WRITEUP_N.TXT FEB 15, 1982-KES ccc Updated for Uranus parameters Sept 5,86 CC Updated for changes for Uranus, 15 Sept,88 & Oct 13,88 CC Last C-Matrix value was not getting in and CC needed Range of S/C to Sun (MERGE corr'd) Note: for Uranus, the boresight offset used for all data (Nav and Foot) is the value for the 1/16 FOV. Cc Updated by Wayne Pryor to show calculated params added by cc his analysis s/w Sept 5,89 Cc Placed in increasing order again, Sept 10,89 C# Updated for Neptune Sept 10,89 cc# added Footprint source flag July 16,90 C3 Updated comments for Command and status words Apr 08,91 ************************************************* THE CONTENTS OF THE MERGE FILE ARRAY IS AS FOLLOWS ANS(1-80) HEADER DATA VALUES ANS(81-160) DATA STATUS WORDS 161-240 80 F.P. DATA VALUES 301-350 50 F.P. NAV VALUES 351-380 30 F.P. PV VALUES 381-396 4 sets of (Ra/Dec) from FOOT for Imaging 398-399 Data Quality and Source Flags 401-450 50 F.P. FOOT VALUES FROM FIRST FOOT REC/MJF 451-500 50 F.P. FOOT VALUES FROM SECOND FOOT REC/MJF 500-550 50 " " " " THIRD " " 551-600 50 " " " " FOUTH " " THE POLARIZATION ROUTINE WRITES ANSWERS INTO TWO AREAS: HEADER VALUES (40-70) CONTAIN THE FIT COEFFICIENTS AND STATISTICAL PARAMETERS AND THE INTENSITY AND POLARIZATION VALUES, CALIBS, ... GO AFTER 600. ************************************************* INDEX VALUES IN SYSTEM IDL FORTRAN 0-649 1-650 THE HEADER WORD LOCATIONS CONTAIN 0 1 IHDR(1)=NREC 1 2 IHDR(2)=MODE SPACECRAFT EVENT TIMES IN GMT 2 3 IHDR(3)=IYR 3 4 IHDR(4)=IDAY 4 5 IHDR(5)=IHR 5 6 IHDR(6)=IMIN 6 7 IHDR(7)=ISEC 7 8 IHDR(8)=MSEC 8 9 IHDR(9)=MOD16 9 10 IHDR(10)=MOD60 10 11 IHDR(11)=LINESC SPACE CRAFT IDENTIFICATION 11 12 IHDR(12)=IDSC EARTH RECEIPT TIMES IN GMT S APENDAGE FOR START OF FIRST MINOR FRAME E APENDAGE FOR START OF LAST MINOR FRAME 12 13 IHDR(13)=IDAYS 13 14 IHDR(14)=IHRS 14 15 IHDR(15)=IMINS 15 16 IHDR(16)=ISECS 16 17 IHDR(17)=MSECS 17 18 IHDR(18)=IDAYE 18 19 IHDR(19)=IHRE 19 20 IHDR(20)=IMINE 20 21 IHDR(21)=ISECE 21 22 IHDR(22)=MSECE 22 23 IHDR(23)=MFSEG 23 24 IHDR(24)=IDS=SCE TIME FLAG 24 25 IHDR(25)=GOLAG TIME CORRECTION FLAG 25 26 IHDR(26)=GOLAY CORRECTION COUNT 26 27 IHDR(27)=DOWNLINK TEMEMETRY RATE 27 28 IHDR(28)=NO. OF POINTS 28 29 IHDR(29)=NO. OF ENG. VALUES 29 30 IHDR(30)=NO. OF ENG. WORDS RETURNED 30 31 IHDR(31)=SOURCE TAPE NO. 31 32 IHDR(32)=FDSC TIME CORRECTION FLAG 32 33 IHDR(33)=ICMD1=SUB-HEADER PPS COMMAND WORD,IN ORDER 33 34 IHDR(34)=ICMD2 34 35 IHDR(35)=ICMD3 35 36 IHDR(36)=ICMD4 36 37 IHDR(37)=ICMD5 The PPS COMMAND word (different from Status) is !c3 read as follows (LSB=bit #0, 12 bit word): !c3 11-9 = Commanded Filter Position !c3 (0 = posn 0 = 5900A filter !" 1 = 4900A 2 = 3900A 3 = 3100A 4 = 2630A 5 = 2350A 6 = 7500A 7 = 7250A Note: wavelength centers of the filters are more accurately described in the R.West calibration document.) 8-6 = Commanded Analyzer Position (0 = posn 0 = Open, 1 = 0 deg polarizer angle, 2 = 60 deg 3 = 120 deg 4 = dark slide 5 = Cal slide 6 = 135 deg 7 = 45 deg) 5-4 = Commanded Aperture Position (0=1/4,1=1,2=3.5,3=1/16) 3 = Commanded H.V. State (0=On,1=Off) 2 = Commanded J-mode sensitivity (0 = J-mode Off = most sensitive, 1 = J-mode On = less sensitive) 1 = Commanded Solar Sensor Inhibit (0 = No inhibit of Solar sensor hardware function, 1 = Overrride h/w = keep H.V. On) 0 = H.V. Override !. (0 = No override, 1 = keep H.V. On) !c3 COUNT # DQSW ERROR FRAMES 37 38 IHDR(38)=IDQ VALUES FROM 40 TO 78 ARE ADDED BY THE POLAR. ROUTINE 39-42 40-3 COEF #1 FOR EACH F/A SET 43-6 44-7 COEF #2 " " 47-50 48-51 COEF #3 " " 51-4 52-5 COEF #4 " " 55-8 56-9 COEF #5 " " 59-62 60-63 CHI SQUARE FOR CURVE FIT FOR EACH F/A SET 63-6 64-7 # POINTS IN EACH SET FOR WHICH CURVE FIT WAS DONE 67 68 # RECORDS IN THE POINTING CASE (FOR CURVE FIT) 68 69 # CURRENT RECORD OF ABOVE SET 80-159 81-160 STATUS VALUES THE STATUS LOCATIONS CONTAIN THE STATUS WORDS EQUIVALENT TO THE FOLLOWING DATA WORDS FROM TELM. There are 10 status bits, shown below; there values !c3 are the same as the Command Word values shown above. !. (LSB = bit #0): !. 9-7 = Actual Filter Wheel Posn 6-4 = Actual Analyzer Wheel Posn 3 = Data word overflow flag (0 = no overflow, 1 = events exceed 20 bit un-compressed data word) 2 = J-mode state (0=J-mode Off, 1=On) 1 = Solar Sensor state (0 = normal, 1 = !. bright source has forced H.V. reduction) !. 0 = H.V. state (0 = H.V. On, 1 = H.V. Off) !c3 160-239 161-240 DATA THE DATA LOCATIONS CONTAIN 80 F.P. VALUES FROM THE 80 MINOR FRAMES IN THE GS-3 RECORD (THERE ARE NO OFFSETS, CALIBS, OR ETC) 296 297 ANS(297)=TIME OF DAY IN DECIMAL DAYS 297 298 ANS(298)=DATA MODE TIMING (=MINOR FRAME=PPS INTEGRATION+ WHEEL MOVEMEMT) GIVEN IN SECONDS 300-5 301-6 SAME TIMES AS ABOVE 306-11 307-12 CARTESIAN STATE OF S/C, SUN CENTERED,EARTH MEAN EC. 6R, KM AND KM/SEC 312-7 313-8 SAME FOR EARTH 6R, " " IF CRUISE FORMAT THEN GET: 318-23 319-24 SAME FOR JUPITER 3R, " " 324-9 325-30 SAME FOR SATURN 330 331 ANGLE SUN-S/C-EARTH 311 332 CELESTIAL CLOCK OF EARTH IF JUPITER FORMAT THEN GET: 324-9 325-30 CART. STATE OF S/C, EARTH CENTERED, (EMEC50) 330-5 331-6 CARTESIAN STATE OF S/C, CENTRAL BODY CENTERED, EMEC 336 337 RANGE,CENTRAL BODY TO S/C 1R, KM 337-9 338-40 CARTESIAN STATE OF S/C,IO CENTERED, EMEC 340-2 341-3 " " " , EUROPA CENTERED, EMEC 343-5 344-6 " " " , GANYMEDE CENTERED, EMEC 346-8 347-9 " " " , CALLISTO CENTERED, EMEC IF SATURN FORMAT THEN GET: 318-23 319-24 CART. STATE OF SATURN, SUN CENT.,EMEC50 324-9 325-30 CART. STATE OF S/C, EARTH CENTERED 330-5 331-6 " " " ,SATURN CENTERED, EMEC50 336 337 RANGE, SATURN TO S/C 337-42 338-43 CARTESIAN STATE OF S/C,TITAN CENTERED,EMEC50 343 344 TITAN TO S/C RANGE, KM 344 345 TITAN SCATTERING PLANE ANGLE FROM "M" VECTOR **PICTURE BODY 345 346 CWH CHECK (SHOULD BE 0.) 346 347 SATURN SCATERING PLANE ANGLE 347 348 #47 CHECK VALUE 348 349 SATURN PHASE ANGLE 349 350 TITAN PHASE ANGLE THE POINTING VECTOR ARRAY (PV(30)) CONTAINS: 350 351 -SCE GMT YEAR R,YEARS AD 351 352 SCE GMT DAY R,DAY OF YEAR 352 353 SCE GMT HOUR R,HOUR OF DAY 353 354 SCE GMT MINUTE R,MIN OF HOUR 354 355 SCE GMT SECONDS R,SEC OF MIN 355 356 SCE GMT MILLISECS R,MSEC OF SEC 356 357 FDSC MOD16 COUNT R,BINARY COUNTS 357 358 FCSC MOD60 COUNT R,BINARY COUNTS 358 359 PITCH LIMIT CYCLE R,DEGS 359 360 YAW LIMIT CYCLE R,DEGS 360 361 ROLL LIMIT CYCLE R,DEGS 361-3 362-4 CARTESIAN UNIT VECTOR OF S/C X-AXIS,S/C-CENTERED EARTH MEAN ECLIPTIC 3R,DIM 364-6 365-7 SAME Y-AXIS 3R, DIMENTIONLESS 367-9 368-70 SAME Z-AXIS 3R, " 370 371 CELESTIAL CLOCK OF HIGH GAIN R,DEG 371 372 CONE OF HIGH GAIN R,DEG 372 373 CLOCK OF PPS OPTIC AXIS, R 373 374 CONE OF PPS OPTIC AXIS, R 374-6 375-7 CARTESTIAN UNIT VECTOR OF PPS OPTIC AXIS, S/C CENTERED 3R, DIM 377 378 AZIMUTH OF NOMINAL PLATFORM R,DEGS 378 379 ELEVATION R,DEGS 379 380 TWIST R,DEGS FOOT values added for Neptune imaging (4 sets of 12s) C# 380-3 381-4 FDS:001 1st pair is (Ra/Dec) of Body Center (S/C Cent'd) C# 384-7 385-8 fds:201 2nd pair is (Ra/Dec) of Optic Axis (S/C Cent'd) C# 388-391 389-392 FDS:401 C# 392-5 393-6 FDS:601 C# THE CONTENTS OF THE NAVIGATION VECTOR (NAV(50)): 397 398 IMAGE QUALITY FLAG (IMPLEMENTED 1-91 WRP) 0=NO IMAGE ASSOCIATED WITH FRAME 1=FRAME IS AT SAME POINTING AS A C-SMITHED IMAGE AND PRECEDES IMAGE 2=C-SMITHED IMAGE IS ASSOCIATED WITH THIS FRAME DATA QUALITY FLAGS: The image flag associates images used for c_smithing with science data frames. Images are flagged at the frame IN WHICH THEY ARE SHUTTERED (:767). Any image at the same platform pointing, before the image, is tagged with a value of the image flag value minus 0.5 . 398 399 Image quality/slew flag 0= No image associated with this frame 0.5 This frame associated with a Pollack image used for C_smithing 1.0 Image is a Pollack verified image frame used for C_smithing 1.5 This frame associated with the image (below, =2) used for C_smithing 2.0 Time of an image used for C_smithing but image content not verified 2.5 This frame associated with the image (below, =3) used for C_smithing (See Pre-Naif note below.) 3.0 Time of an image used for C_smithing but image content judged not acceptable. (Pre-Naif Footprint placed into these records. See 399 flag.) 400.0 Indicates Neptune processing (LUT undetermined) 401.0 Neptune with fixed F/A 402.0 Neptune with some LUT running (may indicate dropouts) 399 400 Footprint geometry source flag (applied at time of orig. Merge run): Uranus values: 0=3rd Post-Naif, 1=1st post-Naif, 2=Pre-Naif Nept values:40=43=C_smithed final, 44= non-smithed final Cc# 45= early final 46= predict GENERAL FOTPRINT NOTES: THE HEADER RECORD SUPPLIES ELEVATION,CROSS-ELEV AND ROTATION OF THE PPS OPTIC AXIS FROM ISSNA OPTIC AXIS ALL INTERCEPT POINTS ARE CALCULATED ON AN ELLIPTICAL PLANET THE FOOTPRINT DATA CONTAINS THE FOLLOWING PARAMS PER RECORD THE OUTPUT SCAN PLATFORM FOOTPRINT DATA ARRAY CONTAINS 400-49 401-50 IF THE FOOTPRINT DATA IS 12S INFO THEN 4 SETS OF PARAMS 450-99 451-500 FOR EACH MAJOR FRAME; THEREFORE FILLS TO 600 500-49 501-50 IF THE DATA IS 24S CENTERS THEN JUST GET 400-500 FILLED 550-99 551-600 400-5 401-6 (3-8)SCE GMT TIME 6I,YR,D,H,M,S,MSEC 406-7 407-8 (9-10)FDSC MOD16 AND MOD60 2I,CNTS 408 409 (2)PICTURE BODY ID Int. **notes indicate not.avail.?? 3=EARTH, 5=JUPITER, 6=SATURN C#replac'd 13=MOON, 15=IO, 25=EUR, 35=GANY, 45=CAL, 55=ALM C#replac'd 16=JANUS, 26=MIMAS, 36=ENCEL, 46=TETHY, 56=DIONE C#replac'd 408 409 PICTURE BODY FLATTENING C# 409 410 (68)MOTION BIT (1=IN MOTION) 410-1 411-2 (43-4)PICT. BODY SUB-SOLAR PLANETODETIC LAT&LON 2R,DEG 412-3 413-4 (45-6)" " " " " -S/C " " " " "" " 414 415 (62)CELESTIAL CONE ANGLE OF PPS AXIS (PHASE=180.-CONE) R,DEG 415 416 (69)INST OPTIC AXIS-S/C-PICT BODY CENTER ANGLE R,DEG 416 417 (71)SLANT RANGE (S/C-PICT BODY INTERCEPT/TANG PT) R,KM 417-8 418-9 (72-3)PLANETODETIC LAT&LON (") 2R,DEG 419 420 (74) SOLAR INCIDENCE ANGLE R,DEG -MU0 420 421 (75) EMISSION ANGLE R,DEG -MU ABOVE TWO INCLUDE PLANET OBLATENESS 421 422 (77)AZ IN PLANE TANG. TO SURFACE AT SLANT RANGE FROM P5-P6 VECT. TO P5-SUN (CLOCKWISE) R,DEG 422 423 (78)AZ IN PLANE ...FROM P5-P6 TO P5-S/C R,DEG 423 424 (83)POINT OF CLOSEST APPR. ALT OF OPTIC AXIS (+ FOR TANGENCY, - FOR INTERCEPT) R,KM ****FOR JUPITER AS PICTURE BODY 424 425 (107)ANGLE JUP SYSII PRIME MERID MINUS SYSI R,DEG 425 426 (108)ANGLE JUP SYSIII PRIME MERID-SYSI PRIME R,DEG ****FOR SATURN AND URANUS AS PICTURE BODY 424 425 (76)PICTURE BODY INTERCEPT PHASE ANGLE R,DEG 425 426 (82)PICTURE BODY INTERCEPT LOCAL HOUR ANGLE R,DEG 426 427 (40) RANGE S/C TO CENTRAL BODY R,KM 427 428 (14) TIME TO(-)/FROM(+) CENTRAL BODY PERIAPSIS R,SEC ****For Updated Uranus processing 427 428 (36) Range, S/C to Sun R,KM 428-30 429-31 (15-17) CARTESIAN POSN AND VEL OF S/C,CENTRAL BODY CENTERED,EMEQ50 R,KM,KM/S 431-9 432-40 (49-57) TRANSFORMATION MATRIX: SCAN.PLAT. TO EMEQ50 440-2 441-3 (24-6) CART.UNIT VECT OF SUN DIRECTION, S/C CENTERED, EMEQ50 R,DIM 443-5 444-6 (27-9) CART. " " OF EARTH, S/C CENTERED, EMEQ50 " 446 447 (36) RANGE OF CENTRAL BODY TO SUN R,KM 447 448 (85) RANGE CENTRAL BOD.CENTER TO RING INTERCEPT POINT KM ****FOR SATURN 448 449 (88) SAT.RINGS INTERCEPT PT. S/C EMISSION ANGLE 449 450 (95) SAT.RINGS INTERCEPT PT. LOCAL HR ANGLE ****FOR URANUS 448 449 (86)LONG.RING PLANE INTERC PT PROJ. ON CENT.BOD 449 450 (139)PPS OPTIC AXIS "CHI" THE PROGRAM CRUNCH PLACES THE FOLLOWING VALUES INTO A NEW VERSION OF THE MERGE FILE AFTER PROCESSING FOR POLARIZATION STORE THE ANSWERS. THE CRUNCH PROGRAM WAS UPDATED AND NOW ADDS ADDITIONAL PARAMS FROM 628 THRU 637. NOTE: CURRENT VERSION INDICATES DATE AND TIME INFO NOT BEING INSERTED. DO 3410 II=1,50 3410 RAW(600+II)=0. !ZERO ANSWER PORTION OF ARRAY 600 601 MYR !RUN YEAR 601 602 MMO*100+MDAY !RUN MONTH*100+DAY 602 603 MHR*100+MMI !RUN HOUR*100+MINUTES 603 604 SECCHI !SECANT 2*PHASE VALUE USED DO 3420 II=1,2 !RECORD K1 AND K2 VALUES 604-5 605-6 RAW(604+II)=K16(II) !F4 THEN F6 VALUE 606-7 607-8 RAW(606+II)=K26(II) 608-9 609-10 RAW(608+II)=K17(II) 610-1 611-2 3420 RAW(610+II)=K27(II) !THIS USES RAW(605-612) 612 613 START !POINTING DELTA TIME 613 614 14.*.6 !OFFSET FOR F4 A6A7 TRANSITION 614 615 -26.*.6 ! " F6 " " 615 616 CALIB(1) !STORE I/F CAL FACTOR FOR F4 616 617 CALIB(2) ! " " F6 DO 3430 II=1,4 !STORE DN DETERMINED ANSWERS 617-20 618-21 3430 RAW(617+II)=ANS(II) !ONE F/A VALUE-RAW(616-9) 621 622 F4INTEN !INTENSITY FOR F4 622 623 F6INTEN !INTENSITY FOR F6 623 624 POLF4 !POLARIZ. FOR F4 624 625 POLF6 !POLARIZ. FOR F6 625 626 SIGPOL4 !UNCERTAINTY IN POLAR. F4 626 627 SIGPOL6 ! " " F6 627 628 QOVERI4 !Q/I, FILTER 4 628 629 QOVERI6 !Q/I, FILTER 6 629 630 SIGQ4 !UNCERTAINTY = Q/I, F4 630 631 SIGQ6 !UNCERTAINTY = Q/I, F6 631 632 BACK4 !BACKGROUND, FILTER 4 632 633 BACK6 !BACKGROUND, FILTER 6 633 634 F4IETMP !INTENSITY CORRECTED FOR ETEMP 634 635 F6IETMP ! " " " " 635 636 SIGF4I !UNCERTAINTY IN INTENSITY 636 637 SIGF6I !UNCERTAINTY IN INTENSITY (SEE ADDITIONAL PARAMETERS STORED IN "HEADER" AREA AT REC.START) 637 638 FACTOR4 !Filter 4 Field of View factor 638 639 FACTOR6 !Filter 6 Field of View factor 639 640 F4IETMP*FACTOR4 !Temperature and FOV correc'd F4 Inten 640 641 F6IETMP*FACTOR4 !Temperature and FOV correc'd F6 Inten 641 642 SECCHI4 !Seccant of (2*Chi) for F4 (C-Matrix) 642 643 SECCHI6 !Seccant of (2*Chi) for F6 (C-Matrix) 643 644 ETEMP !Engineering value for Electron.temp. 644 645 MODELF4 !MODEL DIRECTLY COMPARABLE TO 640 645 646 MODELF6 !MODEL DIRECTLY COMPARABLE TO 641 646 647 CHIVAL4 !CHI FROM C-MATRIX CALC FOR F4 647 648 CHIVAL6 !CHI FROM C-MATRIX CALC FOR F6 648 649 DPHI4 !DELTA-PHI FOR F4 649 650 DPHI6 !DELTA-PHI FOR F6 THAT LEAVES NONE AVAILABLE OI