Source Code
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These source-code files are part of a reconstructed copy of Artemis 071, the
first release of the Apollo 15 through 17 Command Module (CM) Apollo Guidance
Computer (AGC) software.
The reconstruction began with source code of Artemis 072 previously transcribed
from a digitized copy of that program. The code was then updated by undoing
changes between the two versions. The reconstruction was verified by matching
memory-bank checksums to those listed in drawing 2021154-. Note that page
numbers in the reconstructed code match those on the Artemis 072 printout,
although the changed code would likely have changed page numbers for a real
Artemis 071 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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037137,000002: ## Copyright: Public domain.
037138,000003: ## Filename: ENTRY_LEXICON.agc
037139,000004: ## Purpose: A section of Artemis revision 071.
037140,000005: ## It is part of the reconstructed source code for the first
037141,000006: ## release of the flight software for the Command Module's
037142,000007: ## (CM) Apollo Guidance Computer (AGC) for Apollo 15 through
037143,000008: ## 17. The code has been recreated from a copy of Artemis 072.
037144,000009: ## It has been adapted such that the resulting bugger words
037145,000010: ## exactly match those specified for Artemis 071 in NASA
037146,000011: ## drawing 2021154-, which gives relatively high confidence
037147,000012: ## that the reconstruction is correct.
037148,000013: ## Reference: 842
037149,000014: ## Assembler: yaYUL
037150,000015: ## Contact: Ron Burkey <info@sandroid.org>.
037151,000016: ## Website: www.ibiblio.org/apollo/index.html
037152,000017: ## Mod history: 2019-08-14 MAS Created from Artemis 072.
037153,000018:
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Page 842
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037155,000020:
037156,000021: # VARIABLE DESCRIPTION MAXIMUM VALUE * COMPUTER NAME
037157,000022: # -------- ----------- ------- ----- -------- ----
037158,000023: # -
037159,000024: # URT0 INITIAL TARGET VECTOR 2 (UNIT VECTOR) = RTINIT
037160,000025: # -
037161,000026: # UZ UNIT VECTOR NORTH 1 = UNITW
037162,000027: # -
037163,000028: # V VELOCITY VECTOR 2 VSAT = VEL
037164,000029: # -
037165,000030: # R POSITION VECTOR 2 EXP 29 METERS = RN
037166,000031: # -
037167,000032: # VI INERTIAL VELOCITY 128 M/CENTISEC = VN
037168,000033: # -
037169,000034: # RTE VECTOR EAST AT INITIAL TARGET 2 = RTEAST
037170,000035: # -
037171,000036: # UTR NORMAL TO RTE AND UZ 2 = RTNORM
037172,000037: # -
037173,000038: # URT TARGET VECTOR 2 = RT
037174,000039: # -
037175,000040: # UNI UNIT NORMAL TO TRAJECTORY PLANE 2
037176,000041: # -
037177,000042: # DELV INTEGRATED ACCEL. FROM PIPAS 5.85 16384 CM/S
037178,000043: # -
037179,000044: # G GRAVITY VECTOR 128 M/CENTISEC = GDT/2
037180,000045:
037181,000046: # A0 INITIAL DRAG FOR UPCONTRL 805 FPSS FPSS=FT/SEC/SEC
037182,000047: # AHOOKDV TERM IN GAMMAL CALC. = AHOOK DVL 8
037183,000048: # A1 DRAG VALUE IN FACTOR CALCULATION 805 FPSS
037184,000049: # ALP CONST FOR UPCONTRL 1
037185,000050: # ASKEP KEPLER RANGE 21600 NM NM = NAUTICAL MILE
037186,000051: # ASP1 FINAL PHASE RANGE 21600 NM
037187,000052: # ASPUP UP-RANGE 21600 NM
037188,000053: # ASP3 GAMMA CORRECTION 21600 NM
037189,000054: # ASPDWN RANGE DOWN TO PULL-UP 21600 NM
037190,000055: # ASP PREDICTED RANGE 21600 NM NOT STORED
037191,000056: # COSG COSINE(GAMMAL) 2 = COSG/2
037192,000057: # C/D0 RECIPROCAL DRAG, -4/D0 B-8 64/FPSS AGC ONLY
037193,000058: # D TOTAL ACCELERATION 805 FPSS
037194,000059: # D0 CONTROLLED CONSTANT D 805 FPSS
037195,000060: # DHOOK TERM IN GAMMAL COMPUTATION 805 FPSS
037196,000061: # DIFF THETNM-ASP (RANGE DIFFERENCE) 21600 NM
037197,000062: # DIFFOLD PREVIOUS VALUE OF DIFF 21600 NM
037198,000063: # DLEWD CHANGE IN LEWD 1
037199,000064: # DR REFERENCE DRAG FOR DOWNCONTROL 805 FPSS NOT STORED
037200,000065: # DREFR( ) REFERENCE DRAG (FINAL PHASE TABLE) 805 FPSS NOT SAVED
037201,000066: # DVL VS1-VL 2 VSAT
037202,000067: # E ECCENTRICITY 4 NOT STORED
037203,000068: # F1( ) DRANGE/D DRAG (FINAL PHASE TABLE) 2700/805 = FX +5
037204,000069: # F2( ) DRANGE/D RDOT (FINAL PHASE TABLE) 2700/2VS NM/FPS = FX +4 /8
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Page 843
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037206,000071: # F3( ) DRANGE/D (L/D) (FINAL PHASE TABLE) 2700 NM = FX
037207,000072: # * MAXIMUM VALUE DENOTES UNSCALED
037208,000073: # VARIABLE VALUE WHEN SCALED
037209,000074: # FIGURE 7.0-2 COMPUTER VARIABLES VARIABLE HAS MAXIMUM VALUE OF ONE.
037210,000075:
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Page 844
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037212,000077:
037213,000078: # VARIABLE DESCRIPTION MAXIMUM VALUE COMPUTER NAME
037214,000079: # -------- ----------- ------- ----- -------- ----
037215,000080:
037216,000081: # FACT1 CONST FOR UPCONTRL 2 VSAT
037217,000082: # FACT2 CONST FOR UPCONTRL 1/805 FPSS
037218,000083: # FACTOR USED IN UPCONTRL 1
037219,000084: # GAMMAL FLIGHT PATH ANGLE AT VL 1 RADIAN
037220,000085: # GAMMAL1 SIMPLE FORM OF GAMMAL 1 RADIAN
037221,000086: # HEADSUP INDICATOR FOR INITIAL ROLL 1
037222,000087: # KA DRAG TO LIFT UP IF DOWN 805 FPSS = KAT
037223,000088: # KLAT LATERAL SWITCH GAIN 1 (NOM = .0125)
037224,000089: # K2ROLL INDICATOR FOR ROLL SWITCH
037225,000090: # LAD MAX L/D (MIN ACTUAL VEHICLE L/D) 1
037226,000091: # LADPAD NOMINAL VEHICLE L/D, SP PAD LOAD 1 (NOM = 0.3)
037227,000092: # LATANG LATERAL RANGE 4 RADIANS
037228,000093: # LAT(SPL) GEODETIC LATITUDE OF TARGET 1 REVOLUTION
037229,000094: # LNG(SPL) LONGITUDE OF TARGET 1 REVOLUTION
037230,000095: # LEQ EXCESS C.F. OVER GRAV=(VSQ-1)GS 128.8 FPSS
037231,000096: # LEWD UPCONTROL REFERENCE L/D 1
037232,000097: # LOD FINAL PHASE L/D 1 (NOM = 0.18)
037233,000098: # LODPAD FINAL PHASE L/D, SP PAD LOAD 1
037234,000099: # L/D DESIRED LIFT TO DRAG RATIO 1
037235,000100: # (VERTICAL PLANE)
037236,000101: # L/D1 TEMP STORAGE FOR L/D IN LATERAL 1
037237,000102: # L/DCMINR LAD COS(15DEG) 1 (NOM = 0.2895)
037238,000103: # PREDANGL PREDICTED RANGE (FINAL PHASE) 2700 NM = PREDANG
037239,000104: # Q2 FINAL PHASE RANGE 21600 NM
037240,000105: # Q7 MINIMUM DRAG FOR UPCONTROL 805FPSS
037241,000106: # RDOT ALTITUDE RATE 2 VSAT
037242,000107: # RDOTREF REFERENCE RDOT FOR UPCONTROL 2 VSAT
037243,000108: # RDOTREF( ) REFERENCE RDOT (FINAL PHASE TABLE) 2 VSAT = FX +3 /8
037244,000109: # RDTR REFERENCE RDOT FOR DOWNCONT 2 VSAT NOT SAVED
037245,000110: # ROLLC ROLL COMMAND 1 REVOLUTION
037246,000111: # RTOGO( ) RANGE TO GO (FINAL PHASE TABLE) 2700 NM = FX +2
037247,000112: # SL SINE OF LATITUDE 1 NOT SAVED
037248,000113: # T TIME B 28 CENTISEC = PIPTIME-TIME/RTO
037249,000114: # THETA DESIRED RANGE (RADIANS) 2 PI RADIANS = THETAH
037250,000115: # THETNM DESIRED RANGE (NM) 21600 NM NON EXISTENT
037251,000116: # V VELOCITY MAGNITUDE 2 VSAT
037252,000117: # V1 INITIAL VELOCITY FOR UPCONTROL 2 VSAT
037253,000118: # VL EXIT VELOCITY FOR UPCONTROL 2 VSAT
037254,000119: # VMAGI INERTIAL VELOCITY MAGNITUDE,|VI| 128 M/CENTISEC
037255,000120: # VREF REFERENCE VELOCITY FOR UPCONTROL 2 VSAT
037256,000121: # VREF( ) REFERENCE V (FINAL PHASE TABLE) 2 VSAT NOT STORED
037257,000122: # VS1 VSAT OR V1, WHICHEVER IS SMALLER 2 VSAT
037258,000123: # 2 2
037259,000124: # VBARS VL /VSAT 4
037260,000125: # 2 2
037261,000126: # VSQ NORMALISED VEL. SQUARED = V /VSAT 4 = VSQUARE
037262,000127:
037263,000128: # WT EARTH RATE TIMES TIME 1 REVOLUTION NOT SAVED
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Page 845
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037265,000130: # = WIE (DTEAROT)
037266,000131: # X INTERMEDIATE VARIABLE IN G-LIMITER 2 VSAT NOT SAVED
037267,000132: # Y LATERAL MISS LIMIT 4 RADIANS NOT SAVED
037268,000133:
037269,000134: # FIGURE 7.0-2A COMPUTER VARIABLES (CONTINUED)
037270,000135:
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Page 846
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037272,000137: # EXTRA COMPUTER ERASABLE LOCATIONS NOT SHOWN ON FLOW CHARTS
037273,000138: # -----------------------------------------------------------
037274,000139:
037275,000140: # VARIABLE DESCRIPTION MAXIMUM VALUE
037276,000141: # -------- ----------- ------- -----
037277,000142:
037278,000143: # GOTOADDR ADDRESS SELECTED BY SEQUENCER
037279,000144: # XPIPBUF BUFFER TO STORE X PIPA COUNTS
037280,000145: # YPIPBUF BUFFER TO STORE Y PIPA COUNTS
037281,000146: # ZPIPBUF BUFFER TO STORE Z PIPA COUNTS
037282,000147: # PIPCTR COUNTS PASSES THRU PIPA READ ROUTINE
037283,000148: # JJ INDEX IN FINAL PHASE TABLE LOOK-UP
037284,000149: # MM INDEX IN FINAL PHASE TABLE LOOK-UP
037285,000150: # GRAD INTERPOLATION FACTOR IN FINAL PHASE
037286,000151: # FX DRANGE/D L/D = F3 2700 NM
037287,000152: # FX + 1 AREF 805 FPSS
037288,000153: # FX + 2 RTOGO 2700 NM
037289,000154: # FX + 3 RDOTREF VSAT/4
037290,000155: # FX + 4 DRANGE/D RDOT = F2 21600/2VS NM/FPS
037291,000156: # FX + 5 DRANGE/D DRAG = F1 2700/805 NM/FPSS
037292,000157: # TEM1B TEMPORARY LOCATION
037293,000158: # TIME/RTO TIME OF INITIAL TARGET RTINIT B 28 CENTISEC
037294,000159: # DTEAROT EST TIME BETWEEN RTINIT AND RT B 28 CENTISEC
037295,000160: # -
037296,000161: # UNITV UNIT V VECTOR 2
037297,000162: # -
037298,000163: # UNITR UNIT R VECTOR 2
037299,000164: # -
037300,000165: # -VREL NEGATIVE VELOCITY REL TO ATMOSP 2 VSAT
037301,000166:
037302,000167: # COMPUTER SWITCHES INITIAL STATE CM/FLAGS = STATE +6
037303,000168: # -------- -------- ------------- -------------------
037304,000169:
037305,000170: # ENTRYDSP DO ENTRY DISPLAY, IF SET NON-BRANCH (1) 92D, BIT13
037306,000171: # GONEPAST INDICATES OVERSHOOT OF TARGET BRANCH (1) 95D, BIT10
037307,000172: # RELVELSW RELATIVE VELOCITY SWITCH NON-BRANCH (0) 96D, BIT 9
037308,000173: # EGSW FINAL PHASE SWITCH NON-BRANCH (0) 97D, BIT 8
037309,000174: # NOSWITCH INHIBIT LATERAL SWITCH NON-BRANCH (0) 98D, BIT 7
037310,000175: # HIND INDICATES ITERATION IN HUNTEST NON-BRANCH (0) 99D, BIT 6
037311,000176: # INRLSW INDICATES INIT ROLL ATTITUDE SET NON-BRANCH (0) 100D, BIT 5
037312,000177: # LATSW INHIBIT DOWNLIFT SWITCH IF NOT SET BRANCH (1) 101D, BIT 4
037313,000178: # .05GSW INDICATES DRAG EXCEEDS .05 GS NON-BRANCH (0) 102D, BIT 3
037314,000179:
037315,000180: # GONEBY INDICATES GONE PAST TARGET (SET) SELF-INITIALIZING 112D, BIT 8 IN STATE +7
037316,000181:
037317,000182: # FIGURE 7.0-2B COMPUTER VARIABLES (CONTINUED)
037318,000183:
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Page 847
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037320,000185: # BODY ATTITUDE QUANTITIES (CM/POSE)
037321,000186: # -----------------------------------
037322,000187:
037323,000188: # VARIABLE DECRIPTION MAXIMUM VALUE
037324,000189: # -------- ---------- ------- -----
037325,000190: # -
037326,000191: # -VREL NEGATIVE VELOCITY REL TO ATMOS. 2 VSAT
037327,000192: # - -
037328,000193: # OLDUYA USED FOR UYA BELOW 1000 FPS 2
037329,000194:
037330,000195: # -
037331,000196: # UXA/2 UNIT VECTOR TRIAD 2
037332,000197: # -
037333,000198: # UYA/2 BASED ON 2
037334,000199: # -
037335,000200: # UZA/2 THE TRAJECTORY. 2
037336,000201:
037337,000202: # -
037338,000203: # UBX/2 UNIT VECTOR 2
037339,000204: # -
037340,000205: # UBY/2 BODY TRIAD 2
037341,000206: # -
037342,000207: # UBZ/2 FOR CM. 2
037343,000208:
037344,000209: # FIGURE 7.0-2C COMPUTER VARIABLES (CONTINUED)
037345,000210:
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Page 848
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037347,000212: # DISPLAY QUANTITIES (FOR USAGE,SEE SECTION 4: P 61 THROUGH P 67)
037348,000213: # ------------------
037349,000214:
037350,000215: # THIS TABLE PROVIDES THE READER WITH DISPLAY QUANTITY INFORMATION. THE VARIABLE NAMES REFLECT
037351,000216: # SECTION 5 USAGE. EXCEPTING IMBEDDED BLANKS, THE SECTION 4 NAMES ARE PARENTHESIZED,IF DIFFERENT.
037352,000217: # SIGN CONVENTIONS ARE FOUND IN SECTION 4. IF THE DISPLAY VARIABLE NAME DIFFERS FROM SECTION 5 USAGE,
037353,000218: # SAY BECAUSE OF SCALE FACTOR, THE ALTERNATE SECTION 5 NAME IS ENCLOSED IN ANGULAR BRACKETS: < >.
037354,000219: # DISPLAY QUANTITY INFORMATION APPEARING ELSEWHERE IN SECTION 5 OTHER THAN IN 5 7 MAY BE FOUND THUS:
037355,000220: # N 60 & N 63 (ALL) FIGURE 6.10-4 IN 5.6.10.3
037356,000221: # N 22 (ALL) FIGURE 6.10-11 IN 5.6.10.6
037357,000222: # N67 (LAT, LONG) FIGURE 5.3-1 IN 5.5.3
037358,000223:
037359,000224: # VARIABLE DESCRIPTION MAXIMUM VALUE DISPLAY NOUNS
037360,000225: # -------- ----------- ------- ----- ------- -----
037361,000226:
037362,000227: # GMAX PREDICTED MAXIMUM ENTRY ACCEL 163.84 GS N 60
037363,000228: # VPRED PREDICTED VELOCITY AT ALTITUDE 128 M/CENTISEC N 60
037364,000229: # 400K FT ABOVE FISCHER RADIUS.
037365,000230: # GAMMAEI PREDICTED GAMMA AT ALTITUDE 1 REVOLUTION N 60
037366,000231: # 400K FT ABOVE FISCHER RADIUS.
037367,000232: # RTGO RANGE ANGLE TO SPLASH (RTOGO) 1 REVOLUTION N 63
037368,000233: # FROM EMSALT FT ABOVE FISCHER
037369,000234: # RADIUS. (IN NM)
037370,000235: # VIO PREDICTED VELOCITY AT ALTITUDE 128 M/CENTISEC N 63
037371,000236: # EMSALT FT ABOVE FISCHER RADIUS.
037372,000237: # TTE TIME OF FREE FALL (TFE) TO B 28 CENTISEC N 63
037373,000238: # ALTITUDE EMSALT FT ABOVE FISCHER
037374,000239: # RADIUS.
037375,000240: # OGA OUTER GIMBAL ANGLE (OG ROLL) 1 REVOLUTION N 22
037376,000241: # IGA INNER GIMBAL ANGLE (IG PITCH) 1 REVOLUTION N 22
037377,000242: # MGA MIDDLE GIMBAL ANGLE (MG YAW) 1 REVOLUTION N 22
037378,000243: # ALL ABOVE ANGLES FOR HYPERSONIC TRIM
037379,000244: # D DRAG ACCELERATION (G) 805 FPSS N 64, N 74
037380,000245: # VMAGI INERTIAL VELOCITY MAGNITUDE (VI) 128 M/CENTISEC N 64, N 68, N 74
037381,000246: # ROLLC ROLL COMMAND (BETA) 1 REVOLUTION N 66, N 68, N 69, N 74
037382,000247: # XRNGERR CROSS-RANGE ERROR <LATANG IN NM> 1 REVOLUTION N 66
037383,000248: # DNRNGERR DOWN RANGE ERROR ** 1 REVOLUTION N 66
037384,000249: # <PREDANG - THETAH IN NM>
037385,000250: # ** <DNRNGERR DISPLAYS 9999.9 IF GONEPAST =1 IN P 67>
037386,000251: # HDOT ALTITUDE RATE <RDOT> 128 M/CENTISEC N 68
037387,000252: # Q7 EXIT DRAG LEVEL (DL) 805 FPSS N 69
037388,000253: # VL EXIT VELOCITY FOR UP-CONTROL 2 VSAT N 69
037389,000254: # RTOGO DESIRED RANGE ANGLE <THETAH> 1 REVOLUTION N 67, N 64
037390,000255: # <-THETAH IF GONEBY =0, THETAH IF GONEBY =1>
037391,000256: # LAT GEODETIC LATITUDE OF VEHICLE 1 REVOLUTION N 67
037392,000257: # LONG LONGITUDE OF VEHICLE 1 REVOLUTION N 67
037393,000258:
037394,000259: # THE FOLLOWING IS A DATA INPUT NOUN (REFER TO SECTION 4,P 61 & P 62)
037395,000260: # HEADSUP INDICATOR FOR INITIAL ROLL 1 REVOLUTION N 61
037396,000261: # LAT(SPL) GEODETIC LATITUDE OF TARGET 1 REVOLUTION N 61
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Page 849
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037398,000263: # (IMPACT LAT)
037399,000264: # LNG(SPL) LONGITUDE OF TARGET (IMPACT LONG) 1 REVOLUTION N 61
037400,000265:
037401,000266: # FIGURE 7.0-2D COMPUTER VARIABLES (CONTINUED)
037402,000267:
037403,000268:
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Page 850
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037405,000270: # CONSTANTS AND GAINS VALUE
037406,000271: # ------------------- -----
037407,000272:
037408,000273: # C1 FACTOR IN ALP COMPUTATION 1.25
037409,000274: # C16 CONSTD GAIN ON DRAG 0.01
037410,000275: # C17 CONSTD GAIN ON RDOT 0.002
037411,000276: # C18 BIAS VEL. FOR FINAL PHASE START 500 FPS
037412,000277: # C20 MAX DRAG FOR DOWN-LIFT 210 FPSS
037413,000278: # C21 DRAG FOR NO LATERAL SWITCH 140 FPSS
037414,000279: # CHOOK FACTOR IN AHOOK COMPUTATION 0.25
037415,000280: # CH1 FACTOR IN GAMMAL COMPUTATION 1.0
037416,000281: # COS15 COS( 15 DEG) 0.965
037417,000282: # DLEWD0 INITIAL VARIATION IN LEWD -0.05
037418,000283: # DT COMPUTATION CYCLE TIME INTERVAL 2 SEC.
037419,000284: # GMAX MAXIMUM ACCELERATION 257.6 FPSS (8 G-S)
037420,000285: # KA1 FACTOR IN KA CALC 1.3 GS
037421,000286: # KA2 FACTOR IN KA CALC 0.2 GS
037422,000287: # KA3 FACTOR IN D0 CALC 90 FPSS
037423,000288: # KA4 FACTOR IN D0 CALC 40 FPSS
037424,000289: # KB1 OPTIMIZED UPCONTROL GAIN 2.5
037425,000290: # KB2 OPTIMIZED UPCONTROL GAIN 0.0025
037426,000291: # KDMIN INCREMENT ON Q7F TO DETECT END OF KEPLER PHASE 0.5 FPSS
037427,000292: # KTETA TIME OF FLIGHT CONSTANT 1000
037428,000293: # KLAT1 FACTOR IN KLAT CALC 1/24
037429,000294: # K44 GAIN USED IN INITIAL ROLL SECTION 19749550 FPS
037430,000295: # LATBIAS LATERAL SWITCH BIAS TERM 0.41252961 NM
037431,000296: # LEWD1 NOMINAL UPCONTROL L/D 0.15
037432,000297: # POINT1 FACTOR TO REDUCE UPCONTROL GAIN 0.1
037433,000298: # Q3 FINAL PHASE DRANGE/D V 0.07 NM/FPS
037434,000299: # Q5 FINAL PHASE DRANGE/ D GAMMA 7050 NM/RAD
037435,000300: # Q6 FINAL PHASE INITIAL FLIGHT PATH ANGLE 0.0349 RAD
037436,000301: # Q7F MIN DRAG FOR UPCONTROL 6 FPSS
037437,000302: # Q7MIN MIN VALUE FOR Q7 IN FACTOR CALCULATION 805 FPSS (DISABLE FACTOR)
037438,000303: # Q19 FACTOR IN GAMMAL1 CALCULATION 0.5
037439,000304: # Q21 FACTOR IN Q2 CALCULATION. 3500 NM
037440,000305: # Q22 FACTOR IN Q2 CALCULATION. -1992 NM
037441,000306: # VFINAL1 VELOCITY TO START FINAL PHASE ON INITIAL ENTRY 27000 FPS
037442,000307: # VFINAL FACTOR IN INITIAL UP-DOWN CALC 26600 FPS
037443,000308: # VLMIN MINIMUM VL 18000 FPS
037444,000309: # VMIN VELOCITY TO SWITCH TO RELATIVE VEL VSAT/2
037445,000310: # VRCONTRL RDOT TO START INTO HUNTEST 700 FPS
037446,000311: # VRCONT = COMPUTER NAME
037447,000312: # 25NM TOLERANCE TO STOP RANGE ITERATION 25 NM
037448,000313: # VQUIT VELOCITY TO STOP STEERING 1000 FPS
037449,000314:
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Page 851
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037451,000316: # CONVERSION FACTORS AND SCALING CONSTANTS
037452,000317: # ---------- ------- --- ------- ---------
037453,000318:
037454,000319: # ATK ANGLE IN RAD TO NM 3437.7468 NM/RAD
037455,000320: # GS NOMINAL G VALUE FOR SCALING 32.2 FPSS
037456,000321: # HS ATMOSPHERE SCALE HEIGHT 28500 FT
037457,000322: # J GRAVITY HARMONIC COEFFICIENT 0.00162346
037458,000323: # KWE EQUATORIAL EARTH RATE 1546.70168 FPS
037459,000324: # MUE EARTH GRAVITATIONAL CONSTANT 3.986032233 E 14 CUBIC M/ SEC SEC
037460,000325: # RE EARTH RADIUS 21202900 FT
037461,000326: # REQ EARTH EQUATORIAL RADIUS 20925738.2 FT
037462,000327: # VSAT SATELLITE VELOCITY AT RE 25766.1973 FPS
037463,000328: # WIE EARTH RATE 0.0000729211505 RAD/SEC
037464,000329:
037465,000330: # FIGURE 7.0-3 CONSTANTS, GAINS AND CONVERSION FACTORS
End of include-file ENTRY_LEXICON.agc. Parent file is MAIN.agc