Source Code

This is an attempt to recreate Luminary 99 Rev 2, otherwise known as LUM99R2, from Luminary 99 Rev 1 and ephemeris data from Luminary 116. The differences are confined to the last 10-12 lines of the CONTROLLED CONSTANTS. Luminary 99 Rev 1 source-code was transcribed from a printout in the MIT Museum, while Luminary 116 source code was transcribed from a printout belonging to Don Eyles. AGC developer James Kernan, the "rope mother" for the Apollo 11 Lunar Module's AGC, explains as follows: "At the last minute, Dan Lickly, our chief engineer, appeared with ephemerides updates and it took two tries to get it right. The result was that we created Lum99 Revision 1 and Lum99 Revision 2." It is suspected that the former is what's in the MIT Museum, and the latter is what we are trying to recreate here. As for which revision actually flew in Apollo 11, all of the other available surviving evidence points to Rev 1 rather than to Rev 2, so we're just not sure!

047729,000002:                                                                                                  ## Copyright:   Public domain.
047730,000003:                                                                                                  ## Filename:    PLANETARY_INERTIAL_ORIENTATION.agc
047731,000004:                                                                                                  ## Purpose:     Part of the source code for Luminary 1A build 099.
047732,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM)
047733,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
047734,000007:                                                                                                  ##
047735,000008:                                                                                                  ## Assembler:   yaYUL
047736,000009:                                                                                                  ## Contact:     Jim Lawton <jim.lawton@gmail.com>
047737,000010:                                                                                                  ## Website:     www.ibiblio.org/apollo.
047738,000011:                                                                                                  ## Pages:       1140-1148
047739,000012:                                                                                                  ## Mod history: 2009-05-28      JVL     Updated from page images.
047740,000013:                                                                                                  ##              2016-12-17 RSB  Proofed text comments with octopus/ProoferComments
047741,000014:                                                                                                  ##                              and corrected the errors found.
047742,000015:                                                                                                  ##              2017-03-03 RSB  Snapshot of Luminary 99 Rev 1. 
047743,000016:                                                                                                  ##              2017-03-16 RSB  Comment-text fixes identified in 5-way
047744,000017:                                                                                                  ##                              side-by-side diff of Luminary 69/99/116/131/210.
047745,000018: 

Page 1140

047747,000020:                                                                                                  #  ..... RP-TO-R SUBROUTINE .....
047748,000021:                                                                                                  #  SUBROUTINE TO CONVERT RP (VECTOR IN PLANETARY COORDINATE SYSTEM, EITHER
047749,000022:                                                                                                  #  EARTH-FIXED OR MOON-FIXED) TO R (SAME VECTOR IN THE BASIC REF. SYSTEM)
047750,000023: 
047751,000024:                                                                                                  #        R = MT(T) * (RP + LP X RP)      MT = M MATRIX TRANSPOSE
047752,000025: 
047753,000026:                                                                                                  #  CALLING SEQUENCE
047754,000027:                                                                                                  #        L       CALL
047755,000028:                                                                                                  #        L+1             RP-TO-R
047756,000029: 
047757,000030:                                                                                                  #  SUBROUTINES USED
047758,000031:                                                                                                  #        EARTHMX, MOONMX, EARTHL
047759,000032: 
047760,000033:                                                                                                  #        ITEMS AVAILABLE FROM LAUNCH DATA
047761,000034:                                                                                                  #                504LM = THE LIBRATION VECTOR L OF THE MOON AT TIME TIMSUBL, EXPRESSED
047762,000035:                                                                                                  #                        IN THE MOON-FIXED COORD. SYSTEM         RADIANS B0
047763,000036: 
047764,000037:                                                                                                  #        ITEMS NECESSARY FOR SUBR. USED (SEE DESCRIPTION OF SUBR.)
047765,000038: 
047766,000039:                                                                                                  #  INPUT
047767,000040:                                                                                                  #        MPAC = 0 FOR EARTH, NON-ZERO FOR MOON
047768,000041:                                                                                                  #        0-5D = RP VECTOR
047769,000042:                                                                                                  #        6-7D = TIME
047770,000043: 
047771,000044:                                                                                                  #  OUTPUT
047772,000045:                                                                                                  #        MPAC = R VECTOR METERS B-29 FOR EARTH, B-27 FOR MOON
047773,000046: 
047774,000047: 26,2000                                           SETLOC   PLANTIN1                              
047775,000048: 26,2000                                           BANK                                           
047776,000049: 
047777,000050: 26,3716                                           COUNT*   $$/LUROT                              
047778,000051: 
047779,000052: 26,3716           46020        RP-TO-R            STQ      BHIZ                                  
047780,000053: 26,3717           00050                                    RPREXIT                               
047781,000054: 26,3720           55733                                    RPTORA                                
047782,000055: 26,3721           77624                           CALL                                           #  COMPUTE M MATRIX FOR MOON
047783,000056: 26,3722           51720                                    MOONMX                                #  LP=LM FOR MOON  RADIANS B0
047784,000057: 26,3723           77775                           VLOAD                                          
047785,000058: 26,3724           02013                                    504LM                                 
047786,000059: 26,3725           53235        RPTORB             VXV      VAD                                   
047787,000060: 26,3726           00001                                    504RPR                                
047788,000061: 26,3727           00001                                    504RPR                                
047789,000062: 26,3730           52105                           VXM      GOTO                                  
047790,000063: 26,3731           00025                                    MMATRIX                               #  MPAC=R=MT(T)*(RP+LPXRP)
047791,000064: 26,3732           51706                                    RPRPXXXX                              #  RESET PUSHLOC TO 0 BEFORE EXITING
047792,000065: 26,3733           77624        RPTORA             CALL                                           #  EARTH COMPUTATIONS
047793,000066: 26,3734           55743                                    EARTHMX                               #  M MATRIX B-1
047794,000067: 26,3735           77624                           CALL                                           
047795,000068: 26,3736           15753                                    EARTHL                                #  L VECTOR RADIANS B0
047796,000069: 26,3737           76521                           MXV      VSL1                                  #  LP=M(T)*L  RAD B-0
047797,000070: 26,3740           00025                                    MMATRIX                               

Page 1141

047799,000072: 26,3741           77650                           GOTO                                           
047800,000073: 26,3742           55725                                    RPTORB                                
047801,000074: 24,2000                                           SETLOC   PLANTIN                               
047802,000075: 24,2000                                           BANK                                           
047803,000076: 24,3670                                           COUNT*   $$/LUROT                              
047804,000077: 

Page 1142

047806,000079:                                                                                                  #  ..... R-TO-RP SUBROUTINE .....
047807,000080:                                                                                                  #  SUBROUTINE TO CONVERT R (VECTOR IN REFERENCE COORD. SYSTEM) TO RP
047808,000081:                                                                                                  #  (VECTOR IN PLANETARY COORD SYSTEM) EITHER EARTH-FIXED OR MOON-FIXED
047809,000082: 
047810,000083:                                                                                                  #        RP = M(T) * (R - L X R)
047811,000084: 
047812,000085:                                                                                                  #  CALLING SEQUENCE
047813,000086:                                                                                                  #        L       CALL
047814,000087:                                                                                                  #        L+1             R-TO-RP
047815,000088: 
047816,000089:                                                                                                  #  SUBROUTINES USED
047817,000090:                                                                                                  #        EARTHMX, MOONMX, EARTHL
047818,000091: 
047819,000092:                                                                                                  #  INPUT
047820,000093:                                                                                                  #        MPAC = 0 FOR EARTH, NON-ZERO FOR MOON
047821,000094:                                                                                                  #        0-5D = R VECTOR
047822,000095:                                                                                                  #        6-7D = TIME
047823,000096: 
047824,000097:                                                                                                  #        ITEMS AVAILABLE FROM LAUNCH DATA
047825,000098:                                                                                                  #                504LM = THE LIBRATION VECTOR L OF THE MOON AT TIME TIMSUBL, EXPRESSED
047826,000099:                                                                                                  #                        IN THE MOON-FIXED COORD. SYSTEM   RADIANS B0
047827,000100: 
047828,000101:                                                                                                  #        ITEMS NECESSARY FOR SUBROUTINES USED (SEE DESCRIPTION OF SUBR.)
047829,000102: 
047830,000103:                                                                                                  #  OUTPUT
047831,000104:                                                                                                  #        MPAC = RP VECTOR METERS B-29 FOR EARTH, B-27 FOR MOON
047832,000105: 
047833,000106: 24,3670           46020        R-TO-RP            STQ      BHIZ                                  
047834,000107: 24,3671           00050                                    RPREXIT                               
047835,000108: 24,3672           51712                                    RTORPA                                
047836,000109: 24,3673           77624                           CALL                                           
047837,000110: 24,3674           51720                                    MOONMX                                
047838,000111: 24,3675           61375                           VLOAD    VXM                                   
047839,000112: 24,3676           02013                                    504LM                                 #  LP=LM
047840,000113: 24,3677           00025                                    MMATRIX                               
047841,000114: 24,3700           77772                           VSL1                                           #  L = MT(T)*LP          RADIANS B0
047842,000115: 24,3701           51235        RTORPB             VXV      BVSU                                  
047843,000116: 24,3702           00001                                    504RPR                                
047844,000117: 24,3703           00001                                    504RPR                                
047845,000118: 24,3704           77721                           MXV                                            #  M(T)*(R-LXR)          B-2
047846,000119: 24,3705           00025                                    MMATRIX                               
047847,000120: 24,3706           40372        RPRPXXXX           VSL1     SETPD                                 
047848,000121: 24,3707           00001                                    0D                                    
047849,000122: 24,3710           77650                           GOTO                                           
047850,000123: 24,3711           00050                                    RPREXIT                               
047851,000124: 24,3712           77624        RTORPA             CALL                                           #  EARTH COMPUTATIONS
047852,000125: 24,3713           55743                                    EARTHMX                               
047853,000126: 24,3714           77624                           CALL                                           
047854,000127: 24,3715           15753                                    EARTHL                                
047855,000128: 24,3716           77650                           GOTO                                           #  MPAC=L=(-AX,-AY,0)    RAD B-0
047856,000129: 24,3717           51701                                    RTORPB                                
047857,000130: 

Page 1143

047859,000132:                                                                                                  #  ..... MOONMX SUBROUTINE .....
047860,000133:                                                                                                  #  SUBROUTINE TO COMPUTE THE TRANSFORMATION MATRIX M FOR THE MOON
047861,000134: 
047862,000135:                                                                                                  #  CALLING SEQUENCE
047863,000136:                                                                                                  #        L       CALL
047864,000137:                                                                                                  #        L+1             MOONMX
047865,000138: 
047866,000139:                                                                                                  #  SUBROUTINES USED
047867,000140:                                                                                                  #        NEWANGLE
047868,000141: 
047869,000142:                                                                                                  #  INPUT
047870,000143:                                                                                                  #        6-7D = TIME
047871,000144: 
047872,000145:                                                                                                  #        ITEMS AVAILABLE FROM LAUNCH DATA
047873,000146:                                                                                                  #                BSUBO, BDOT
047874,000147:                                                                                                  #                TIMSUBO, NODIO, NODDOT, FSUBO, FDOT
047875,000148:                                                                                                  #                COSI = COS(I)   B-1
047876,000149:                                                                                                  #                SINI = SIN(I)   B-1
047877,000150:                                                                                                  #                  I IS THE ANGLE BETWEEN THE MEAN LUNAR EQUATORIAL PLANE AND THE
047878,000151:                                                                                                  #                  PLANE OF THE ECLIPTIC (1 DEGREE 32.1 MINUTES)
047879,000152: 
047880,000153:                                                                                                  #  OUTPUT
047881,000154:                                                                                                  #        MMATRIX = 3X3 M MATRIX B-1      (STORED IN VAC AREA)
047882,000155: 
047883,000156: 24,3720           40220        MOONMX             STQ      SETPD                                 
047884,000157: 24,3721           00051                                    EARTHMXX                              
047885,000158: 24,3722           00011                                    8D                                    
047886,000159: 24,3723           77770                           AXT,1                                          #  B REQUIRES SL 0, SL 5 IN NEWANGLE
047887,000160: 24,3724           00005                                    5                                     
047888,000161: 24,3725           65345                           DLOAD    PDDL                                  #  PD 10D        8-9D=BSUBO
047889,000162: 24,3726           14017                                    BSUBO                                 #                10-11D=BDOT
047890,000163: 24,3727           14011                                    BDOT                                  
047891,000164: 24,3730           45006                           PUSH     CALL                                  #  PD 12D
047892,000165: 24,3731           53743                                    NEWANGLE                              #  EXIT WITH PD 8D AND MPAC= B   REVS B0
047893,000166: 24,3732           71406                           PUSH     COS                                   #  PD 10D
047894,000167: 24,3733           14041                           STODL    COB                                   #  PD 8D         COS(B) B-1
047895,000168: 24,3734           77756                           SIN                                            #                SIN(B) B-1
047896,000169: 24,3735           14043                           STODL    SOB                                   #  SETUP INPUT FOR NEWANGLE
047897,000170: 24,3736           14015                                    FSUBO                                 #                        8-9D=FSUBO
047898,000171: 24,3737           41525                           PDDL     PUSH                                  #  PD 10D THEN 12D       10-11D=FDOT
047899,000172: 24,3740           14007                                    FDOT                                  
047900,000173: 24,3741           45170                           AXT,1    CALL                                  #  F REQUIRES SL 1, SL 6 IN NEWANGLE
047901,000174: 24,3742           00004                                    4                                     
047902,000175: 24,3743           53743                                    NEWANGLE                              #  EXIT WITH PD 8D AND MPAC= F REVS B0
047903,000176: 24,3744           14027                           STODL    AVECTR     +2                         #  SAVE F TEMP
047904,000177: 24,3745           14013                                    NODIO                                 #                        8-9D=NODIO
047905,000178: 24,3746           41525                           PDDL     PUSH                                  #  PD 10D THEN 12D       10-11D=NODDOT
047906,000179: 24,3747           14005                                    NODDOT                                #                        MPAC=T
047907,000180: 24,3750           45170                           AXT,1    CALL                                  #  NODE REQUIRES SL 0, SL 5 IN NEWANGLE
047908,000181: 24,3751           00005                                    5                                     
047909,000182: 24,3752           53743                                    NEWANGLE                              #  EXIT WITH PD 8D AND MPAC= NODI REVS B0

Page 1144

047911,000184: 24,3753           71406                           PUSH     COS                                   #  PD 10D        8-9D= NODI REVS B0
047912,000185: 24,3754           77606                           PUSH                                           #  PD 12D        10-11D= COS(NODI) B-1
047913,000186: 24,3755           00025                           STORE    AVECTR                                
047914,000187: 24,3756           76405                           DMP      SL1R                                  
047915,000188: 24,3757           00041                                    COB                                   #                         COS(NODI) B-1
047916,000189: 24,3760           14035                           STODL    BVECTR     +2                         #  PD 10D  20-25D=AVECTR= COB*SIN(NODI)
047917,000190: 24,3761           76405                           DMP      SL1R                                  #                         SOB*SIN(NODI)
047918,000191: 24,3762           00043                                    SOB                                   
047919,000192: 24,3763           14037                           STODL    BVECTR     +4                         #  PD 8D
047920,000193: 24,3764           41556                           SIN      PUSH                                  #  PD 10D                -SIN(NODI) B-1
047921,000194: 24,3765           77676                           DCOMP                                          #          26-31D=BVECTR= COB*COS(NODI)
047922,000195: 24,3766           14033                           STODL    BVECTR                                #  PD 8D                  SOB*COS(NODI)
047923,000196: 24,3767           00027                                    AVECTR     +2                         #  MOVE F FROM TEMP LOC. TO 504F
047924,000197: 24,3770           14007                           STODL    504F                                  
047925,000198: 24,3771           76405                           DMP      SL1R                                  
047926,000199: 24,3772           00041                                    COB                                   
047927,000200: 24,3773           77650                           GOTO                                           
047928,000201: 24,3774           53671                                    MOONMXA                               
047929,000202: 
047930,000203: 25,3671                                           BANK     25                                    
047931,000204: 25,2000                                           SETLOC   PLANTIN3                              
047932,000205: 25,2000                                           BANK                                           
047933,000206: 25,3671                                           COUNT*   $$/LUROT                              
047934,000207: 
047935,000208: 25,3671           14027        MOONMXA            STODL    AVECTR     +2                         
047936,000209: 25,3672           00011                                    SINNODI                               #  8-9D=SIN(NODI) B-1
047937,000210: 25,3673           76405                           DMP      SL1R                                  
047938,000211: 25,3674           00043                                    SOB                                   
047939,000212: 25,3675           14031                           STODL    AVECTR     +4                         #                         0
047940,000213: 25,3676           06522                                    HI6ZEROS                              #        8-13D= CVECTR= -SOB  B-1
047941,000214: 25,3677           57525                           PDDL     DCOMP                                 #  PD 10D                COB
047942,000215: 25,3700           00043                                    SOB                                   
047943,000216: 25,3701           63325                           PDDL     PDVL                                  #  PD 12D THEN PD 14D
047944,000217: 25,3702           00041                                    COB                                   
047945,000218: 25,3703           00033                                    BVECTR                                
047946,000219: 25,3704           63361                           VXSC     PDVL                                  #  PD 20D        BVECTR*SINI  B-2
047947,000220: 25,3705           14003                                    SINI                                  
047948,000221: 25,3706           00011                                    CVECTR                                
047949,000222: 25,3707           53361                           VXSC     VAD                                   #  PD 14D        CVECTR*COSI  B-2
047950,000223: 25,3710           14001                                    COSI                                  
047951,000224: 25,3711           77772                           VSL1                                           
047952,000225: 25,3712           24041                           STOVL    MMATRIX    +12D                       #  PD 8D  M2=BVECTR*SINI+CVECTR*COSI  B-1
047953,000226: 25,3713           63361                           VXSC     PDVL                                  #  PD 14D
047954,000227: 25,3714           14003                                    SINI                                  #                CVECTR*SINI  B-2
047955,000228: 25,3715           00033                                    BVECTR                                
047956,000229: 25,3716           52361                           VXSC     VSU                                   #  PD 8D         BVECTR*COSI  B-2
047957,000230: 25,3717           14001                                    COSI                                  
047958,000231: 25,3720           65372                           VSL1     PDDL                                  #  PD 14D
047959,000232: 25,3721           00007                                    504F                                  #  8-13D=DVECTR=BVECTR*COSI-CVECTR*SINI  B-1
047960,000233: 25,3722           74346                           COS      VXSC                                  

Page 1145

047962,000235: 25,3723           00011                                    DVECTR                                
047963,000236: 25,3724           73525                           PDDL     SIN                                   #  PD 20D  14-19D= DVECTR*COSF  B-2
047964,000237: 25,3725           00007                                    504F                                  
047965,000238: 25,3726           52361                           VXSC     VSU                                   #  PD 14D          AVECTR*SINF  B-2
047966,000239: 25,3727           00025                                    AVECTR                                
047967,000240: 25,3730           77772                           VSL1                                           
047968,000241: 25,3731           14033                           STODL    MMATRIX    +6                         #  M1= AVECTR*SINF-DVECTR*COSF  B-1
047969,000242: 25,3732           00007                                    504F                                  
047970,000243: 25,3733           74356                           SIN      VXSC                                  #  PD 8D
047971,000244: 25,3734           71525                           PDDL     COS                                   #  PD 14D  8-13D=DVECTR*SINF B-2
047972,000245: 25,3735           00007                                    504F                                  
047973,000246: 25,3736           53361                           VXSC     VAD                                   #  PD 8D         AVECTR*COSF B-2
047974,000247: 25,3737           00025                                    AVECTR                                
047975,000248: 25,3740           57572                           VSL1     VCOMP                                 
047976,000249: 25,3741           34025                           STCALL   MMATRIX                               #  M0= -(AVECTR*COSF+DVECTR*SINF)  B-1
047977,000250: 25,3742           00051                                    EARTHMXX                              
047978,000251: 
047979,000252:                                                                                                  #  COMPUTE X=X0+(XDOT)(T+T0)
047980,000253:                                                                                                  #  8-9D= XO (REVS B-0), PUSHLOC SET AT 12D
047981,000254:                                                                                                  #  10-11D=XDOT (REVS/CSEC) SCALED B+23 FOR WEARTH,B+28 FOR NODDOT AND BDOT
047982,000255:                                                                                                  #                        AND B+27 FOR FDOT
047983,000256:                                                                                                  #   X1=DIFFERENCE IN 23 AND SCALING OF XDOT, =0 FOR WEARTH, 5 FOR NODDOT AND
047984,000257:                                                                                                  #                                        BDOT AND 4 FOR FDOT
047985,000258:                                                                                                  #  6-7D=T (CSEC B-28), TIMSUBO= (CSEC B-42 TRIPLE PREC.)
047986,000259: 
047987,000260: 25,3743           54345        NEWANGLE           DLOAD    SR                                    #  ENTER PD 12D
047988,000261: 25,3744           00007                                    6D                                    
047989,000262: 25,3745           20617                                    14D                                   
047990,000263: 25,3746           72371                           TAD      TLOAD                                 #  CHANGE MODE TO TP
047991,000264: 25,3747           01707                                    TIMSUBO                               
047992,000265: 25,3750           00155                                    MPAC                                  
047993,000266: 25,3751           14017                           STODL    TIMSUBM                               #  T+T0 CSEC B-42
047994,000267: 25,3752           00020                                    TIMSUBM    +1                         
047995,000268: 25,3753           77605                           DMP                                            #  PD 10D        MULT BY XDOT IN 10-11D
047996,000269: 25,3754           43257                           SL*      DAD                                   #  PD 8D         ADD XO IN 8-9D AFTER SHIFTING
047997,000270: 25,3755           20206                                    5,1                                   #                SUCH THAT SCALING IS B-0
047998,000271: 25,3756           67206                           PUSH     SLOAD                                 #  PD 10D  SAVE PARTIAL (X0+XDOT*T) IN 8-9D
047999,000272: 25,3757           00017                                    TIMSUBM                               
048000,000273: 25,3760           41261                           SL       DMP                                   
048001,000274: 25,3761           20212                                    9D                                    
048002,000275: 25,3762           00013                                    10D                                   #  XDOT
048003,000276: 25,3763           43257                           SL*      DAD                                   #  PD 8D         SHIFT SUCH THAT THIS PART OF X
048004,000277: 25,3764           20213                                    10D,1                                 #                IS SCALED REVS/CSEC B-0
048005,000278: 25,3765           77600                           BOV                                            #  TURN OFF OVERFLOW IF SET BY SHIFT
048006,000279: 25,3766           53767                                    +1                                    #  INSTRUCTION BEFORE EXITING
048007,000280: 25,3767           77616                           RVQ                                            #  MPAC=X= X0+(XDOT)(T+T0)  REVS B0
048008,000281: 

Page 1146

048010,000283:                                                                                                  #  ..... EARTHMX SUBROUTINE .....
048011,000284:                                                                                                  #  SUBROUTINE TO COMPUTE THE TRANSFORMATION MATRIX M FOR THE EARTH
048012,000285: 
048013,000286:                                                                                                  #  CALLING SEQUENCE
048014,000287:                                                                                                  #        L       CALL
048015,000288:                                                                                                  #        L+1             EARTHMX
048016,000289: 
048017,000290:                                                                                                  #  SUBROUTINES USED
048018,000291:                                                                                                  #        NEWANGLE
048019,000292: 
048020,000293:                                                                                                  #  INPUT
048021,000294:                                                                                                  #        INPUT AVAILABLE FROM LAUNCH DATA        AZO  REVS B-0
048022,000295:                                                                                                  #                                                TEPHEM  CSEC B-42
048023,000296:                                                                                                  #        6-7D= TIME CSEC B-28
048024,000297: 
048025,000298:                                                                                                  #  OUTPUT
048026,000299:                                                                                                  #        MMATRIX= 3X3 M MATRIX B-1       (STORED IN VAC AREA)
048027,000300: 
048028,000301: 26,3743                                           BANK     26                                    
048029,000302: 26,2000                                           SETLOC   PLANTIN1                              
048030,000303: 26,2000                                           BANK                                           
048031,000304: 26,3743                                           COUNT*   $$/LUROT                              
048032,000305: 
048033,000306: 26,3743           40220        EARTHMX            STQ      SETPD                                 #  SET 8-9D=AZO
048034,000307: 26,3744           00051                                    EARTHMXX                              
048035,000308: 26,3745           00011                                    8D                                    #  10-11D=WEARTH
048036,000309: 26,3746           77770                           AXT,1                                          #  FOR SL 5, AND SL 10 IN NEWANGLE
048037,000310: 26,3747           00000                                    0                                     
048038,000311: 26,3750           65345                           DLOAD    PDDL                                  #  LEAVING PD SET AT 12D FOR NEWANGLE
048039,000312: 26,3751           01712                                    AZO                                   
048040,000313: 26,3752           14021                                    WEARTH                                
048041,000314: 26,3753           45006                           PUSH     CALL                                  
048042,000315: 26,3754           53743                                    NEWANGLE                              
048043,000316: 26,3755           41401                           SETPD    PUSH                                  #  18-19D=504AZ
048044,000317: 26,3756           00023                                    18D                                   #                         COS(AZ)   SIN(AZ)     0
048045,000318: 26,3757           65346                           COS      PDDL                                  #  20-37D=  MMATRIX=     -SIN(AZ)   COS(AZ)     0    B-1
048046,000319: 26,3760           00023                                    504AZ                                 #                            0         0        1
048047,000320: 26,3761           65356                           SIN      PDDL                                  
048048,000321: 26,3762           06522                                    HI6ZEROS                              
048049,000322: 26,3763           73525                           PDDL     SIN                                   
048050,000323: 26,3764           00023                                    504AZ                                 
048051,000324: 26,3765           65276                           DCOMP    PDDL                                  
048052,000325: 26,3766           00023                                    504AZ                                 
048053,000326: 26,3767           63346                           COS      PDVL                                  
048054,000327: 26,3770           06522                                    HI6ZEROS                              
048055,000328: 26,3771           41525                           PDDL     PUSH                                  
048056,000329: 26,3772           06520                                    HIDPHALF                              
048057,000330: 26,3773           77650                           GOTO                                           
048058,000331: 26,3774           00051                                    EARTHMXX                              
048059,000332: 

Page 1147

048061,000334:                                                                                                  #  ..... EARTHL SUBROUTINE .....
048062,000335:                                                                                                  #  SUBROUTINE TO COMPUTE L VECTOR FOR EARTH
048063,000336: 
048064,000337:                                                                                                  #  CALLING SEQUENCE
048065,000338:                                                                                                  #        L       CALL
048066,000339:                                                                                                  #        L+1             EARTHL
048067,000340: 
048068,000341:                                                                                                  #  INPUT
048069,000342:                                                                                                  #        AXO,AYO SET AT LAUNCH TIME WITH AYO IMMEDIATELY FOLLOWING AXO IN CORE
048070,000343: 
048071,000344:                                                                                                  #  OUTPUT
048072,000345:                                                                                                  #                -AX
048073,000346:                                                                                                  #        MPAC=   -AY     RADIANS B-0
048074,000347:                                                                                                  #                  0
048075,000348: 
048076,000349: 06,3753                                           BANK     06                                    
048077,000350: 06,2000                                           SETLOC   EARTHLOC                              
048078,000351: 06,2000                                           BANK                                           
048079,000352: 06,3753                                           COUNT*   $$/LUROT                              
048080,000353: 
048081,000354: 06,3753           57545        EARTHL             DLOAD    DCOMP                                 
048082,000355: 06,3754           01716                                    AXO                                   
048083,000356: 06,3755           14017                           STODL    504LPL                                
048084,000357: 06,3756           01714                                    -AYO                                  
048085,000358: 06,3757           14021                           STODL    504LPL     +2                         
048086,000359: 06,3760           24007                                    LO6ZEROS                              
048087,000360: 06,3761           24023                           STOVL    504LPL     +4                         
048088,000361: 06,3762           00017                                    504LPL                                
048089,000362: 06,3763           77616                           RVQ                                            
048090,000363: 

Page 1148

048092,000365:                                                                                                  #  CONSTANTS AND ERASABLE ASSIGNMENTS
048093,000366: 
048094,000367: 06,3764  12,2004               1B1                =        DP1/2                                 #  1  SCALED B-1
048095,000368: 06,3764  0000050               RPREXIT            =        S1                                    #  R-TO-RP AND RP-TO-R SUBR EXIT
048096,000369: 06,3764  0000051               EARTHMXX           =        S2                                    #  EARTHMX, MOONMX SUBR. EXITS
048097,000370: 06,3764                        504RPR             =        0D                                    #  6 REGS        R OR RP VECTOR
048098,000371: 06,3764                        SINNODI            =        8D                                    #  2             SIN(NODI)
048099,000372: 06,3764                        DVECTR             =        8D                                    #  6             D VECTOR MOON
048100,000373: 06,3764                        CVECTR             =        8D                                    #  6             C VECTR MOON
048101,000374: 06,3764                        504AZ              =        18D                                   #  2             AZ
048102,000375: 06,3764                        TIMSUBM            =        14D                                   #  3             TIME SUB M (MOON) T+T0 IN GETAZ
048103,000376: 06,3764                        504LPL             =        14D                                   #  6             L OR LP VECTOR
048104,000377: 06,3764                        AVECTR             =        20D                                   #  6             A VECTOR (MOON)
048105,000378: 06,3764                        BVECTR             =        26D                                   #  6             B VECTOR (MOON)
048106,000379: 06,3764                        MMATRIX            =        20D                                   #  18            M MATRIX
048107,000380: 06,3764                        COB                =        32D                                   #  2             COS(B) B-1
048108,000381: 06,3764                        SOB                =        34D                                   #  2             SIN(B) B-1
048109,000382: 06,3764                        504F               =        6D                                    #  2             F(MOON)
048110,000383: 

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