Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4219c Report Date: 09-May-96:19:26 Version: ********** Check-in Date: ********** 1.Proposal Title: DF-224 VERSION 8.1 FS INSTALLATION ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID ENG/SC Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Leslye Boyce CODE 441 USA ------------------------------------------------------------------------------------ 7. Abstract DF 224 Version 8.1 has been defined to include miscellaneous changes requested by the ST ScI and Mission Operations, such as the modification to the HGA Control Law to allow commanding of each gimbal; Observer limit change to allow guide star acquisition of faint stars, peak-up validity check, Dahl Friction compensation, modifications to allow for variable scaling of the #48 command and other miscellaneous changes. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4219c PI: Leslye Boyce Proposal Title: DF-224 VERSION 8.1 FS INSTALLATION ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Leslye Boyce GFSC/CODE 441 USA X Charlie Hicks LMSC/GSFC/CODE 440.8 USA X Jennifer Love GSFC/CODE 512 USA X ------------------------------------------------------------------------------------ 2. Scientific Justification. The time allocated will provide the specific vehicle configuration and dedicated ScT for installation and regression testing of Version 8.1 FS modifications. The new flight code once installed and validated via on-orbit regression test, will provide new capability. The specific HST configuration for installation of this flight code is needed to configure trhe vehicle, reduce the CPU processing during installation and perform regression test. ------------------------------------------------------------------------------------ 3. Description of proposed observations. INSTALLATION Install flight code changes, safemode macros and recovery load, new telemetry formats and transition the ground system elements. vehicle attitude: South Ecliptic Pole (+V3 Sunpoint) vehicle configuration: DF 224 8.0 NSSC1 4.0 and PDB 28.B must be the configuratin prior to installation of DF 224 8.1. The HST shall be in normal mode using the gyros for attitude reference. 4 Kbps "AN" format should be active, with the engineering recorder activities performed by generic scheduling by PASS. The following FSW processing must be disabled prior to installation: 1) FGS acquistion, ATTITUDE Maps/updates, Command Packets 33-47 Disabled; 2) FHST processing should be inactive, command packets 31 & 32. During orbits 4-6 the HGA control law will be disabled; therefore the HGA splines will be deleted from the SMS. A functional block will be forced at the end of orbit 6 in order to specify the intercept point of the 1st ephem track. SSAF Comcon requests should be included in the SMS of 15 to 20 minutes duration each for a total of 2 per orbit. A full DF 224 memory Dump will follow installation. All eng data will be recovered either in R/T or via the ETR. Time Requirement: 8.5 orbits dedicated REGRESSION TEST The regression test activities are defined to be the minimum activities required to assess the vehicle H&S. The majority of the regression test items are autonomously performed by the DF 224 FSW as a result of vehicle configuration. The activities have been defined and success/fail criteria established. Specific activities that are to be scheduled via the SMS are a large vehicle slew to the specified attitude with attendant solar array slew. The slew shall be a Type 2. Following is a Fine Lock Acq (P format), Coarse Track acq and reacq (A format). Vehicle attitude: -V1 Sunpoint Vehicle configuration: 4 Kbps AN format should be active with the ETR activities performed by PASS. During this period Operations will be switching between 4K AN, FN and PN. SSAF comcons will be requested 2 per orbit 15-20 mins each in SMS. All eng data will be recorded in R/T or on ETR. Time Required: 1.5 Orbits CONTIGENCY REMOVAL No contigency removal time was authorized; however, we request that a low priority observation follow the installation, because if problems are encountered, we may have to interrupt the observation to remove and restore the DF 224 FSW and ground system. Page 3 ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Due to the complexity of this DF-224 FS installation, dedicated ScT is needed to reduce the CPU processing and prevent unknown anomalous FSW operation, possibly causing entry into safemode. Previously, serendipitous installations of FSW code have proved to be difficult when specific vehicle configurations are desired. Project Office, Code 440 has therefore directed that all future FSW installations requiring specific vehicle configurations be submitted through the proposal system. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Because of the complexity of the installation, 9 orbits is requested to begin on or about day 230/1100. The use of this time is described as follows: DAY Orbit Content 230/1100 Flight S/W Installation 1 Install flight Code changes & acq logic change dump and verify (D&V) 2 Install safemode macros into scratch area, D&V 3 Install new 8.1 safemode macros, load A format, D&V 4 Position gimbals, Install HGA control law changes, transition ground elements to PDB 29.A 5-6 HGA Polarity Slews and interception of first ephemeris track. 7-8.5 Install Telemetry formats P&F, dump & verify Day 230/2230 Flight S/W Regression Test begins 8.5 Vehicle slew, Fine Lock ACQ (P format), R/T Analysis 9 Coarse Track (CT) Acq (A format), R/T analysis and CT re-acq (F format), R/T analysis ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. 2 SSAF Comcon requests of 15-20 minutes duration each for all orbits. Installation of the FS modifications will be conducted with the HST in normal mode using gyros for attitude reference; and specific DF-224 processing disabled (ie FHST, FGS) The following R/T and merge operations are required to completed the installation and regression test: MOC MERGE, R/T Activities 1) Establish initial configuration by disabling velocity aberration and parallax processing 2) Block loading (TMDIAG) 3) Verification of initial configuration for installation 4) Memory Dump and analysis 5) Polarity slews for HGA gimbals MOC Merge, SPC Activities 1) Possible edit and/or deletion of FHST updates and maps 2) Possible edit and/or deletion of splines from SMS 3) ETR scheduling 4) Activation and processing of 32 & 4K telemetry ------------------------------------------------------------------------------------ 11. Address Information Name: LESLYE BOYCE Category: PI Institution: CODE 441 Address: City: State: Zip Code: Country: Telephone: 301 286-8219 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4219c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 SEP S.ECLIPTIC POLE RA = 90.0D +/- .1", 1992 (NOMINAL) WITH +V3 TO DEC = -67.0D +/- .01" SUN ------------------------------------------------------------------------------------------------------------------------------------ 2 V1SUNPOINT MINUS V1 TO SUNPOINT RA = 327.0D +/- .1", 1992 DEC = -13.0D +/- .01" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4219c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 2 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK CYCLE 2 / 2-27 SEQ 2-3 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, BEGIN FS CODE CHANGES INSTALLATION VIA RTC; ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, BEGIN FS CODE CHANGES INSTALLATION VIA RTC; ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 4-5 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, BEGIN FS CODE CHANGES, INSTALLATION VIA RTC; ORBIT 2 ------------------------------------------------------------------------------------------------------------------------------------ 5 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, BEGIN FS CODE CHANGES, INSTALLATION VIA RTC; ORBIT 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 6-7 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, LOAD P FORMAT VIA MOC MERGE, BEGIN INSTALLATION OF NEW SAFEMODE MACROS, LOAD NEW A FORMAT DUMP & VERIFY; ORBIT 3 ------------------------------------------------------------------------------------------------------------------------------------ 7 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, LOAD P FORMAT VIA MOC MERGE, BEGIN INSTALLATION OF NEW SAFEMODE MACROS, LOAD NEW A FORMAT DUMP & VERIFY; ORBIT 3 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4219c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 8 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 8-9 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, SWITCH TO "A" FORMAT, POSITION GIMBALS VIA RTC, INSTALL NEW HGA CONTROL LAW TRANSITION GROUND SYSTEM; ORBIT 4 ------------------------------------------------------------------------------------------------------------------------------------ 9 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, SWITCH TO "A" FORMAT, POSITION GIMBALS VIA RTC, INSTALL NEW HGA CONTROL LAW TRANSITION GROUND SYSTEM; ORBIT 4 ------------------------------------------------------------------------------------------------------------------------------------ 10 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 10-11 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, HGA POLARITY SLEWS; ORBIT 5 ------------------------------------------------------------------------------------------------------------------------------------ 11 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, HGA POLARITY SLEWS; ORBIT 5 ------------------------------------------------------------------------------------------------------------------------------------ 12 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 12-13 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, HGA POLARITY SLEWS; ORBIT 6 ------------------------------------------------------------------------------------------------------------------------------------ 13 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, HGA POLARITY SLEWS; ORBIT 6 ------------------------------------------------------------------------------------------------------------------------------------ 14 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 14-15 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, INSTALL NEW P&F FORMATS; DUMP AND VERIFY; ORBIT 7 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4219c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 15 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, INSTALL NEW P&F FORMATS; DUMP AND VERIFY; ORBIT 7 ------------------------------------------------------------------------------------------------------------------------------------ 16 SEP S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK SEQ 16-17 NO GAP Comments: NO FGS, NO FHST MAPS/UPDATES, COMMAND PACKETS 31-47 DISABLED, INSTALL NEW P&F FORMATS; DUMP AND VERIFY; ORBIT 8 ------------------------------------------------------------------------------------------------------------------------------------ 17 V1SUNPOINT S/C DATA V1 CONTROL=FGS 1 20M 1 1 RT ANALYSIS REQ UPLINK PCS MODE F ORIENT 82.97D +/- 0.1D Comments: SLEW TO -V1SUNPOINT RA = 327 DEC -13 ROLL (ORIENTATION) = 82.97, FINE LOCK ACQ VIA SPC, LOAD P FORMAT VIA MOC MERGE; ORBIT 8; ------------------------------------------------------------------------------------------------------------------------------------ 18 V1SUNPOINT S/C DATA V1 CONTROL=FGS 1 20M 1 1 RT ANALYSIS REQ UPLINK PCS MODE C /18-19 SEQ 18-19 NO GAP SAME ORIENT FOR 18 -19 AS 17 Comments: COARSE TRACK ACQ, LOAD A FORMAT VIA MOC MERGE; ORBIT 9; ------------------------------------------------------------------------------------------------------------------------------------ 19 V1SUNPOINT S/C DATA V1 CONTROL=FGS 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: COURSE TRACK RE-ACQ LOAD FORMAT F VIA MOC MERGE (ORBIT 9) ------------------------------------------------------------------------------------------------------------------------------------ 20 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: CONTINGENCY: NO FGS, NO FHST MAPS OR UPDATES COMMAND PACKETS 31-47 DISABLED, LOAD & INSTALL SAFING MACROS INTO SCRATCH (ORBIT 10) ------------------------------------------------------------------------------------------------------------------------------------ 21 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: PERFORM MEMORY DUMP (ORBIT 10) ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4219c [ 8] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 22 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: SWITCH TO LGA, REMOVE HGA CONTROL LAW CHANGES (ORBIT 11) ------------------------------------------------------------------------------------------------------------------------------------ 23 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: PERFORM MEMORY DUMP (ORBIT 11) ------------------------------------------------------------------------------------------------------------------------------------ 24 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: LOAD VER. 8.0 SAFING MACROS (ORBIT 12) ------------------------------------------------------------------------------------------------------------------------------------ 25 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: SEE ABOVE (ORBIT 12) ------------------------------------------------------------------------------------------------------------------------------------ 26 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: SWITCH TO P FORMAT LOAD VER. 8.0 A FORMAT (ORBIT 13) ------------------------------------------------------------------------------------------------------------------------------------ 27 V1SUNPOINT S/C DATA V1 CONTROL=GYRO 1 20M 1 1 RT ANALYSIS REQ UPLINK Comments: INSTALL SAFING MACORS AND PERFORM MEMORY DUMP (ORBIT 13) ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4219c [ 9] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations S/C ------------------------------------------------------------------------------------------------------------------------------------ Opmodes DATA ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CONTROL=GYRO CONTROL=FGS ------------------------------------------------------------------------------------------------------------------------------------ Proposal for ENG/SC ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements RT ANALYSIS; REQ UPLINK; CYCLE 2 / 2-27; SEQ 2-3 NO GAP SEQ 4-5 NO GAP SEQ 6-7 NO GAP SEQ 8-9 NO GAP SEQ 10-11 NO GAP SEQ 12-13 NO GAP SEQ 14-15 NO GAP SEQ 16-17 NO GAP PCS MODE F; ORIENT 82.97D +/- 0.1D; PCS MODE C /18-19; SEQ 18-19 NO GAP; SAME ORIENT FOR 18-19 AS 17; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements ------------------------------------------------------------------------------------------------------------------------------------ Target Names SEP V1SUNPOINT ------------------------------------------------------------------------------------------------------------------------------------