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.

022309,000002:                                                                                                  ## Copyright:   Public domain.
022310,000003:                                                                                                  ## Filename:    STABLE_ORBIT_-_P38-P39.agc
022311,000004:                                                                                                  ## Purpose:     Part of the source code for Colossus build 237.  
022312,000005:                                                                                                  ##              This is for the Command Module's (CM) Apollo Guidance
022313,000006:                                                                                                  ##              Computer (AGC), for Apollo 8.
022314,000007:                                                                                                  ## Assembler:   yaYUL
022315,000008:                                                                                                  ## Contact:     Onno Hommes <ohommes@alumni.cmu.edu>
022316,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
022317,000010:                                                                                                  ## Page Scans:  www.ibiblio.org/apollo/ScansForConversion/Colossus237/
022318,000011:                                                                                                  ## Mod history: 2010-06-03 OH   Adapted from corresponding Colossus 249 file.
022319,000012:                                                                                                  ##              2010-12-04 JL   Remove Colossus 249 header comments. Change to double-has page numbers.
022320,000013:                                                                                                  ##              2011-02-06 JL   Minor fixes.
022321,000014:                                                                                                  ##              2016-12-31 RSB  Proofed comment text using octopus/ProoferComments,
022322,000015:                                                                                                  ##                              and corrected errors found.
022323,000016: 

Page 514

022325,000018:                                                                                                  #  STABLE ORBIT RENDEZVOUS PROGRAMS (P38 AND P78)
022326,000019: 
022327,000020:                                                                                                  #  MOD NO -1          LOG SECTION - STABLE ORBIT - P38-P39
022328,000021:                                                                                                  #  MOD BY RUDNICKI.S  DATE 25JAN68
022329,000022: 
022330,000023:                                                                                                  #  FUNCTIONAL DESCRIPTION
022331,000024: 
022332,000025:                                                                                                  #        P38 AND P78 CALCULATE THE REQUIRED DELTA V AND OTHER INITIAL
022333,000026:                                                                                                  #        CONDITIONS REQUIRED BY THE AGC TO (1) PUT THE ACTIVE VEHICLE
022334,000027:                                                                                                  #        ON A TRANSFER TRAJECTORY THAT INTERCEPTS THE PASSIVE VEHICLE
022335,000028:                                                                                                  #        ORBIT A GIVEN DISTANCE, DELTA R, EITHER AHEAD OF OR BEHIND THE
022336,000029:                                                                                                  #        PASSIVE VEHICLE AND (2) ACTUALLY PLACE THE ACTIVE VEHICLE IN THE
022337,000030:                                                                                                  #        PASSIVE VEHICLE ORBIT WITH A DELTA R SEPARATION BETWEEN THE TWO
022338,000031:                                                                                                  #        VEHICLES
022339,000032: 
022340,000033:                                                                                                  #  CALLING SEQUENCE
022341,000034: 
022342,000035:                                                                                                  #        ASTRONAUT REQUEST THRU DSKY
022343,000036: 
022344,000037:                                                                                                  #        V37E38E   IF THIS VEHICLE IS ACTIVE VEHICLE
022345,000038:                                                                                                  #        V37E78E   IF OTHER VEHICLE IS ACTIVE VEHICLE
022346,000039: 
022347,000040:                                                                                                  #  INPUT
022348,000041: 
022349,000042:                                                                                                  #        (1) SOI MANEUVER
022350,000043: 
022351,000044:                                                                                                  #                (A) TIG      TIME OF SOI MANEUVER
022352,000045:                                                                                                  #                (B) CENTANG  ORBITAL CENTRAL ANGLE OF THE PASSIVE VEHICLE
022353,000046:                                                                                                  #                             DURING TRANSFER FROM TIG TO TIME OF INTERCEPT
022354,000047:                                                                                                  #                (C) DELTAR   THE DESIRED SEPARATION OF THE TWO VEHICLES
022355,000048:                                                                                                  #                             SPECIFIED AS A DISTANCE ALONG THE PASSIVE VEHICLE
022356,000049:                                                                                                  #                             ORBIT
022357,000050:                                                                                                  #                (D) OPTION   EQUALS 1 FOR SOI
022358,000051: 
022359,000052:                                                                                                  #        (2) SOR MANEUVER
022360,000053: 
022361,000054:                                                                                                  #                (A) TIG      TIME OF SOR MANEUVER
022362,000055:                                                                                                  #                (B) CENTANG  AN OPTIONAL RESPECIFICATION OF 1 (B) ABOVE
022363,000056:                                                                                                  #                (C) OPTION   EQUALS 2 FOR SOR
022364,000057:                                                                                                  #                (D) DELTTIME THE TIME REQUIRED TO TRAVERSE DELTA R WHEN
022365,000058:                                                                                                  #                             TRAVELING AT A VELOCITY EQUAL TO THE HORIZONTAL
022366,000059:                                                                                                  #                             VELOCITY OF THE PASSIVE VEHICLE - SAVED FROM
022367,000060:                                                                                                  #                             SOI PHASE
022368,000061:                                                                                                  #                (E) TINT     TIME OF INTERCEPT (SOI) - SAVED FROM SOI PHASE
022369,000062: 
022370,000063:                                                                                                  #  OUTPUT
022371,000064: 
022372,000065:                                                                                                  #        (1) TRKMKCNT NUMBER OF MARKS
022373,000066:                                                                                                  #        (2) TTOGO    TIME TO GO
022374,000067:                                                                                                  #        (3) +MGA     MIDDLE GIMBAL ANGLE

Page 515

022376,000069:                                                                                                  #        (4) DSPTEM1  TIME OF INTERCEPT OF PASSIVE VEHICLE ORBIT
022377,000070:                                                                                                  #                     (FOR SOI ONLY)
022378,000071:                                                                                                  #        (5) POSTTPI  PERIGEE ALTITUDE OF ACTIVE VEHICLE ORBIT AFTER
022379,000072:                                                                                                  #                     THE SOI (SOR) MANEUVER
022380,000073:                                                                                                  #        (6) DELVTPI  MAGNITUDE OF DELTA V AT SOI (SOR) TIME
022381,000074:                                                                                                  #        (7) DELVTPF  MAGNITUDE OF DELTA V AT INTERCEPT TIME
022382,000075:                                                                                                  #        (8) DELVLVC  DELTA VELOCITY AT SOI (AND SOR) - LOCAL VERTICAL
022383,000076:                                                                                                  #                     COORDINATES
022384,000077: 
022385,000078:                                                                                                  #  SUBROUTINES USED
022386,000079: 
022387,000080:                                                                                                  #        AVFLAGA
022388,000081:                                                                                                  #        AVFLAGP
022389,000082:                                                                                                  #        VNDSPLY
022390,000083:                                                                                                  #        BANKCALL
022391,000084:                                                                                                  #        GOFLASHR
022392,000085:                                                                                                  #        GOTOPOOH
022393,000086:                                                                                                  #        BLANKET
022394,000087:                                                                                                  #        ENDOFJOB
022395,000088:                                                                                                  #        PREC/TT
022396,000089:                                                                                                  #        SELECTMU
022397,000090:                                                                                                  #        INTRPVP
022398,000091:                                                                                                  #        MAINRTNE
022399,000092: 
022400,000093: 04,3103                                           BANK     04                                    
022401,000094: 04,2000                                           SETLOC   STBLEORB                              
022402,000095: 04,2000                                           BANK                                           
022403,000096: 
022404,000097: 04,3103  E4,1770                                  EBANK=   SUBEXIT                               
022405,000098: 04,3103                                           COUNT*   $$/P3879                              
022406,000099: 
022407,000100: 04,3103           04555        P38                TC       BANKCALL                              
022408,000101: 04,3104           73726                           CADR     AVFLAGA                               #  THIS VEHICLE ACTIVE
022409,000102: 04,3105           03110                           TC       +3                                    
022410,000103: 04,3106           04555        P78                TC       BANKCALL                              
022411,000104: 04,3107           73741                           CADR     AVFLAGP                               #  OTHER VEHICLE ACTIVE
022412,000105: 04,3110           04555                           TC       BANKCALL                              
022413,000106: 04,3111           73746                           CADR     P20FLGON                              #  SET UPDATFLG, TRACKFLG
022414,000107: 04,3112           33435                           CAF      V06N33SR                              #  DISPLAY TIG
022415,000108: 04,3113           03424                           TC       VNDSPLY                               
022416,000109: 04,3114           33436                           CAF      V06N55SR                              #  DISPLAY CENTANG
022417,000110: 04,3115           04555                           TCR      BANKCALL                              
022418,000111: 04,3116           20763                           CADR     GOFLASHR                              
022419,000112: 04,3117           14106                           TCF      GOTOPOOH                              #  TERMINATE
022420,000113: 04,3120           13125                           TCF      +5                                    #  PROCEED
022421,000114: 04,3121           13114                           TCF      -5                                    #  RECYCLE
022422,000115: 04,3122           36214                           CAF      THREE                                 #  IMMEDIATE RETURN - BLANK R1, R2
022423,000116: 04,3123           05415                           TCR      BLANKET                               
022424,000117: 04,3124           15112                           TCF      ENDOFJOB                              
022425,000118: 04,3125           34715                           CAF      FIVE                                  

Page 516

022427,000120: 04,3126           55131                           TS       OPTION1                               
022428,000121: 04,3127           34712                           CAF      ONE                                   
022429,000122: 04,3130           55132                           TS       OPTION2                               #  OPTION CODE IS SET TO 1
022430,000123: 04,3131           33437                           CAF      V04N06SR                              #  DISPLAY OPTION CODE - 1 = SOI, 2 = SOR
022431,000124: 04,3132           04555                           TCR      BANKCALL                              
022432,000125: 04,3133           20763                           CADR     GOFLASHR                              
022433,000126: 04,3134           14106                           TCF      GOTOPOOH                              #  TERMINATE
022434,000127: 04,3135           13142                           TCF      +5                                    #  PROCEED
022435,000128: 04,3136           13131                           TCF      -5                                    #  RECYCLE
022436,000129: 04,3137           34710                           CAF      BIT3                                  #  IMMEDIATE RETURN - BLANK R3
022437,000130: 04,3140           05415                           TCR      BLANKET                               
022438,000131: 04,3141           15112                           TCF      ENDOFJOB                              
022439,000132: 04,3142           06006                           TC       INTPRET                               
022440,000133: 04,3143           70535                           SLOAD    SR1                                   
022441,000134: 04,3144           01133                                    OPTION2                               
022442,000135: 04,3145           71230                           BHIZ     DLOAD                                 
022443,000136: 04,3146           11154                                    OPTN1                                 
022444,000137: 04,3147           03656                                    TINT                                  
022445,000138: 04,3150           02611                           STORE    TINTSOI                               #  STORE FOR SOR PHASE
022446,000139: 04,3151           77614                           CLRGO                                          
022447,000140: 04,3152           01230                                    OPTNSW                                #  OPTNSW; ON = SOI, OFF = SOR
022448,000141: 04,3153           11200                                    JUNCTN1                               
022449,000142: 04,3154           45014        OPTN1              SET      CALL                                  #  SOI
022450,000143: 04,3155           01070                                    OPTNSW                                
022451,000144: 04,3156           11357                                    PREC/TT                               
022452,000145: 04,3157           77615                           DAD                                            
022453,000146: 04,3160           03413                                    TIG                                   
022454,000147: 04,3161           03656                           STORE    TINT                                  #  TI = TIG + TF
022455,000148: 04,3162           01046                           STORE    DSPTEM1                               #  FOR DISPLAY
022456,000149: 04,3163           77776                           EXIT                                           
022457,000150: 04,3164           33440                           CAF      V06N57SR                              #  DISPLAY DELTA R
022458,000151: 04,3165           04555                           TCR      BANKCALL                              
022459,000152: 04,3166           20763                           CADR     GOFLASHR                              
022460,000153: 04,3167           14106                           TCF      GOTOPOOH                              #  TERMINATE
022461,000154: 04,3170           13175                           TCF      +5                                    #  PROCEED
022462,000155: 04,3171           13164                           TCF      -5                                    #  RECYCLE
022463,000156: 04,3172           36211                           CAF      SIX                                   #  IMMEDIATE RETURN - BLANK R2, R3
022464,000157: 04,3173           05415                           TCR      BLANKET                               
022465,000158: 04,3174           15112                           TCF      ENDOFJOB                              
022466,000159: 04,3175           33441                           CAF      V06N34SR                              #  DISPLAY TIME OF INTERCEPT
022467,000160: 04,3176           03424                           TC       VNDSPLY                               
022468,000161: 04,3177           06006                           TC       INTPRET                               
022469,000162: 04,3200           45014        JUNCTN1            CLEAR    CALL                                  
022470,000163: 04,3201           04266                                    P39/79SW                              
022471,000164: 04,3202           10716                                    SELECTMU                              #  SELECT MU, CLEAR FINALFLG, GO TO VN1645
022472,000165: 04,3203           77624        RECYCLE            CALL                                           
022473,000166: 04,3204           11357                                    PREC/TT                               
022474,000167: 04,3205           71214                           BOFF     DLOAD                                 
022475,000168: 04,3206           01350                                    OPTNSW                                
022476,000169: 04,3207           11227                                    OPTN2                                 

Page 517

022478,000171: 04,3210           03656                                    TINT                                  
022479,000172: 04,3211           34041                           STCALL   TDEC1                                 #  PRECISION UPDATE PASSIVE VEHICLE TO
022480,000173: 04,3212           11410                                    INTRPVP                               #     INTERCEPT TIME
022481,000174: 04,3213           53575                           VLOAD    UNIT                                  
022482,000175: 04,3214           00001                                    RATT                                  #  RP/(RP)
022483,000176: 04,3215           47315                           PDVL     VXV                                   
022484,000177: 04,3216           00007                                    VATT                                  
022485,000178: 04,3217           60246                           ABVAL    NORM                                  #  (VP X RP/(RP))
022486,000179: 04,3220           00047                                    X1                                    
022487,000180: 04,3221           56325                           PDDL     DDV                                   
022488,000181: 04,3222           02611                                    DELTAR                                
022489,000182: 04,3223           77657                           SL*                                            #  DELTA R / (VP X RP/RP)
022490,000183: 04,3224           20172                                    0          -7,1                       
022491,000184: 04,3225           36613                           STCALL   DELTTIME                              #  DELTA T = (RP) DELTA R / (VP X RP)
022492,000185: 04,3226           11233                                    JUNCTN2                               
022493,000186: 04,3227           43345        OPTN2              DLOAD    DAD                                   
022494,000187: 04,3230           02611                                    TINTSOI                               
022495,000188: 04,3231           00037                                    T                                     
022496,000189: 04,3232           03656                           STORE    TINT                                  #  TI = TI + TF
022497,000190: 04,3233           45345        JUNCTN2            DLOAD    DSU                                   
022498,000191: 04,3234           03656                                    TINT                                  
022499,000192: 04,3235           02613                                    DELTTIME                              
022500,000193: 04,3236           02615                           STORE    TARGTIME                              #  TT = TI - DELTA T
022501,000194:                                                                                                  #  .... MAINRTNE ....
022502,000195:                                                                                                  #  SUBROUTINES USED
022503,000196: 
022504,000197:                                                                                                  #        S3435.25
022505,000198:                                                                                                  #        PERIAPO1
022506,000199:                                                                                                  #        SHIFTR1
022507,000200:                                                                                                  #        VNDSPLY
022508,000201:                                                                                                  #        BANKCALL
022509,000202:                                                                                                  #        GOFLASH
022510,000203:                                                                                                  #        GOTOPOOH
022511,000204:                                                                                                  #        VN1645
022512,000205: 
022513,000206: 04,3237           34041        MAINRTNE           STCALL   TDEC1                                 #  PRECISION UPDATE PASSIVE VEHICLE TO
022514,000207: 04,3240           11410                                    INTRPVP                               #     TARGET TIME
022515,000208: 04,3241           77745                           DLOAD                                          
022516,000209: 04,3242           03413                                    TIG                                   
022517,000210: 04,3243           03503                           STORE    INTIME                                
022518,000211: 04,3244           77331                           SSP      VLOAD                                 
022519,000212: 04,3245           02371                                    SUBEXIT                               
022520,000213: 04,3246           11252                                    TEST3979                              
022521,000214: 04,3247           00001                                    RATT                                  
022522,000215: 04,3250           77624                           CALL                                           
022523,000216: 04,3251           72547                                    S3435.25                              
022524,000217: 04,3252           43014        TEST3979           BOFF     BON                                   
022525,000218: 04,3253           04346                                    P39/79SW                              
022526,000219: 04,3254           11263                                    MAINRTN1                              
022527,000220: 04,3255           01311                                    FINALFLG                              

Page 518

022529,000222: 04,3256           11261                                    P39P79                                
022530,000223: 04,3257           77614                           SET                                            
022531,000224: 04,3260           00470                                    UPDATFLG                              
022532,000225: 04,3261           77776        P39P79             EXIT                                           
022533,000226: 04,3262           03310                           TC       DSPLY81                               #  FOR P39 AND P79
022534,000227: 04,3263           51575        MAINRTN1           VLOAD    ABVAL                                 
022535,000228: 04,3264           03646                                    DELVEET3                              
022536,000229: 04,3265           26635                           STOVL    DELVTPI                               #  DELTA V
022537,000230: 04,3266           03640                                    VPASS4                                
022538,000231: 04,3267           51451                           VSU      ABVAL                                 
022539,000232: 04,3270           03620                                    VTPRIME                               
022540,000233: 04,3271           26637                           STOVL    DELVTPF                               #  DELTA V (FINAL) = V'T - VT
022541,000234: 04,3272           03540                                    RACT3                                 
022542,000235: 04,3273           45115                           PDVL     CALL                                  
022543,000236: 04,3274           03612                                    VIPRIME                               
022544,000237: 04,3275           45312                                    PERIAPO1                              #  GET PERIGEE ALTITUDE
022545,000238: 04,3276           77624                           CALL                                           
022546,000239: 04,3277           45422                                    SHIFTR1                               
022547,000240: 04,3300           02641                           STORE    POSTTPI                               
022548,000241: 04,3301           43014                           BON      SET                                   
022549,000242: 04,3302           01311                                    FINALFLG                              
022550,000243: 04,3303           11305                                    DSPLY58                               
022551,000244: 04,3304           00470                                    UPDATFLG                              
022552,000245: 04,3305           77776        DSPLY58            EXIT                                           
022553,000246: 04,3306           33442                           CAF      V06N58SR                              #  DISPLAY HP, DELTA V, DELTA V (FINAL)
022554,000247: 04,3307           03424                           TC       VNDSPLY                               
022555,000248: 04,3310           33443        DSPLY81            CAF      V06N81SR                              #  DISPLAY DELTA V (LV)
022556,000249: 04,3311           03424                           TC       VNDSPLY                               
022557,000250: 04,3312           06006                           TC       INTPRET                               
022558,000251: 04,3313           77214                           CLEAR    VLOAD                                 
022559,000252: 04,3314           01267                                    XDELVFLG                              
022560,000253: 04,3315           03646                                    DELVEET3                              
022561,000254: 04,3316           37646                           STCALL   DELVSIN                               
022562,000255: 04,3317           73005                                    VN1645                                #  DISPLAY TRKMKCNT, TTOGO, +MGA
022563,000256: 04,3320           52014                           BON      GOTO                                  
022564,000257: 04,3321           04306                                    P39/79SW                              
022565,000258: 04,3322           11344                                    P39/P79B                              
022566,000259: 04,3323           11203                                    RECYCLE                               
022567,000260:                                                                                                  #  STABLE ORBIT MIDCOURSE PROGRAM (P39 AND P79)
022568,000261: 
022569,000262:                                                                                                  #  MOD NO -1          LOG SECTION - STABLE ORBIT - P38-P39
022570,000263:                                                                                                  #  MOD BY RUDNICKI.S  DATE 25JAN68
022571,000264: 
022572,000265:                                                                                                  #  FUNCTIONAL DESCRIPTION
022573,000266: 
022574,000267:                                                                                                  #        P39 AND P79 CALCULATE THE REQUIRED DELTA V AND OTHER INITIAL
022575,000268:                                                                                                  #        CONDITIONS REQUIRED BY THE AGC TO MAKE A MIDCOURSE CORRECTION
022576,000269:                                                                                                  #        MANEUVER AFTER COMPLETING THE SOI MANEUVER BUT BEFORE MAKING
022577,000270:                                                                                                  #        THE SOR MANEUVER
022578,000271: 

Page 519

022580,000273:                                                                                                  #  CALLING SEQUENCE
022581,000274: 
022582,000275:                                                                                                  #        ASTRONAUT REQUEST THRU DSKY
022583,000276: 
022584,000277:                                                                                                  #        V37E39E   IF THIS VEHICLE IS ACTIVE VEHICLE
022585,000278:                                                                                                  #        V37E79E   IF OTHER VEHICLE IS ACTIVE VEHICLE
022586,000279: 
022587,000280:                                                                                                  #  INPUT
022588,000281: 
022589,000282:                                                                                                  #        (1) TPASS4   TIME OF INTERCEPT - SAVED FROM P38/P78
022590,000283:                                                                                                  #        (2) TARGTIME TIME THAT PASSIVE VEHICLE IS AT INTERCEPT POINT -
022591,000284:                                                                                                  #                     SAVED FROM P38/P78
022592,000285: 
022593,000286:                                                                                                  #  OUTPUT
022594,000287: 
022595,000288:                                                                                                  #        (1) TRKMKCNT NUMBER OF MARKS
022596,000289:                                                                                                  #        (2) TTOGO    TIME TO GO
022597,000290:                                                                                                  #        (3) +MGA     MIDDLE GIMBAL ANGLE
022598,000291:                                                                                                  #        (4) DELVLVC  DELTA VELOCITY AT MID - LOCAL VERTICAL COORDINATES
022599,000292: 
022600,000293:                                                                                                  #  SUBROUTINES USED
022601,000294: 
022602,000295:                                                                                                  #        AVFLAGA
022603,000296:                                                                                                  #        AVFLAGP
022604,000297:                                                                                                  #        LOADTIME
022605,000298:                                                                                                  #        SELECTMU
022606,000299:                                                                                                  #        PRECSET
022607,000300:                                                                                                  #        S34/35.1
022608,000301:                                                                                                  #        MAINRTNE
022609,000302: 
022610,000303: 04,3324           04555        P39                TC       BANKCALL                              
022611,000304: 04,3325           73726                           CADR     AVFLAGA                               #  THIS VEHICLE ACTIVE
022612,000305: 04,3326           00006                           EXTEND                                         
022613,000306: 04,3327           31422                           DCA      ATIGINC                               
022614,000307: 04,3330           03335                           TC       P39/P79A                              
022615,000308: 04,3331           04555        P79                TC       BANKCALL                              
022616,000309: 04,3332           73741                           CADR     AVFLAGP                               #  OTHER VEHICLE ACTIVE
022617,000310: 04,3333           00006                           EXTEND                                         
022618,000311: 04,3334           31424                           DCA      PTIGINC                               
022619,000312: 04,3335           53764        P39/P79A           DXCH     KT                                    #  TIME TO PREPARE FOR BURN
022620,000313: 04,3336           04555                           TC       BANKCALL                              
022621,000314: 04,3337           73746                           CADR     P20FLGON                              #  SET UPDATFLG, TRACKFLG
022622,000315: 04,3340           06006                           TC       INTPRET                               
022623,000316: 04,3341           45014                           SET      CALL                                  
022624,000317: 04,3342           04066                                    P39/79SW                              
022625,000318: 04,3343           10716                                    SELECTMU                              #  SELECT MU, CLEAR FINALFLG, GO TO VN1645
022626,000319: 04,3344           43234        P39/P79B           RTB      DAD                                   
022627,000320: 04,3345           45505                                    LOADTIME                              
022628,000321: 04,3346           02364                                    KT                                    
022629,000322: 04,3347           03413                           STORE    TIG                                   #  TIG = T (PRESENT) + PREPARATION TIME

Page 520

022631,000324: 04,3350           34041                           STCALL   TDEC1                                 #  PRECISION UPDATE ACTIVE AND PASSIVE
022632,000325: 04,3351           45354                                    PRECSET                               #     VEHICLES TO TIG
022633,000326: 04,3352           77624                           CALL                                           
022634,000327: 04,3353           72522                                    S34/35.1                              #  GET UNIT NORMAL
022635,000328: 04,3354           52145                           DLOAD    GOTO                                  
022636,000329: 04,3355           02615                                    TARGTIME                              
022637,000330: 04,3356           11237                                    MAINRTNE                              #  CALCULATE DELTA V AND DELTA V (LV)
022638,000331:                                                                                                  #  .... PREC/TT ....
022639,000332:                                                                                                  #  SUBROUTINES USED
022640,000333: 
022641,000334:                                                                                                  #        PRECSET
022642,000335:                                                                                                  #        TIMETHET
022643,000336:                                                                                                  #        S34/35.1
022644,000337: 
022645,000338: 04,3357           71220        PREC/TT            STQ      DLOAD                                 
022646,000339: 04,3360           02367                                    RTRN                                  
022647,000340: 04,3361           03413                                    TIG                                   
022648,000341: 04,3362           34041                           STCALL   TDEC1                                 #  PRECISION UPDATE ACTIVE AND PASSIVE
022649,000342: 04,3363           45354                                    PRECSET                               #     VEHICLES TO TIG
022650,000343: 04,3364           53775                           VLOAD    VSR*                                  
022651,000344: 04,3365           03554                                    RPASS3                                
022652,000345: 04,3366           57176                                    0,2                                   
022653,000346: 04,3367           16657                           STODL    RVEC                                  
022654,000347: 04,3370           03754                                    CENTANG                               
022655,000348: 04,3371           71406                           PUSH     COS                                   
022656,000349: 04,3372           16734                           STODL    CSTH                                  
022657,000350: 04,3373           43156                           SIN      SET                                   
022658,000351: 04,3374           03466                                    RVSW                                  
022659,000352: 04,3375           26732                           STOVL    SNTH                                  
022660,000353: 04,3376           03562                                    VPASS3                                
022661,000354: 04,3377           77657                           VSR*                                           
022662,000355: 04,3400           57176                                    0,2                                   
022663,000356: 04,3401           36746                           STCALL   VVEC                                  #  GET TRANSFER TIME BASED ON CENTANG OF
022664,000357: 04,3402           24737                                    TIMETHET                              #     PASSIVE VEHICLE
022665,000358: 04,3403           77624                           CALL                                           
022666,000359: 04,3404           72522                                    S34/35.1                              #  GET UNIT NORMAL
022667,000360: 04,3405           52145                           DLOAD    GOTO                                  
022668,000361: 04,3406           00037                                    T                                     
022669,000362: 04,3407           02367                                    RTRN                                  
022670,000363:                                                                                                  #  .... INTRPVP ....
022671,000364:                                                                                                  #  SUBROUTINES USED
022672,000365: 
022673,000366:                                                                                                  #        CSMPREC
022674,000367:                                                                                                  #        LEMPREC
022675,000368: 
022676,000369: 04,3410           43020        INTRPVP            STQ      BOFF                                  #  PRECISION UPDATE PASSIVE VEHICLE TO
022677,000370: 04,3411           02367                                    RTRN                                  #     TDEC1
022678,000371: 04,3412           01352                                    AVFLAG                                
022679,000372: 04,3413           11420                                    OTHERV                                
022680,000373: 04,3414           77624                           CALL                                           

Page 521

022682,000375: 04,3415           27022                                    CSMPREC                               
022683,000376: 04,3416           77650                           GOTO                                           
022684,000377: 04,3417           02367                                    RTRN                                  
022685,000378: 04,3420           77624        OTHERV             CALL                                           
022686,000379: 04,3421           27036                                    LEMPREC                               
022687,000380: 04,3422           77650                           GOTO                                           
022688,000381: 04,3423           02367                                    RTRN                                  
022689,000382:                                                                                                  #  .... VNDSPLY ....
022690,000383:                                                                                                  #  SUBROUTINES USED
022691,000384: 
022692,000385:                                                                                                  #        BANKCALL
022693,000386:                                                                                                  #        GOFLASH
022694,000387:                                                                                                  #        GOTOPOOH
022695,000388: 
022696,000389: 04,3424           00006        VNDSPLY            EXTEND                                         #  FLASH DISPLAY
022697,000390: 04,3425           23767                           QXCH     RTRN                                  
022698,000391: 04,3426           55765                           TS       VERBNOUN                              
022699,000392: 04,3427           31765                           CA       VERBNOUN                              
022700,000393: 04,3430           04555                           TCR      BANKCALL                              
022701,000394: 04,3431           20624                           CADR     GOFLASH                               
022702,000395: 04,3432           14106                           TCF      GOTOPOOH                              #  TERMINATE
022703,000396: 04,3433           01767                           TC       RTRN                                  #  PROCEED
022704,000397: 04,3434           13427                           TCF      -5                                    #  RECYCLE
022705,000398: 04,3435           01441        V06N33SR           VN       0633                                  
022706,000399: 04,3436           01467        V06N55SR           VN       0655                                  
022707,000400: 04,3437           01006        V04N06SR           VN       0406                                  
022708,000401: 04,3440           01471        V06N57SR           VN       0657                                  
022709,000402: 04,3441           01442        V06N34SR           VN       0634                                  
022710,000403: 04,3442           01472        V06N58SR           VN       0658                                  
022711,000404: 04,3443           01521        V06N81SR           VN       0681                                  

End of include-file STABLE_ORBIT_-_P38-P39.agc.  Parent file is MAIN.agc