORD)
033379,000825:                                                                                                  #                                          CONIC RTGO/360 FROM EMSALT    (LOW-WORD)
033380,000826:                                                                                                  #                                          FOR TM, DP(GAMMAEI)= (GAMMA, RTGO)/360
033381,000827: 
033382,000828:                                                                                                  #                                          VGAM FROM PDL+0   (-7)
033383,000829: 26,2770           77626                           STADR                                          
033384,000830: 26,2771           74010                           STORE    VPRED                                 #  CONIC VELOCITY AT 400K FT
033385,000831: 
033386,000832: 26,2772           77634                           RTB                                            
033387,000833: 26,2773           54267                                    P61.1                                 
033388,000834:                                                                                                  #                                          PDL BACK TO ZERO.
033389,000835: 
033390,000836: 26,2774           52145        LUNENT             DLOAD    GOTO                                  
033391,000837: 26,2775           06456                                    1/RTMUE                               #  ESTABLISH MU FOR LUNAR TYPE ENTRIES
033392,000838: 26,2776           54656                                    CALLCON                               
033393,000839: 26,2777           00002 26244  290KFT             2DEC     88392      B-29                       
033394,000840: 26,3001           00052 05716  KTETA1             2DEC*    .421844723 E2         B-14*           #  1100 2PI/16384(163.84)
033395,000841: 26,3003           33335 05707  36KFT/S            2DEC     109.728    B-7                        #  (-7) M/CS = 36 KFT/S (-7)
033396,000842: 26,3005           36365 30244  20KFT/S            2DEC     121.92     B-7                        #  (-6) M/CS  = 2 20KFT/S  (-7)
033397,000843: 26,3007           77113 42770  KR1                2DEC     -.026666667                            #  = -2.4  4 / 360
033398,000844: 26,3011           77354 65030  -6.05DEG           2DEC     -.016805556                            #  = -6.05 / 360
033399,000845: 26,3013           21450 00001  KR2                2DEC     .54931641                             #  =(360/4) 100 (-14) =  9000 B-14
033400,000846: 26,3015           01750 00000  KR3                2DEC     1000       B-14                       #  = 100  (10.0)  (-14)   G,S

Page 762

033402,000848:                                                                                                  #                                          ASSUMES L/D = 0.3, BANK =0.
033403,000849: 26,3017           00305 04541  RTRIAL             2DEC     6460097.18 B-29                       #   RPAD +284643 FT =21 194 545 FT
033404,000850:                                                                                                  #                               RPAD DEFINED AS 20 909 901.57 FT =6 373 338 M
033405,000851: 26,3021           00003 27040  400KFT             2DEC     121920     B-29                       #  METERS
033406,000852: 
033407,000853:                                                                                                  #  300KFT   2DEC   91440 B-29      (-29)  M
033408,000854: 
033409,000855:                                                                                                  #  EMSALT   2DEC   86759.2 B-29    284643 FT (-29) M    (ORBITAL REENTRY)
033410,000856: 
033411,000857:                                                                                                  #  EMSALT   2DEC   90657 B-29      297431 FT (-29) M    (LUNAR REENTRY)
033412,000858: 
033413,000859: 26,3023           32525 12525  KR4                2DEC     .833333333                            
033414,000860: 26,3025  23,2461               300KFT             EQUALS   MINPERE                               
033415,000861: 26,3025           77777 76601  VEMSCON            2DEC     -.0389676  B-14                       #  = -HS D  /2  PI  (-14)    M SQ/ CS SQ
033416,000862:                                                                                                  #                               =- 16369   .05G  32.2  .3048  .3048/2 PI    (-14)
033417,000863: 

Page 763

033419,000865:                                                                                                  #  SUBROUTINE NAME:   FISHCALC              (USED BY S61.2)                DATE:           01.21.67
033420,000866:                                                                                                  #  MOD NO:  0                                                              LOG SECTION:    P61-P67
033421,000867:                                                                                                  #  MOD BY:  MORTH / BAIRNSFATHER
033422,000868:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER     DATE:  11 MAY 67      INCLUDE  GETERAD  CALL
033423,000869:                                                                                                  #  FUNCTIONAL DESCRIPTION:  GIVEN THE PRESENT POSITION, UNITR, CALCULATE A  NEW UNITR THAT IS ROTATED THROUGH
033424,000870:                                                                                                  #           TRANSFER ANGLE, THETA, ALONG TRAJECTORY. THEN CALCULATE  SIN(LAT)  AND USE TO OBTAIN FISCHER RADIUS.
033425,000871: 
033426,000872:                                                                                                  #           SINCE FISHCALC USES UNI (LEFT BY ENTRY) EARTH SCALING IS ASSUMED.(WILL IMPROVE FOR SUITABLE TENNANT)
033427,000873: 
033428,000874:                                                                                                  #  CALLING SEQUENCE:  CALL
033429,000875:                                                                                                  #                          FISHCALC
033430,000876:                                                                                                  #           ENTER WITH .5 SIN(THETA) IN MPAC.
033431,000877:                                                                                                  #           PUSHLOC IS AT PDL+0, AN ARBITRARY BASE VALUE IF LEQ 8D
033432,000878: 
033433,000879:                                                                                                  #  SUBROUTINES CALLED:  GETERAD
033434,000880:                                                                                                  #  NORMAL EXIT MODE:    RVQ
033435,000881:                                                                                                  #  EXIT MODES:           NONE
033436,000882:                                                                                                  #  OUTPUT:  ERADM  (-29) M   IN MPAC ON RETURNING
033437,000883:                                                                                                  #           NEW UNIT VECTOR NOT SAVED.
033438,000884:                                                                                                  #           SIN(LAT) NOT SAVED.
033439,000885:                                                                                                  #           PUSHLOC AT PDL+0
033440,000886:                                                                                                  #  ERASEABLE INITIALIZATION REQUIRED:
033441,000887:                                                                                                  #           SDELF/2    =SIN(THETA)  /2,   IN MPAC                          LEFT BY TFF/TRIG
033442,000888:                                                                                                  #           CDELF/2    =COS(THETA) /2, STORED IN PDL 14D                   LEFT BY TFF/TRIG
033443,000889:                                                                                                  #           RONE   (-29) M                                                 LEFT BY USER
033444,000890:                                                                                                  #           VONE   (-7)  M/CS                                              LEFT BY USER
033445,000891:                                                                                                  #           URONE  UR/2                                                    LEFT BY USER
033446,000892:                                                                                                  #           UNI        .5 UNIT( V*R)                                       LEFT BY ENTRY / P61
033447,000893:                                                                                                  #           UNITW      UNIT NORTH POLE                                     LEFT BY PAD LOAD
033448,000894:                                                                                                  #  DEBRIS:  QPRET,   PDL+0 ... PDL+5
033449,000895: 
033450,000896: 
033451,000897:                                                                                                  #                                          -      -          -
033452,000898: 26,3027           47315        FISHCALC           PDVL     VXV                                   #  URPR = UR CDELF + UHOR SDELF
033453,000899: 26,3030           02343                                    URONE                                 
033454,000900: 26,3031           03502                                    UNI                                   
033455,000901: 26,3032           76561                           VXSC     VSL1                                  
033456,000902:                                                                                                  #                                          SIN(THETA) /2 FROM PDL+0
033457,000903: 26,3033           74315                           PDVL     VXSC                                  #  TO PDL+0,  +5
033458,000904: 26,3034           02343                                    URONE                                 
033459,000905: 26,3035           00017                                    CDELF/2                               #  COS(THETA) /2
033460,000906: 26,3036           45455                           VAD      STADR                                 
033461,000907: 26,3037           74235                           STORE    URH                                   #  FOR USE IN RTGO FROM EMS DISPLAY
033462,000908: 26,3040           72441                           DOT      SL1                                   
033463,000909: 26,3041           01714                                    UNITW                                 #  FULL UNIT VECTOR    UNIT NORTH
033464,000910: 26,3042           02156                           STORE    ALPHAV     +4                         #   = .5 SIN(LAT)
033465,000911: 26,3043           77650        DUMPFISH           GOTO                                           
033466,000912: 26,3044           26437                                    GETERAD                               #  SAVES FISCHER RAD (-29) M IN ERADM AND
033467,000913:                                                                                                  #                                          IN MPAC. RETURNS TO CALLER VIQ QPRET.
033468,000914: 

Page 764

033470,000916:                                                                                                  #  SUBROUTINE NAME:   VGAMCALC   (USED BY S61.2)                         DATE:           01.21.67
033471,000917:                                                                                                  #  MOD NO:    0                                                          LOG SECTION:    P61-P67
033472,000918:                                                                                                  #  MOD BY:  MORTH / BAIRNSFATHER
033473,000919:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER         DATE: 11 APR 67
033474,000920:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER         DATE: 21 NOV 67         VARIABLE MU ADDED.
033475,000921:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER         DATE: 21 MAR 68         ACCEPT DIFFERENT EARTH/MOON SCALE
033476,000922:                                                                                                  #  FUNCTIONAL DESCRIPTION:       EARTH CENTERED VIS VIVA CALCULATION OF TERMINAL VELOCITY AND GAMMA (REL TO
033477,000923:                                                                                                  #          HORIZONTAL)  GIVEN  THE SCALAR QUANTITIES:   PRESENT RADIUS AND VELOCITY AND THE TERMINAL RADIUS.
033478,000924:                                                                                                  #          THE USER MUST APPEND PROPER SIGN TO GAMMA, SINCE IT IS CALCULATED AS A POSITIVE NUMBER.
033479,000925:                                                                                                  #          THE EQUATIONS ARE
033480,000926: 
033481,000927:                                                                                                  #                 VGAM = SQRT(VN VN/MU + 2(RN-RTERM)/(RN RTERM)  )  RTMU
033482,000928: 
033483,000929:                                                                                                  #                 COSGAM = H /RTERM VGAM  = SQRT(LCP)/ (RTERM VGAM/RTMU)
033484,000930: 
033485,000931: 
033486,000932:                                                                                                  #          VGAMCALC ASSUMES THAT THE TERMINAL RADIUS IS LESS THAN THE PRESENT RADIUS. BOTH CALCTFF AND CALCTPER
033487,000933:                                                                                                  #          MAKE THIS ASSUMPTION.
033488,000934: 
033489,000935:                                                                                                  #  CALLING SEQUENCE:  CALL                         STCALL RTERM
033490,000936:                                                                                                  #                           VGAMCALC                      PREVGAM
033491,000937:                                                                                                  #          PUSHLOC AT PDL+0, ARBITRARY  IF LEQ 12D
033492,000938:                                                                                                  #          C(MPAC) UNSPECIFIED                    C(MPAC)=NEW RTERM
033493,000939: 
033494,000940:                                                                                                  #  SUBROUTINES CALLED:  NONE
033495,000941:                                                                                                  #  NORMAL EXIT MODE:    RVQ
033496,000942:                                                                                                  #  ALARMS:    NONE
033497,000943:                                                                                                  #  OUTPUT:    GAMMA / 360 IN MPAC, POSITIVE NUMBER
033498,000944:                                                                                                  #             VGAM E:(-7)  M:(-5)    M/CS IN PDL+0
033499,000945:                                                                                                  #             PUSHLOC AT PDL+2
033500,000946:                                                                                                  #  ERASABLE INITIALIZATION REQD:
033501,000947:                                                                                                  #           TFF/RTMU E:(17) M:(14)   1/SQRT(MU)                            LEFT BY TFFCONIC.
033502,000948:                                                                                                  #           RMAG1  E:(-29) M:(-27)   M   PRESENT RADIUS LENGTH             LEFT BY TFFCONIC
033503,000949:                                                                                                  #           NRMAG  E: (-29+NR)       M  NORM LENGTH OF PRESENT POSITION    LEFT BY TFFCONIC
033504,000950:                                                                                                  #                  M: (-27+NR)
033505,000951:                                                                                                  #           RTERM  E:(-29) M:(-27)   M  TERMINAL RADIUS LENGTH             LEFT BY CALCTFF
033506,000952:                                                                                                  #           NRTERM E: (-29+NR)       M  NORM LENGTH OF TERMINAL RADIUS     LEFT BY CALCTFF
033507,000953:                                                                                                  #                  M: (-27+NR)
033508,000954:                                                                                                  #           TFFVSQ E:(20)  M:(18)  1/M   -(V SQ/MU): PRESENT VELOCITY,NORM LEFT BY TFFCONIC
033509,000955:                                                                                                  #           TFFNP  E: (-38+2NR)      M  LCP, SEMI-LATUS RECTUM, WEIGHT NR  LEFT BY TFFCONIC
033510,000956:                                                                                                  #                  M: (-36+2NR)
033511,000957:                                                                                                  #  DEBRIS:  QPRET, PDL+0 ... PDL+3
033512,000958:                                                                                                  #           RTERM, NRTERM IF PREVGAM ENTERED.
033513,000959: 

Page 765

033515,000961: 26,3045           77657        PREVGAM            SL*                                            #  ENTER WITH NEW  RTERM IN MPAC
033516,000962:                                                                                                  #                                          E: (-29)  M: (-27)
033517,000963: 26,3046           20201                                    0,1                                   #  X1 = -NR
033518,000964: 26,3047           00021                           STORE    NRTERM                                #  RTERM  M        E:(-29+NR)   M: (-27+NR)
033519,000965: 
033520,000966: 26,3050           41345        VGAMCALC           DLOAD    DMP                                   
033521,000967: 26,3051           00041                                    NRMAG                                 #  RMAG  M          E:(-29+NR)  M:(-27+NR)
033522,000968: 26,3052           00021                                    NRTERM                                #  RTERM  M         E:(-29+NR)  M:(-27+NR)
033523,000969: 26,3053           45325                           PDDL     DSU                                   #  RMAG RTERM M     E:(-58+2NR) M:(-54+2NR)
033524,000970: 26,3054           00041                                    NRMAG                                 #  RMAG  M          E:(-29+NR)  M:(-27+NR)
033525,000971: 26,3055           00021                                    NRTERM                                #  RTERM  M         E:(-29+NR)  M:(-27+NR)
033526,000972: 26,3056           56257                           SL*      DDV                                   #  2(RN-RTERM)      E:(-30+NR)  M:(-28+NR)
033527,000973: 26,3057           20171                                    0          -8D,1                      #  (-8+NR)
033528,000974:                                                                                                  #                                          PUSH UP PRODUCT.
033529,000975: 26,3060           77625                           DSU                                            
033530,000976: 26,3061           00025                                    TFFVSQ                                #  -(V SQ/MU)         E: (20)   M: (18)
033531,000977: 26,3062           41566                           SQRT     PUSH                                  #  SAVE VGAM/RT(MU) FOR NOW. E:(10) M: (9)
033532,000978: 26,3063           65271                           DDV      PDDL                                  #  XCH PDL+0, LEAVING VGAM FOR OUTPUT.
033533,000979:                                                                                                  #                                          VGAM TO PDL M/CS   E: (-7)   M: (-2)
033534,000980: 26,3064           00037                                    TFF/RTMU                              #  E: (17)  M: (14)
033535,000981: 26,3065           65205                           DMP      PDDL                                  #  RTERM VGAM/RTMU  E:(-19+NR)  M:(-18+NR)
033536,000982: 26,3066           00021                                    NRTERM                                #  RTERM M          E:(-29+NR)  M:(-27+NR)
033537,000983: 26,3067           00035                                    TFFNP                                 #  LC P =H.H/MU M   E:(-38+2NR) M:(-36+2NR)
033538,000984: 26,3070           56366                           SQRT     DDV                                   #                   E:(-19+NR)  M:(-18+NR)
033539,000985:                                                                                                  #                                          PUSH UP DEN      E:(-19+NR)  M:(-18+NR)
033540,000986:                                                                                                  #                                          USE DDV OVFL AS LIMITER (|COS| <1.0)
033541,000987: 26,3071           65542                           SR1      ACOS                                  
033542,000988: 26,3072           77616        DUMPVGAM           RVQ                                            
033543,000989: 
033544,000990:                                                                                                  #                                          CALLER MUST SUPPLY OWN SIGN ...
033545,000991: 
033546,000992:                                                                                                  #                                                                   22W     27MS
033547,000993: 

Page 766

033549,000995:                                                                                                  #  SUBROUTINE NAME:     TFF/TRIG            (USED BY S61.2)                DATE     01.17.67
033550,000996:                                                                                                  #  MOD NO:  0                                                              LOG SECTION:    P61-P67
033551,000997:                                                                                                  #  MOD BY:  RR BAIRNSFATHER
033552,000998:                                                                                                  #  MOD NO:  1           MOD BY:  RR BAIRNSFATHER     DATE:  14 APR 67
033553,000999:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER     DATE:  21 MAR 68      ACCEPT DIFFERENT EARTH/MOON SCALE
033554,001000:                                                                                                  #  FUNCTIONAL DESCRIPTION:      USED BY ENTRY DISPLAY TO CALCULATE SIN(THETA), COS(THETA) FROM DATA LEFT IN
033555,001001:                                                                                                  #           PDL BY TFF SUBROUTINES. THE EQNS ARE
033556,001002:                                                                                                  #                  COS(THETA) = 1-2 ABS(ARG) /(RN RTERM (1+X)  )
033557,001003:                                                                                                  #                                                  2
033558,001004:                                                                                                  #                  SIN(THETA) = SGN(ARG) SQRT(1-COS (THETA) )
033559,001005:                                                                                                  #           WHERE  THETA = TRANSFER ANGLE
033560,001006:                                                                                                  #           AND    ARG = P Z ABS(Z)                                        IF ALFA ZZ   LEQ 1
033561,001007:                                                                                                  #                  ARG = (P / ALFA)  SGN(Q1 + R 1/Z)                       IF ALFA Z Z   G  1
033562,001008:                                                                                                  #           AND  ARG  HAS BEEN AFFIXED WITH THE SIGN OF SIN(THETA).
033563,001009:                                                                                                  #  CALLING SEQUENCE:  CALL
033564,001010:                                                                                                  #                            TFF/TRIG
033565,001011:                                                                                                  #           PUSHLOC AT PDL+0, ARBITRARY IF NOT EQ 14D
033566,001012:                                                                                                  #           C(MPAC) UNSPECIFIED
033567,001013: 
033568,001014:                                                                                                  #  SUBROUTINES CALLED:  NONE
033569,001015:                                                                                                  #  NORMAL EXIT MODES:   RVQ
033570,001016:                                                                                                  #  ALARMS:  NONE
033571,001017:                                                                                                  #  OUTPUT:  C(MPAC) = .5 SIN(THETA)
033572,001018:                                                                                                  #           CDELF/2 = .5 COS(THETA)          (IN PDL 14D)
033573,001019:                                                                                                  #           PUSHLOC AT PDL+0
033574,001020:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED:
033575,001021:                                                                                                  #           TFFX                   X                                       LEFT BY CALCTFF OR CALCTPER
033576,001022:                                                                                                  #           TFFTEM E: (-59+2NR)    ARG                                     LEFT BY CALCTFF OR CALCTPER
033577,001023:                                                                                                  #                  M: (-55+2NR)    WHERE ARG = LCP ZZ SGN(DELF) OR ARG = LCP/ALFA  SGN(DELF)
033578,001024:                                                                                                  #           NRTERM E: (-29+NR)       M  NORM LENGTH OF TERMINAL RADIUS     LEFT BY CALCTFF OR CALCTPER
033579,001025:                                                                                                  #                  M: (-27+NR)
033580,001026:                                                                                                  #           NRMAG  E: (-29+NR)       M  NORM LENGTH OF PRESENT POSITION    LEFT BY TFFCONIC
033581,001027:                                                                                                  #                  M: (-27+NR)
033582,001028:                                                                                                  #  DEBRIS:  QPRET, CDELF/2
033583,001029: 
033584,001030: 27,2573                                           BANK     27                                    
033585,001031: 27,2000                                           SETLOC   P60S5                                 
033586,001032: 27,2000                                           BANK                                           
033587,001033: 27,2573           70545        TFF/TRIG           DLOAD    SR1                                   
033588,001034: 27,2574           00043                                    TFFX                                  
033589,001035: 27,2575           41215                           DAD      DMP                                   
033590,001036: 27,2576           15330                                    HIDPHALF                              
033591,001037: 27,2577           00041                                    NRMAG                                 #  RMAG  M          E:(-29+NR)  M:(-27+NR)
033592,001038: 27,2600           55205                           DMP      BDDV                                  
033593,001039: 27,2601           00021                                    NRTERM                                #  RTERM  M         E:(-29+NR)  M:(-27+NR)
033594,001040: 27,2602           00045                                    TFFTEM                                #  P ZSQ OR P/ALFA  E:(-59+2NR) M:(-55+2NR)
033595,001041: 27,2603           44246                           ABS      BDSU                                  #  THE SIGN IS FOR SDELF.
033596,001042: 27,2604           15330                                    HIDPHALF                              
033597,001043: 27,2605           00017                           STORE    CDELF/2                               #  .5 COS(THETA)
033598,001044: 27,2606           57516                           DSQ      DCOMP                                 #  KEEP HONEST FOR SQRT.

Page 767

033600,001046: 27,2607           75415                           DAD      SQRT                                  
033601,001047: 27,2610           15322                                    HIDP1/4                               
033602,001048: 27,2611           43565        DUMPTRIG           SIGN     RVQ                                   
033603,001049: 27,2612           00045                                    TFFTEM                                #  AFFIX SIGN(DELE/2)
033604,001050:                                                                                                  #                                          RETURN WITH .5 SIN(THETA) IN MPAC
033605,001051: 
033606,001052:                                                                                                  #                                                             16W            15 MS
033607,001053: 
033608,001054: 27,2613           77620        DISPTARG           STQ                                            #   C(MPAC) = TRGO  ESTIMATE
033609,001055: 27,2614           03373                                    60GENRET                              
033610,001056: 27,2615           45205                           DMP      DSU                                   
033611,001057: 27,2616           15002                                    KTETA1                                
033612,001058: 27,2617           03733                                    TTE1                                  
033613,001059: 27,2620           37606                           STCALL   DTEAROT                               
033614,001060: 27,2621           46225                                    EARROT2                               
033615,001061: 27,2622           77624                           CALL                                           
033616,001062: 27,2623           56626                                    VRCALC                                
033617,001063: 27,2624           77650                           GOTO                                           
033618,001064: 27,2625           03373                                    60GENRET                              
033619,001065: 27,2626           50375        VRCALC             VLOAD    DOT                                   
033620,001066: 27,2627           03542                                    URH                                   
033621,001067: 27,2630           03474                                    RT                                    
033622,001068: 27,2631           65512                           SL2      ACOS                                  
033623,001069: 27,2632           77616                           RVQ                                            
033624,001070:                                                                                                  #  END OF PROGRAM S61.2
033625,001071: 

Page 768

033627,001073: 
033628,001074:                                                                                                  #  PROGRAM DESCRIPTION S62.3       DATE 10JAN67
033629,001075:                                                                                                  #  MOD NO 1        LOG SECTION P60-P67
033630,001076:                                                                                                  #  MOD BY ZELDIN
033631,001077:                                                                                                  #  MOD NO:  2           MOD BY:  RR BAIRNSFATHER      DATE: 15 MAY 67      CHANGED TO REF COORDS.
033632,001078:                                                                                                  #  MOD NO:  3           MOD BY:  RR BAIRNSFATHER      DATE:  17 JAN 68     ALFAPAD CHANGES MADE.
033633,001079:                                                                                                  #  FUNCTIONAL DESCRIPTION
033634,001080:                                                                                                  #           COMPUTE  DESIRED GIMBOL ANGLES FOR ENTRY ATTITUDE
033635,001081:                                                                                                  #           THE FOLLOWING TRAJECTORY TRIAD IS AVAILABLE IN MEMORY AND IS COMPUTED EACH 2 SECONDS BY  CM/POSE  IN
033636,001082:                                                                                                  #           REFERENCE COORDINATES (V = VELOCITY RELATIVE TO EARTH) :
033637,001083: 
033638,001084:                                                                                                  #                  UXA = -UNIT(V)
033639,001085:                                                                                                  #                  UYA =  UNIT(V*R)
033640,001086:                                                                                                  #                  UZA =  UXA*UYA
033641,001087: 
033642,001088:                                                                                                  #           GENERATE A DESIRED BODY TRIAD FOR TRIMMED FLIGHT WITH RESPECT TO THE RELATIVE VELOCITY VECTOR, USING
033643,001089:                                                                                                  #           ROLL COMMAND AND TRIM ANGLE OF ATTACK:
033644,001090: 
033645,001091:                                                                                                  #                UXD = UNIT(UYD*UXA) SIN(ALFATRIM) + UXA COS(ALFATRIM)
033646,001092:                                                                                                  #                UYD = UYA COS(ROLLC) + UZA SIN(ROLLC)
033647,001093:                                                                                                  #                UZD = UXD * UYD
033648,001094: 
033649,001095:                                                                                                  #           USE THE DESIRED SET (IN REFERENCE COORDS) AND  REFSMMAT  TO CALL   CALCGA   AND OBTAIN GIMBAL ANGLES
033650,001096:                                                                                                  #           IN 2S,C IN MPAC, +2 AND THETAD, +2.
033651,001097: 
033652,001098:                                                                                                  #  CALLING SEQUENCE
033653,001099:                                                                                                  #         L   CALL
033654,001100:                                                                                                  #         L+1      S62.3
033655,001101:                                                                                                  #  NORMAL EXIT MODE
033656,001102:                                                                                                  #           RETURN VIA QPRET DIRECTLY FROM CALCGA.
033657,001103:                                                                                                  #  SUBROUTINES CALLED
033658,001104:                                                                                                  #           CALCGA
033659,001105:                                                                                                  #  ALARM OR ABORT MODES
033660,001106:                                                                                                  #           NONE
033661,001107:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
033662,001108:                                                                                                  #           ROLLC  ROLL COMMAND          DP 1:S COMP AT 1REV
033663,001109:                                                                                                  #           ALFAPAD   SP 1S,C     /180                LEFT BY PAD LOAD    ALFATRIM IS NEGATIVE.
033664,001110:                                                                                                  #           UXA/2  REF COORDS                         LEFT BY CM/POSE
033665,001111:                                                                                                  #           UYA/2  REF COORDS                         LEFT BY CM/POSE
033666,001112:                                                                                                  #           UZA/2  REF COORDS                         LEFT BY CM/POSE
033667,001113:                                                                                                  #  OUTPUT
033668,001114:                                                                                                  #           CPHI   GIMBAL ANGLES (O,I,M) 2:S COMP TP (O,I,M)/180
033669,001115:                                                                                                  #  DEBRIS
033670,001116:                                                                                                  #        QTEMP, QPRET,PUSHLIST
033671,001117: 
033672,001118: 10,2302                                           BANK     10                                    
033673,001119: 10,2000                                           SETLOC   P60S4                                 
033674,001120: 10,2000                                           BANK                                           
033675,001121: 

Page 769

033677,001123: 10,2302                                           COUNT*   $$/S62.3                              
033678,001124: 
033679,001125: 10,2302           67201        S62.3              SETPD    SLOAD                                 
033680,001126: 10,2303           00001                                    0                                     
033681,001127: 10,2304           03012                                    ALFAPAD                               #  ALFATRIM /180, ALFA IS NEG.
033682,001128: 10,2305           41542                           SR1      PUSH                                  
033683,001129: 10,2306           65346                           COS      PDDL                                  #  XCH PDL, COS TO PDL0
033684,001130: 10,2307           65356                           SIN      PDDL                                  #  SIN TO PDL2
033685,001131: 10,2310           03316                                    ROLLC                                 
033686,001132: 10,2311           74346                           COS      VXSC                                  
033687,001133: 10,2312           03550                                    UYA/2                                 #                           REF COORDS
033688,001134: 10,2313           73525                           PDDL     SIN                                   #  PUSH VECTOR INTO PDL4,.9
033689,001135: 10,2314           03316                                    ROLLC                                 
033690,001136: 10,2315           53361                           VXSC     VAD                                   
033691,001137: 10,2316           03556                                    UZA/2                                 #                           REF COORDS
033692,001138:                                                                                                  #                                          VECTOR FROM PDL4, 9
033693,001139: 10,2317           77772                           VSL1                                           
033694,001140: 10,2320           02722                           STORE    YNB                                   #  = UYD                    REF COORDS
033695,001141: 
033696,001142: 10,2321           76435                           VXV      VSL1                                  
033697,001143: 10,2322           03542                                    UXA/2                                 #                           REF COORDS
033698,001144: 10,2323           65361                           VXSC     PDDL                                  
033699,001145:                                                                                                  #                                          SIN TRIM FROM PDL2
033700,001146:                                                                                                  #                                          XCH PDL0 FOR COS TRIM
033701,001147: 10,2324           53361                           VXSC     VAD                                   
033702,001148: 10,2325           03542                                    UXA/2                                 #                           REF COORDS
033703,001149:                                                                                                  #                                          FROM PDL0
033704,001150: 10,2326           77626                           STADR                                          
033705,001151: 10,2327           75063                           STORE    XNB                                   #  X SC AXIS (.5 UNIT)        REF COORDS
033706,001152: 
033707,001153: 10,2330           76435                           VXV      VSL1                                  
033708,001154: 10,2331           02722                                    YNB                                   
033709,001155: 10,2332           26730                           STOVL    ZNB                                   #  Z SC IN REF COOR. SCALED AT 2
033710,001156: 10,2333           01736                                    REFSMMAT                              
033711,001157: 10,2334           26672                           STOVL    XSM                                   
033712,001158: 10,2335           01744                                    REFSMMAT   +6                         
033713,001159: 10,2336           26700                           STOVL    YSM                                   
033714,001160: 10,2337           01752                                    REFSMMAT   +12D                       
033715,001161: 10,2340           02706                           STORE    ZSM                                   
033716,001162: 
033717,001163: 10,2341           52014                           CLEAR    GOTO                                  
033718,001164: 10,2342           00260                                    CPHIFLAG                              #  CAUSE CALCGA TO STORE ANS IN TP CPHI
033719,001165: 10,2343           47244                                    CALCGA                                
033720,001166:                                                                                                  #                                          CALCGA WILL RETURN TO ORIGINAL CALLER
033721,001167:                                                                                                  #                                          VIA QPRET WITH 2,S COMP. ANGLES IN CPHI

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