kjodle/Apollo-11
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Proof CSM_GEOMETRY (#199) (#338)

Browse Source 
🕵️ Proofread #199
This commit is contained in:
Glenn Dwiyatcita 2018-05-25 21:37:33 +02:00 committed by James Harris
parent eaec0f796b
commit 4e0940e275
1 changed files with 46 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
Comanche055/CSM_GEOMETRY.agc
View File

@ -35,13 +35,14 @@
# THIS ROUTINE TAKES THE SHAFT AND TRUNNION ANGLES AS READ BY THE CM OPTICAL SYSTEM AND CONVERTS THEM INTO A UNIT
# VECTOR REFERENCED TO THE NAVIGATION BASE COORDINATE SYSTEM AND COINCIDENT WITH THE SEXTANT LINE OF SIGHT.
#
# THE INPUTS ARE: 1) THE SEXTANT SHAFT AND TRUNNION ANGLES ARE STORED SP IN LOCATIONS 3 AND 5 RESPECTIVELY OF THE
# THE INPUTS ARE 1) THE SEXTANT SHAFT AND TRUNNION ANGLES ARE STORED SP IN LOCATIONS 3 AND 5 RESPECTIVELY OF THE
# MARK VAC AREA. 2) THE COMPLEMENT OF THE BASE ADDRESS OF THE MARK VAC AREA IS STORED SP AT LOCATION X1 OF YOUR
# JOB VAC AREA.
#
# THE OUTPUT IS A HALF-UNIT VECTOR IN NAVIGATION BASE COORDINATES AND STORED AT LOCATION 32D OF THE VAC AREA. THE
# OUTPUT IS ALSO AVAILABLE AT MPAC.
COUNT 23/GEOM
SXTNB SLOAD* RTB # PUSHDOWN 00,02,04,(17D-19D),32D-36D
@ -71,25 +72,26 @@ SXTNB SLOAD* RTB # PUSHDOWN 00,02,04,(17D-19D),32D-36D
STORE 32D
RVQ
SXTLOGIC CAF 10DEGS- # CORRECT FOR 19.775 DEGREE OFFSET
ADS MPAC
CAF QUARTER
TC SHORTMP
TC DANZIG
# Page 286
# CALCSXA COMPUTES THE SEXTANT SHAFT AND TRUNNION ANGLES REQUIRED TO POSITION THE OPTICS SUCH THAT A STAR LINE-
# OF-SIGHT LIES ALONG THE STAR VECTOR. THE ROUTINE TAKES THE GIVEN STAR VECTOR AND EXPRESSES IT AS A VECTOR REF-
# ERENECED TO THE OPTICS COORDINATE SYSTEM. IN ADDITION IT SETS UP THREE UNIT VECTORS DEFINING THE X, Y, AND Z AXES
# ERENCED TO THE OPTICS COORDINATE SYSTEM. IN ADDITION IT SETS UP THREE UNIT VECTORS DEFINING THE X,Y, AND Z AXES
# REFERENCED TO THE OPTICS COORDINATE SYSTEM.
#
# THE INPUTS ARE: 1) THE STAR VECTOR REFERRED TO THE PRESENT STABLE MEMBER COORDINATES STORED AT STAR. 2) SAME ANGLE
# INPUT AS *SMNB*, I.E., SINES AND COSINES OF THE CDU ANGLES, IN THE ORDER Y Z X, AT SINCDU AND COSCDU. A CALL
# THE INPUTS ARE 1) THE STAR VECTOR REFERRED TO PRESENT STABLE MEMBER COORDINATES STORED AT STAR. 2) SAME ANGLE
# INPUT AS *SMNB*, I.E. SINES AND COSINES OF THE CDU ANGLES, IN THE ORDER Y Z X, AT SINCDU AND COSCDU. A CALL
# TO CDUTRIG WILL PROVIDE THIS INPUT.
#
# THE OUTPUT ARE THE SEXTANT SHAFT AND TRUNNION ANGLES STORED DP AT SAC AND PAC RESPECTIVELY. (LOW ORDER PART
# THE OUTPUTS ARE THE SEXTANT SHAFT AND TRUNNION ANGLES STORED DP AT SAC AND PAC RESPECTIVELY. (LOW ORDER PART
# EQUAL TO ZERO).
CALCSXA ITA VLOAD # PUSHDOWN 00-26D,28D,30D,32D-36D
28D
STAR
@ -105,18 +107,18 @@ CALCSXA ITA VLOAD # PUSHDOWN 00-26D, 28D, 30D, 32D-36D
HIUNITZ
STCALL ZNB1
SXTANG1
# Page 287
# SXTANG COMPUTES THE SEXTANT SHAFT AND TRUNNION ANGLES REQUIRED TO POSITION THE OPTICS SUCH THAT A STAR LINE-OF-
# SIGHT LIES ALONG THE STAR VECTOR.
#
# THE INPUTS ARE: 1) THE STAR VECTOR REFERRED TO ANY COORDINATE SYSTEM STORED AT STAR. 2) THE NAVIGATION BASE
# THE INPUTS ARE 1) THE STAR VECTOR REFERRED TO ANY COORDINATE SYSTEM STORED AT STAR. 2) THE NAVIGATION BASE
# COORDINATES REFERRED TO THE SAME COORDINATE SYSTEM. THESE THREE HALF-UNIT VECTORS ARE STORED AT XNB, YNB, AND
# ZNB.
#
# THE OUTPUTS ARE THE SEXTANT SHAFT AND TRUNNION ANGLES STORED DP AT SAC AND PAC RESPECTIVELY. (LOW ORDER PART
# EQUAL TO ZERO).
SXTANG ITA RTB # PUSHDOWN 16D,18D,22D-26D,28D
28D
TRANSP1 # EREF WRT NB2
@ -188,7 +190,6 @@ ZNB=S1 DLOAD
CLRGO
CULTFLAG
28D
# Page 289
# THESE TWO ROUTINES COMPUTE THE ACTUAL STATE VECTOR FOR LM, CSM BY ADDING
# THE CONIC R,V AND THE DEVIATIONSR,V. THE STATE VECTORS ARE CONVERTED TO
@ -208,6 +209,7 @@ ZNB=S1 DLOAD
# OR
# R(T) IN R-OTHER, V(T) IN V-OTHER (T IS DEFINED BY T-OTHER)
BANK 23
SETLOC COMGEOM2
BANK
@ -249,7 +251,6 @@ SVDWN2 VLOAD VSL*
0,2
STORE V-OTHER
RVQ
# Page 291
# SUBROUTINE TO COMPUTE THE NATURAL LOG OF C(MPAC, MPAC +1).
#
@ -258,7 +259,7 @@ SVDWN2 VLOAD VSL*
#
# SUBROUTINE RETURNS WITH -LOG IN DP MPAC.
#
# EBANK IS ARBITRARY.
# EBANK IS ARBITRARY..
BANK 14
SETLOC POWFLIT2
@ -269,7 +270,9 @@ LOG NORM BDSU # GENERATES LOG BY SHIFTING ARG
MPAC +3 # UNTIL IT LIES BETWEEN .5 AND 1.
NEARLY1 # THE LOG OF THIS PART IS FOUND AND THE
EXIT # LOG OF THE SHIFTED PART IS COMPUTED
TC POLY # AND ADDED IN. SHIFT COUNT STORED
DEC 2 # (N-1, SUPPLIED BY SMERZH)
2DEC 0 # IN MPAC +3.
2DEC .031335467
@ -302,26 +305,22 @@ CLOG2/32 2DEC .0216608494
# SUBROUTINE NAME: EARTH ROTATOR (EARROT1 OR EARROT2) DATE: 15 FEB 67
# MOD NO: N +1 LOG SECTION: POWERED FLIGHT SUBROS
# MOD BY: ENTRY GROUP (BAIRNSFATHER)
#
# FUNCTIONAL DESCRIPTION: THIS ROUTINE PROJECTS THE INITIAL EARTH TARGET VECTOR RTINIT AHEAD THROUGH
# THE ESTIMATED TIME OF FLIGHT. INITIAL CALL RESOLVES THE INITIAL TARGET VECTOR RTINIT INTO EASTERLY
# AND NORMAL COMPONENTS RTEAST AND RTNORM . INITIAL AND SUBSEQUENT CALLS ROTATE THIS VECTOR
# ABOUT THE (FULL) UNIT POLAR AXIS UNITW THROUGH THE ANGLE WIE DTEAROT TO OBTAIN THE ROTATED
# TARGET VECTOR RT . ALL VECTORS EXCEPT UNITW ARE HALF UNIT.
# THE EQUATIONS ARE:
# _ _ _ _
# THE EQUATIONS ARE
# - - - -
# RT = RTINIT + RTNORM (COS(WT) - 1) + RTEAST SIN(WT)
#
# WHERE WT = WIE DTEAROT
#
# RTINIT = INITIAL TARGET VECTOR
# _ _ _
# - - -
# RTEAST = UNITW*RTINIT
# _ _ _
# - - -
# RTNORM = RTEAST*UNITW
#
# FOR CONTINUOUS UPDATING, ONLY ONE ENTRY TO EARROT1 IS REQUIRED, WITH SUBSEQUENT ENTRIES AT EARROT2.
#
# CALLING SEQUENCE: FIRST CALL SUBSEQUENT CALL
# STCALL DTEAROT STCALL DTEAROT
# EARROT1 EARROT2
@ -329,21 +328,16 @@ CLOG2/32 2DEC .0216608494
# PUSHLOC = PDL+0, ARBITRARY. 6 LOCATIONS USED.
#
# SUBROUTINES USED: NONE
#
# NORMAL EXIT MODES: RVQ
#
# ALARMS: NONE
#
# OUTPUT: RTEAST (-1) .5 UNIT VECTOR EAST, COMPNT OF RTINIT LEFT BY FIRST CALL
# RTNORM (-1) .5 UNIT VECTOR NORML, COMPNT OF RTINIT LEFT BY FIRST CALL
# RT (-1) .5 UNIT TARGET VECTOR, ROTATED LEFT BY ALL CALLS
# DTEAROT (-28) CS MAY BE CHANGED BY EARROT2, IF OVER 1 DAY
#
# ERASABLE INITIALIZATION REQUIRED:
# UNITW (0) UNIT POLAR VECTOR PAD LOADED
# RTINIT (-1) .5 UNIT INITIAL TARGET VECTOR LEFT BY ENTRY
# DTEAROT (-28) CS TIME OF FLIGHT LEFT BY CALLER
#
# DEBRIS: QPRET, PDL+0 ... PDL+5
# Page 294
EBANK= RTINIT
@ -370,7 +364,7 @@ EARROT2 BOVB DDV
SIN VXSC
RTEAST # .5 UNIT
VAD VSL1
VAD UNIT # INSURE THAT RT IS "UNIT".
VAD UNIT # INSURE THAT RT IS 'UNIT'.
RTINIT # .5 UNIT
STORE RT # .5 UNIT TARGET VECTOR
@ -407,12 +401,15 @@ NB1NB2 2DEC +.8431756920 B-1
2DEC -.5376381241 B-1
2DEC 0
2DEC +.8431756920 B-1
# Page 296
10DEGS- DEC 3600
270DEG OCT 60000 # SHAFT 270 DEGREES 25 COMP.
270DEG OCT 60000 # SHAFT 270 DEGREES 2S COMP.
OCT 00000
20DEGS- DEC -07199
DEC -00000
20DEG- DEC 03600
DEC 00000