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!

047720,000002:                                                                                                  ## Copyright:   Public domain.
047721,000003:                                                                                                  ## Filename:    PLANETARY_INERTIAL_ORIENTATION.agc
047722,000004:                                                                                                  ## Purpose:     Part of the source code for Luminary 1A build 099.
047723,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM)
047724,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
047725,000007:                                                                                                  ##
047726,000008:                                                                                                  ## Assembler:   yaYUL
047727,000009:                                                                                                  ## Contact:     Jim Lawton <jim.lawton@gmail.com>
047728,000010:                                                                                                  ## Website:     www.ibiblio.org/apollo.
047729,000011:                                                                                                  ## Pages:       1140-1148
047730,000012:                                                                                                  ## Mod history: 2009-05-28      JVL     Updated from page images.
047731,000013:                                                                                                  ##              2016-12-17 RSB  Proofed text comments with octopus/ProoferComments
047732,000014:                                                                                                  ##                              and corrected the errors found.
047733,000015:                                                                                                  ##              2017-03-03 RSB  Snapshot of Luminary 99 Rev 1. 
047734,000016:                                                                                                  ##              2017-03-16 RSB  Comment-text fixes identified in 5-way
047735,000017:                                                                                                  ##                              side-by-side diff of Luminary 69/99/116/131/210.
047736,000018: 

Page 1140

047738,000020:                                                                                                  #  ..... RP-TO-R SUBROUTINE .....
047739,000021:                                                                                                  #  SUBROUTINE TO CONVERT RP (VECTOR IN PLANETARY COORDINATE SYSTEM, EITHER
047740,000022:                                                                                                  #  EARTH-FIXED OR MOON-FIXED) TO R (SAME VECTOR IN THE BASIC REF. SYSTEM)
047741,000023: 
047742,000024:                                                                                                  #        R = MT(T) * (RP + LP X RP)      MT = M MATRIX TRANSPOSE
047743,000025: 
047744,000026:                                                                                                  #  CALLING SEQUENCE
047745,000027:                                                                                                  #        L       CALL
047746,000028:                                                                                                  #        L+1             RP-TO-R
047747,000029: 
047748,000030:                                                                                                  #  SUBROUTINES USED
047749,000031:                                                                                                  #        EARTHMX, MOONMX, EARTHL
047750,000032: 
047751,000033:                                                                                                  #        ITEMS AVAILABLE FROM LAUNCH DATA
047752,000034:                                                                                                  #                504LM = THE LIBRATION VECTOR L OF THE MOON AT TIME TIMSUBL, EXPRESSED
047753,000035:                                                                                                  #                        IN THE MOON-FIXED COORD. SYSTEM         RADIANS B0
047754,000036: 
047755,000037:                                                                                                  #        ITEMS NECESSARY FOR SUBR. USED (SEE DESCRIPTION OF SUBR.)
047756,000038: 
047757,000039:                                                                                                  #  INPUT
047758,000040:                                                                                                  #        MPAC = 0 FOR EARTH, NON-ZERO FOR MOON
047759,000041:                                                                                                  #        0-5D = RP VECTOR
047760,000042:                                                                                                  #        6-7D = TIME
047761,000043: 
047762,000044:                                                                                                  #  OUTPUT
047763,000045:                                                                                                  #        MPAC = R VECTOR METERS B-29 FOR EARTH, B-27 FOR MOON
047764,000046: 
047765,000047: 26,2000                                           SETLOC   PLANTIN1                              
047766,000048: 26,2000                                           BANK                                           
047767,000049: 
047768,000050: 26,3716                                           COUNT*   $$/LUROT                              
047769,000051: 
047770,000052: 26,3716           46020        RP-TO-R            STQ      BHIZ                                  
047771,000053: 26,3717           00050                                    RPREXIT                               
047772,000054: 26,3720           55733                                    RPTORA                                
047773,000055: 26,3721           77624                           CALL                                           #  COMPUTE M MATRIX FOR MOON
047774,000056: 26,3722           51720                                    MOONMX                                #  LP=LM FOR MOON  RADIANS B0
047775,000057: 26,3723           77775                           VLOAD                                          
047776,000058: 26,3724           02013                                    504LM                                 
047777,000059: 26,3725           53235        RPTORB             VXV      VAD                                   
047778,000060: 26,3726           00001                                    504RPR                                
047779,000061: 26,3727           00001                                    504RPR                                
047780,000062: 26,3730           52105                           VXM      GOTO                                  
047781,000063: 26,3731           00025                                    MMATRIX                               #  MPAC=R=MT(T)*(RP+LPXRP)
047782,000064: 26,3732           51706                                    RPRPXXXX                              #  RESET PUSHLOC TO 0 BEFORE EXITING
047783,000065: 26,3733           77624        RPTORA             CALL                                           #  EARTH COMPUTATIONS
047784,000066: 26,3734           55743                                    EARTHMX                               #  M MATRIX B-1
047785,000067: 26,3735           77624                           CALL                                           
047786,000068: 26,3736           15753                                    EARTHL                                #  L VECTOR RADIANS B0
047787,000069: 26,3737           76521                           MXV      VSL1                                  #  LP=M(T)*L  RAD B-0
047788,000070: 26,3740           00025                                    MMATRIX                               

Page 1141

047790,000072: 26,3741           77650                           GOTO                                           
047791,000073: 26,3742           55725                                    RPTORB                                
047792,000074: 24,2000                                           SETLOC   PLANTIN                               
047793,000075: 24,2000                                           BANK                                           
047794,000076: 24,3670                                           COUNT*   $$/LUROT                              
047795,000077: 

Page 1142

047797,000079:                                                                                                  #  ..... R-TO-RP SUBROUTINE .....
047798,000080:                                                                                                  #  SUBROUTINE TO CONVERT R (VECTOR IN REFERENCE COORD. SYSTEM) TO RP
047799,000081:                                                                                                  #  (VECTOR IN PLANETARY COORD SYSTEM) EITHER EARTH-FIXED OR MOON-FIXED
047800,000082: 
047801,000083:                                                                                                  #        RP = M(T) * (R - L X R)
047802,000084: 
047803,000085:                                                                                                  #  CALLING SEQUENCE
047804,000086:                                                                                                  #        L       CALL
047805,000087:                                                                                                  #        L+1             R-TO-RP
047806,000088: 
047807,000089:                                                                                                  #  SUBROUTINES USED
047808,000090:                                                                                                  #        EARTHMX, MOONMX, EARTHL
047809,000091: 
047810,000092:                                                                                                  #  INPUT
047811,000093:                                                                                                  #        MPAC = 0 FOR EARTH, NON-ZERO FOR MOON
047812,000094:                                                                                                  #        0-5D = R VECTOR
047813,000095:                                                                                                  #        6-7D = TIME
047814,000096: 
047815,000097:                                                                                                  #        ITEMS AVAILABLE FROM LAUNCH DATA
047816,000098:                                                                                                  #                504LM = THE LIBRATION VECTOR L OF THE MOON AT TIME TIMSUBL, EXPRESSED
047817,000099:                                                                                                  #                        IN THE MOON-FIXED COORD. SYSTEM   RADIANS B0
047818,000100: 
047819,000101:                                                                                                  #        ITEMS NECESSARY FOR SUBROUTINES USED (SEE DESCRIPTION OF SUBR.)
047820,000102: 
047821,000103:                                                                                                  #  OUTPUT
047822,000104:                                                                                                  #        MPAC = RP VECTOR METERS B-29 FOR EARTH, B-27 FOR MOON
047823,000105: 
047824,000106: 24,3670           46020        R-TO-RP            STQ      BHIZ                                  
047825,000107: 24,3671           00050                                    RPREXIT                               
047826,000108: 24,3672           51712                                    RTORPA                                
047827,000109: 24,3673           77624                           CALL                                           
047828,000110: 24,3674           51720                                    MOONMX                                
047829,000111: 24,3675           61375                           VLOAD    VXM                                   
047830,000112: 24,3676           02013                                    504LM                                 #  LP=LM
047831,000113: 24,3677           00025                                    MMATRIX                               
047832,000114: 24,3700           77772                           VSL1                                           #  L = MT(T)*LP          RADIANS B0
047833,000115: 24,3701           51235        RTORPB             VXV      BVSU                                  
047834,000116: 24,3702           00001                                    504RPR                                
047835,000117: 24,3703           00001                                    504RPR                                
047836,000118: 24,3704           77721                           MXV                                            #  M(T)*(R-LXR)          B-2
047837,000119: 24,3705           00025                                    MMATRIX                               
047838,000120: 24,3706           40372        RPRPXXXX           VSL1     SETPD                                 
047839,000121: 24,3707           00001                                    0D                                    
047840,000122: 24,3710           77650                           GOTO                                           
047841,000123: 24,3711           00050                                    RPREXIT                               
047842,000124: 24,3712           77624        RTORPA             CALL                                           #  EARTH COMPUTATIONS
047843,000125: 24,3713           55743                                    EARTHMX                               
047844,000126: 24,3714           77624                           CALL                                           
047845,000127: 24,3715           15753                                    EARTHL                                
047846,000128: 24,3716           77650                           GOTO                                           #  MPAC=L=(-AX,-AY,0)    RAD B-0
047847,000129: 24,3717           51701                                    RTORPB                                
047848,000130: 

Page 1143

047850,000132:                                                                                                  #  ..... MOONMX SUBROUTINE .....
047851,000133:                                                                                                  #  SUBROUTINE TO COMPUTE THE TRANSFORMATION MATRIX M FOR THE MOON
047852,000134: 
047853,000135:                                                                                                  #  CALLING SEQUENCE
047854,000136:                                                                                                  #        L       CALL
047855,000137:                                                                                                  #        L+1             MOONMX
047856,000138: 
047857,000139:                                                                                                  #  SUBROUTINES USED
047858,000140:                                                                                                  #        NEWANGLE
047859,000141: 
047860,000142:                                                                                                  #  INPUT
047861,000143:                                                                                                  #        6-7D = TIME
047862,000144: 
047863,000145:                                                                                                  #        ITEMS AVAILABLE FROM LAUNCH DATA
047864,000146:                                                                                                  #                BSUBO, BDOT
047865,000147:                                                                                                  #                TIMSUBO, NODIO, NODDOT, FSUBO, FDOT
047866,000148:                                                                                                  #                COSI = COS(I)   B-1
047867,000149:                                                                                                  #                SINI = SIN(I)   B-1
047868,000150:                                                                                                  #                  I IS THE ANGLE BETWEEN THE MEAN LUNAR EQUATORIAL PLANE AND THE
047869,000151:                                                                                                  #                  PLANE OF THE ECLIPTIC (1 DEGREE 32.1 MINUTES)
047870,000152: 
047871,000153:                                                                                                  #  OUTPUT
047872,000154:                                                                                                  #        MMATRIX = 3X3 M MATRIX B-1      (STORED IN VAC AREA)
047873,000155: 
047874,000156: 24,3720           40220        MOONMX             STQ      SETPD                                 
047875,000157: 24,3721           00051                                    EARTHMXX                              
047876,000158: 24,3722           00011                                    8D                                    
047877,000159: 24,3723           77770                           AXT,1                                          #  B REQUIRES SL 0, SL 5 IN NEWANGLE
047878,000160: 24,3724           00005                                    5                                     
047879,000161: 24,3725           65345                           DLOAD    PDDL                                  #  PD 10D        8-9D=BSUBO
047880,000162: 24,3726           14017                                    BSUBO                                 #                10-11D=BDOT
047881,000163: 24,3727           14011                                    BDOT                                  
047882,000164: 24,3730           45006                           PUSH     CALL                                  #  PD 12D
047883,000165: 24,3731           53743                                    NEWANGLE                              #  EXIT WITH PD 8D AND MPAC= B   REVS B0
047884,000166: 24,3732           71406                           PUSH     COS                                   #  PD 10D
047885,000167: 24,3733           14041                           STODL    COB                                   #  PD 8D         COS(B) B-1
047886,000168: 24,3734           77756                           SIN                                            #                SIN(B) B-1
047887,000169: 24,3735           14043                           STODL    SOB                                   #  SETUP INPUT FOR NEWANGLE
047888,000170: 24,3736           14015                                    FSUBO                                 #                        8-9D=FSUBO
047889,000171: 24,3737           41525                           PDDL     PUSH                                  #  PD 10D THEN 12D       10-11D=FDOT
047890,000172: 24,3740           14007                                    FDOT                                  
047891,000173: 24,3741           45170                           AXT,1    CALL                                  #  F REQUIRES SL 1, SL 6 IN NEWANGLE
047892,000174: 24,3742           00004                                    4                                     
047893,000175: 24,3743           53743                                    NEWANGLE                              #  EXIT WITH PD 8D AND MPAC= F REVS B0
047894,000176: 24,3744           14027                           STODL    AVECTR     +2                         #  SAVE F TEMP
047895,000177: 24,3745           14013                                    NODIO                                 #                        8-9D=NODIO
047896,000178: 24,3746           41525                           PDDL     PUSH                                  #  PD 10D THEN 12D       10-11D=NODDOT
047897,000179: 24,3747           14005                                    NODDOT                                #                        MPAC=T
047898,000180: 24,3750           45170                           AXT,1    CALL                                  #  NODE REQUIRES SL 0, SL 5 IN NEWANGLE
047899,000181: 24,3751           00005                                    5                                     
047900,000182: 24,3752           53743                                    NEWANGLE                              #  EXIT WITH PD 8D AND MPAC= NODI REVS B0

Page 1144

047902,000184: 24,3753           71406                           PUSH     COS                                   #  PD 10D        8-9D= NODI REVS B0
047903,000185: 24,3754           77606                           PUSH                                           #  PD 12D        10-11D= COS(NODI) B-1
047904,000186: 24,3755           00025                           STORE    AVECTR                                
047905,000187: 24,3756           76405                           DMP      SL1R                                  
047906,000188: 24,3757           00041                                    COB                                   #                         COS(NODI) B-1
047907,000189: 24,3760           14035                           STODL    BVECTR     +2                         #  PD 10D  20-25D=AVECTR= COB*SIN(NODI)
047908,000190: 24,3761           76405                           DMP      SL1R                                  #                         SOB*SIN(NODI)
047909,000191: 24,3762           00043                                    SOB                                   
047910,000192: 24,3763           14037                           STODL    BVECTR     +4                         #  PD 8D
047911,000193: 24,3764           41556                           SIN      PUSH                                  #  PD 10D                -SIN(NODI) B-1
047912,000194: 24,3765           77676                           DCOMP                                          #          26-31D=BVECTR= COB*COS(NODI)
047913,000195: 24,3766           14033                           STODL    BVECTR                                #  PD 8D                  SOB*COS(NODI)
047914,000196: 24,3767           00027                                    AVECTR     +2                         #  MOVE F FROM TEMP LOC. TO 504F
047915,000197: 24,3770           14007                           STODL    504F                                  
047916,000198: 24,3771           76405                           DMP      SL1R                                  
047917,000199: 24,3772           00041                                    COB                                   
047918,000200: 24,3773           77650                           GOTO                                           
047919,000201: 24,3774           53671                                    MOONMXA                               
047920,000202: 
047921,000203: 25,3671                                           BANK     25                                    
047922,000204: 25,2000                                           SETLOC   PLANTIN3                              
047923,000205: 25,2000                                           BANK                                           
047924,000206: 25,3671                                           COUNT*   $$/LUROT                              
047925,000207: 
047926,000208: 25,3671           14027        MOONMXA            STODL    AVECTR     +2                         
047927,000209: 25,3672           00011                                    SINNODI                               #  8-9D=SIN(NODI) B-1
047928,000210: 25,3673           76405                           DMP      SL1R                                  
047929,000211: 25,3674           00043                                    SOB                                   
047930,000212: 25,3675           14031                           STODL    AVECTR     +4                         #                         0
047931,000213: 25,3676           06522                                    HI6ZEROS                              #        8-13D= CVECTR= -SOB  B-1
047932,000214: 25,3677           57525                           PDDL     DCOMP                                 #  PD 10D                COB
047933,000215: 25,3700           00043                                    SOB                                   
047934,000216: 25,3701           63325                           PDDL     PDVL                                  #  PD 12D THEN PD 14D
047935,000217: 25,3702           00041                                    COB                                   
047936,000218: 25,3703           00033                                    BVECTR                                
047937,000219: 25,3704           63361                           VXSC     PDVL                                  #  PD 20D        BVECTR*SINI  B-2
047938,000220: 25,3705           14003                                    SINI                                  
047939,000221: 25,3706           00011                                    CVECTR                                
047940,000222: 25,3707           53361                           VXSC     VAD                                   #  PD 14D        CVECTR*COSI  B-2
047941,000223: 25,3710           14001                                    COSI                                  
047942,000224: 25,3711           77772                           VSL1                                           
047943,000225: 25,3712           24041                           STOVL    MMATRIX    +12D                       #  PD 8D  M2=BVECTR*SINI+CVECTR*COSI  B-1
047944,000226: 25,3713           63361                           VXSC     PDVL                                  #  PD 14D
047945,000227: 25,3714           14003                                    SINI                                  #                CVECTR*SINI  B-2
047946,000228: 25,3715           00033                                    BVECTR                                
047947,000229: 25,3716           52361                           VXSC     VSU                                   #  PD 8D         BVECTR*COSI  B-2
047948,000230: 25,3717           14001                                    COSI                                  
047949,000231: 25,3720           65372                           VSL1     PDDL                                  #  PD 14D
047950,000232: 25,3721           00007                                    504F                                  #  8-13D=DVECTR=BVECTR*COSI-CVECTR*SINI  B-1
047951,000233: 25,3722           74346                           COS      VXSC                                  

Page 1145

047953,000235: 25,3723           00011                                    DVECTR                                
047954,000236: 25,3724           73525                           PDDL     SIN                                   #  PD 20D  14-19D= DVECTR*COSF  B-2
047955,000237: 25,3725           00007                                    504F                                  
047956,000238: 25,3726           52361                           VXSC     VSU                                   #  PD 14D          AVECTR*SINF  B-2
047957,000239: 25,3727           00025                                    AVECTR                                
047958,000240: 25,3730           77772                           VSL1                                           
047959,000241: 25,3731           14033                           STODL    MMATRIX    +6                         #  M1= AVECTR*SINF-DVECTR*COSF  B-1
047960,000242: 25,3732           00007                                    504F                                  
047961,000243: 25,3733           74356                           SIN      VXSC                                  #  PD 8D
047962,000244: 25,3734           71525                           PDDL     COS                                   #  PD 14D  8-13D=DVECTR*SINF B-2
047963,000245: 25,3735           00007                                    504F                                  
047964,000246: 25,3736           53361                           VXSC     VAD                                   #  PD 8D         AVECTR*COSF B-2
047965,000247: 25,3737           00025                                    AVECTR                                
047966,000248: 25,3740           57572                           VSL1     VCOMP                                 
047967,000249: 25,3741           34025                           STCALL   MMATRIX                               #  M0= -(AVECTR*COSF+DVECTR*SINF)  B-1
047968,000250: 25,3742           00051                                    EARTHMXX                              
047969,000251: 
047970,000252:                                                                                                  #  COMPUTE X=X0+(XDOT)(T+T0)
047971,000253:                                                                                                  #  8-9D= XO (REVS B-0), PUSHLOC SET AT 12D
047972,000254:                                                                                                  #  10-11D=XDOT (REVS/CSEC) SCALED B+23 FOR WEARTH,B+28 FOR NODDOT AND BDOT
047973,000255:                                                                                                  #                        AND B+27 FOR FDOT
047974,000256:                                                                                                  #   X1=DIFFERENCE IN 23 AND SCALING OF XDOT, =0 FOR WEARTH, 5 FOR NODDOT AND
047975,000257:                                                                                                  #                                        BDOT AND 4 FOR FDOT
047976,000258:                                                                                                  #  6-7D=T (CSEC B-28), TIMSUBO= (CSEC B-42 TRIPLE PREC.)
047977,000259: 
047978,000260: 25,3743           54345        NEWANGLE           DLOAD    SR                                    #  ENTER PD 12D
047979,000261: 25,3744           00007                                    6D                                    
047980,000262: 25,3745           20617                                    14D                                   
047981,000263: 25,3746           72371                           TAD      TLOAD                                 #  CHANGE MODE TO TP
047982,000264: 25,3747           01707                                    TIMSUBO                               
047983,000265: 25,3750           00155                                    MPAC                                  
047984,000266: 25,3751           14017                           STODL    TIMSUBM                               #  T+T0 CSEC B-42
047985,000267: 25,3752           00020                                    TIMSUBM    +1                         
047986,000268: 25,3753           77605                           DMP                                            #  PD 10D        MULT BY XDOT IN 10-11D
047987,000269: 25,3754           43257                           SL*      DAD                                   #  PD 8D         ADD XO IN 8-9D AFTER SHIFTING
047988,000270: 25,3755           20206                                    5,1                                   #                SUCH THAT SCALING IS B-0
047989,000271: 25,3756           67206                           PUSH     SLOAD                                 #  PD 10D  SAVE PARTIAL (X0+XDOT*T) IN 8-9D
047990,000272: 25,3757           00017                                    TIMSUBM                               
047991,000273: 25,3760           41261                           SL       DMP                                   
047992,000274: 25,3761           20212                                    9D                                    
047993,000275: 25,3762           00013                                    10D                                   #  XDOT
047994,000276: 25,3763           43257                           SL*      DAD                                   #  PD 8D         SHIFT SUCH THAT THIS PART OF X
047995,000277: 25,3764           20213                                    10D,1                                 #                IS SCALED REVS/CSEC B-0
047996,000278: 25,3765           77600                           BOV                                            #  TURN OFF OVERFLOW IF SET BY SHIFT
047997,000279: 25,3766           53767                                    +1                                    #  INSTRUCTION BEFORE EXITING
047998,000280: 25,3767           77616                           RVQ                                            #  MPAC=X= X0+(XDOT)(T+T0)  REVS B0
047999,000281: 

Page 1146

048001,000283:                                                                                                  #  ..... EARTHMX SUBROUTINE .....
048002,000284:                                                                                                  #  SUBROUTINE TO COMPUTE THE TRANSFORMATION MATRIX M FOR THE EARTH
048003,000285: 
048004,000286:                                                                                                  #  CALLING SEQUENCE
048005,000287:                                                                                                  #        L       CALL
048006,000288:                                                                                                  #        L+1             EARTHMX
048007,000289: 
048008,000290:                                                                                                  #  SUBROUTINES USED
048009,000291:                                                                                                  #        NEWANGLE
048010,000292: 
048011,000293:                                                                                                  #  INPUT
048012,000294:                                                                                                  #        INPUT AVAILABLE FROM LAUNCH DATA        AZO  REVS B-0
048013,000295:                                                                                                  #                                                TEPHEM  CSEC B-42
048014,000296:                                                                                                  #        6-7D= TIME CSEC B-28
048015,000297: 
048016,000298:                                                                                                  #  OUTPUT
048017,000299:                                                                                                  #        MMATRIX= 3X3 M MATRIX B-1       (STORED IN VAC AREA)
048018,000300: 
048019,000301: 26,3743                                           BANK     26                                    
048020,000302: 26,2000                                           SETLOC   PLANTIN1                              
048021,000303: 26,2000                                           BANK                                           
048022,000304: 26,3743                                           COUNT*   $$/LUROT                              
048023,000305: 
048024,000306: 26,3743           40220        EARTHMX            STQ      SETPD                                 #  SET 8-9D=AZO
048025,000307: 26,3744           00051                                    EARTHMXX                              
048026,000308: 26,3745           00011                                    8D                                    #  10-11D=WEARTH
048027,000309: 26,3746           77770                           AXT,1                                          #  FOR SL 5, AND SL 10 IN NEWANGLE
048028,000310: 26,3747           00000                                    0                                     
048029,000311: 26,3750           65345                           DLOAD    PDDL                                  #  LEAVING PD SET AT 12D FOR NEWANGLE
048030,000312: 26,3751           01712                                    AZO                                   
048031,000313: 26,3752           14021                                    WEARTH                                
048032,000314: 26,3753           45006                           PUSH     CALL                                  
048033,000315: 26,3754           53743                                    NEWANGLE                              
048034,000316: 26,3755           41401                           SETPD    PUSH                                  #  18-19D=504AZ
048035,000317: 26,3756           00023                                    18D                                   #                         COS(AZ)   SIN(AZ)     0
048036,000318: 26,3757           65346                           COS      PDDL                                  #  20-37D=  MMATRIX=     -SIN(AZ)   COS(AZ)     0    B-1
048037,000319: 26,3760           00023                                    504AZ                                 #                            0         0        1
048038,000320: 26,3761           65356                           SIN      PDDL                                  
048039,000321: 26,3762           06522                                    HI6ZEROS                              
048040,000322: 26,3763           73525                           PDDL     SIN                                   
048041,000323: 26,3764           00023                                    504AZ                                 
048042,000324: 26,3765           65276                           DCOMP    PDDL                                  
048043,000325: 26,3766           00023                                    504AZ                                 
048044,000326: 26,3767           63346                           COS      PDVL                                  
048045,000327: 26,3770           06522                                    HI6ZEROS                              
048046,000328: 26,3771           41525                           PDDL     PUSH                                  
048047,000329: 26,3772           06520                                    HIDPHALF                              
048048,000330: 26,3773           77650                           GOTO                                           
048049,000331: 26,3774           00051                                    EARTHMXX                              
048050,000332: 

Page 1147

048052,000334:                                                                                                  #  ..... EARTHL SUBROUTINE .....
048053,000335:                                                                                                  #  SUBROUTINE TO COMPUTE L VECTOR FOR EARTH
048054,000336: 
048055,000337:                                                                                                  #  CALLING SEQUENCE
048056,000338:                                                                                                  #        L       CALL
048057,000339:                                                                                                  #        L+1             EARTHL
048058,000340: 
048059,000341:                                                                                                  #  INPUT
048060,000342:                                                                                                  #        AXO,AYO SET AT LAUNCH TIME WITH AYO IMMEDIATELY FOLLOWING AXO IN CORE
048061,000343: 
048062,000344:                                                                                                  #  OUTPUT
048063,000345:                                                                                                  #                -AX
048064,000346:                                                                                                  #        MPAC=   -AY     RADIANS B-0
048065,000347:                                                                                                  #                  0
048066,000348: 
048067,000349: 06,3753                                           BANK     06                                    
048068,000350: 06,2000                                           SETLOC   EARTHLOC                              
048069,000351: 06,2000                                           BANK                                           
048070,000352: 06,3753                                           COUNT*   $$/LUROT                              
048071,000353: 
048072,000354: 06,3753           57545        EARTHL             DLOAD    DCOMP                                 
048073,000355: 06,3754           01716                                    AXO                                   
048074,000356: 06,3755           14017                           STODL    504LPL                                
048075,000357: 06,3756           01714                                    -AYO                                  
048076,000358: 06,3757           14021                           STODL    504LPL     +2                         
048077,000359: 06,3760           24007                                    LO6ZEROS                              
048078,000360: 06,3761           24023                           STOVL    504LPL     +4                         
048079,000361: 06,3762           00017                                    504LPL                                
048080,000362: 06,3763           77616                           RVQ                                            
048081,000363: 

Page 1148

048083,000365:                                                                                                  #  CONSTANTS AND ERASABLE ASSIGNMENTS
048084,000366: 
048085,000367: 06,3764  12,2004               1B1                =        DP1/2                                 #  1  SCALED B-1
048086,000368: 06,3764  0000050               RPREXIT            =        S1                                    #  R-TO-RP AND RP-TO-R SUBR EXIT
048087,000369: 06,3764  0000051               EARTHMXX           =        S2                                    #  EARTHMX, MOONMX SUBR. EXITS
048088,000370: 06,3764                        504RPR             =        0D                                    #  6 REGS        R OR RP VECTOR
048089,000371: 06,3764                        SINNODI            =        8D                                    #  2             SIN(NODI)
048090,000372: 06,3764                        DVECTR             =        8D                                    #  6             D VECTOR MOON
048091,000373: 06,3764                        CVECTR             =        8D                                    #  6             C VECTR MOON
048092,000374: 06,3764                        504AZ              =        18D                                   #  2             AZ
048093,000375: 06,3764                        TIMSUBM            =        14D                                   #  3             TIME SUB M (MOON) T+T0 IN GETAZ
048094,000376: 06,3764                        504LPL             =        14D                                   #  6             L OR LP VECTOR
048095,000377: 06,3764                        AVECTR             =        20D                                   #  6             A VECTOR (MOON)
048096,000378: 06,3764                        BVECTR             =        26D                                   #  6             B VECTOR (MOON)
048097,000379: 06,3764                        MMATRIX            =        20D                                   #  18            M MATRIX
048098,000380: 06,3764                        COB                =        32D                                   #  2             COS(B) B-1
048099,000381: 06,3764                        SOB                =        34D                                   #  2             SIN(B) B-1
048100,000382: 06,3764                        504F               =        6D                                    #  2             F(MOON)
048101,000383: 

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