6559( 7) - 03/05/97 12:30 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6559 Version: 7 Check-in Date: 04-Mar-1997 13:25:56 1.Proposal Title: An Imaging Study of Asteroids ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle SOLAR SYSTEM GO 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: ALEX STORRS SPACE TELESCOPE SCIENCE INSTITUTE CoI: Alan Stern Southwest Research Institute N CoI: Eddie Wells Computer Sciences Corporation N CoI: Ben Zellner Georgia Southern University N ------------------------------------------------------------------------------------ 6. Abstract We will obtain WFPC2 images of 8 main belt asteroids that will have favorable apparitions during cycle 6. The images will be searched for companion bodies. Small geocentric distance is necessary for this search to be maximally effective (Delta <= 1.5AU). Images in the F439W, F673N, F791W, F953N, and F1042M filters will define the 1 micron Fe^2+ feature and allow interpretation of compositional differences between the primary and secondary bodies, as well as any brightness variations across the disk(s) as being due solely to albedo, or to compositional variegation. This program was originally intended as a snapshot survey (with a much larger target pool) but a change in procedures since the last asteroid snapshot survey has disallowed this type of observation on moving targets. Revised 12/20/96 to replace seven targets with targets observable after SM97. ------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 2] Observations Description ------------------------ Images with the planetary camera (PC) through five filters will be obtained. The filters are F439W, F673N, F791W, F953N, and F1042M. These filters are similar to those used in observing asteroid 4 Vesta (HST GO-5489). They define the continuum in the visible region, and the depth of the 0.9 micron Fe^2+ feature. The WFPC2 Exposure Time Calculator indicates that full well (SNR of 230) can be achieved in less than 40 seconds exposure time on an 11th magnitude asteroid (simulated by a G5 spectrum). Thus images in the five filters above will only require 17 minutes plus guidestar acquisition time, even for the faintest asteroids (when observed near closest approach to the Earth). This short exposure time leads to the idea that this project would be best done as a snapshot survey. 132 asteroids were originally selected for this purpose. Of these 18 had particularly good apparitions. This subset is contained in this proposal. The first eight will allow multi-pixel resolution of the asteroidal disk, while the last ten will only be marginally resolved at best. Only the first eight were approved by the TAC, but all will be good candidates for companion searches. An asteroid snapshot survey was performed in cycle 3 (GO- 5489, PI Zellner). For cycle 5 the call for proposals was changed to specifically disallow ``snaps'' on moving targets. Apparently the decision to add this restriction was made without any consultation of the planetary community. It may therefore be possible to reverse this decision and use these observations to ``break the ice''-- to drive development of techniques to schedule moving target snaps as easily as fixed target snaps. Eight orbits have been allocated to do the first eight targets in the manner of a normal GO program. The other ten targets could be used as snapshot candidates. This means that not all of the latter would be expected to execute, as is normal with snapshot surveys. It may be necessary, for example, to make the observations under gyro control, instead of the single guidestar that is envisioned. This practice will probably result in missing 1/3 of the scheduled observations, based on previous experience. Working the bugs out on these ten targets will not cripple the science if not all of them are observed, and may allow this useful mode of observation to be opened to the planetary community. Snapshot surveys could be very useful for monitoring the changes in the cloud patterns of the major planets, for example, or for monitoring the brightness of large comets. Real Time Justification ----------------------- We would like these observations to be executed close to each target's closest approach to the Earth. Some of these approach in May of 1996 and so would be candidates for early execution. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 3] Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: ------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 4] TARGET LIST b)Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 | TARGET NAME: 8-FLORA ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 8(FLORA) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=2.2015786,E=0.1567003,I= | 5.88680,O=111.06225,W=284.98590,M=240.82 | 088,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 8-FLORA EARTH LT 1.0 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 8.1 | OPPOSITION DIAMETER = 0.22". B-V = 0.89 | OPPOSITION IN LATE SEPT. '97. | ELEMENTS FROM MPC 24084-- MAY NEED | TO UPDATE BEFORE OBS. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 | TARGET NAME: 11-PARTHENOPE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 11(PARTHENOPE) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=2.4532293,E=0.1002338,I= | 4.62218,O=125.66841,W=194.37364,M=336.28 | 883,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 11-PARTHENOPE EARTH LT 1.45 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 9.2 | OPPOSITION DIAMETER = 0.16". B-V = 0.85 | OPPOSITION IN LATE OCT. '97. | ELEMENTS FROM MPC 24085-- MAY NEED | TO UPDATE BEFORE OBS. | ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 5] TARGET LIST b)Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 | TARGET NAME: 10-HYGIEA ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 10(HYGIEA) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=3.1349760,E=0.1202865,I= | 3.84487,O=283.68514,W=314.71270,M=135.82 | 379,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 10-HYGIEA EARTH LT 2.6 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 10.3 | OPPOSITION DIAMETER = 0.24". B-V = 0.69 | OPPOSITION IN DEC. '97. ELEMENTS | FROM MPC 24219-- MAY NEED TO UPDATE | BEFORE OBS. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 4 | TARGET NAME: 29-AMPHITRITE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 29(AMPHITRITE) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=2.5541771,E=0.0731607,I= | 6.10722,O=356.58926,W=63.30013,M=105.020 | 27,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 29-AMPHITRITE EARTH LT 1.8 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 9.4 | OPPOSITION DIAMETER = 0.18". B-V = 0.83 | OPPOSITION IN April '97. ELEMENTS | FROM MPC 23111 | ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 6] TARGET LIST b)Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 5 | TARGET NAME: 89-JULIA ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 89(JULIA) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=2.5516213,E=0.1823714,I= | 16.14021,O=311.71856,W=44.47684,M=314.68 | 791,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 89-JULIA EARTH LT 1.45 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 9.8 | OPPOSITION DIAMETER = 0.16". B-V = 0.88 | OPPOSITION IN Nov. '97. ELEMENTS | FROM MPC 24085-- MAY NEED TO UPDATE | BEFORE OBS. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 6 | TARGET NAME: 144-VIBILIA ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 144(VIBILIA) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=2.6565308,E=0.2334923,I= | 4.81213,O=76.72729,W=292.89833,M=301.068 | 99,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 144-VIBILIA EARTH LT 1.25 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 10.1 | OPPOSITION DIAMETER = 0.18". B-V = 0.72 | OPPOSITION IN SEPT. '97. ELEMENTS | FROM MPC 22665-- MAY NEED TO UPDATE | BEFORE OBS. | ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 7] TARGET LIST b)Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 7 | TARGET NAME: 1220-CROCUS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 1220(CROCUS) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | TYPE=ASTEROID,A=3.0111306,E=0.0677771,I= | 11.36719,O=113.73369,W=328.16772,M=211.7 | 1026,EPOCH=13-Nov-1996,EQUINOX=J2000 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 1220-CROCUS EARTH LT 2.15 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 15.4 | OPPOSITION DIAMETER UNKNOWN. B-V = 0.7 | OPPOSITION IN EARLY SEPT. '97. | ELEMENTS FROM MPC 19985-- MAY NEED | TO UPDATE BEFORE OBS. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 8 | TARGET NAME: 54-ALEXANDRA ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID 54(ALEXANDRA) ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=54(ALEXANDRA) | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | RANGE 54-ALEXANDRA EARTH LT 1.3 | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 10.0 | OPPOSITION DIAMETER = 0.18". B-V = 0.70 | OPPOSITION IN JUNE '96. | ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 8] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 8-FLORA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 2.3 S SEQ 10-150 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 20 8-FLORA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 5.0 S ------------------------------------------------------------------------------------------------------------------------------------ 30 8-FLORA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.3 S ------------------------------------------------------------------------------------------------------------------------------------ 40 8-FLORA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 35 S ------------------------------------------------------------------------------------------------------------------------------------ 50 8-FLORA WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 35 S ------------------------------------------------------------------------------------------------------------------------------------ 60 8-FLORA WFPC2 IMAGE PC1 F1042M ATD-GAIN=7 1 35 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 80 8-FLORA WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 0.3 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 8-FLORA WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 5.0 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 8-FLORA WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 2.3 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 110 8-FLORA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 2.3 S ------------------------------------------------------------------------------------------------------------------------------------ 120 8-FLORA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 5.0 S ------------------------------------------------------------------------------------------------------------------------------------ 130 8-FLORA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.3 S ------------------------------------------------------------------------------------------------------------------------------------ 140 8-FLORA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 35 S ------------------------------------------------------------------------------------------------------------------------------------ 150 8-FLORA WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 35 S ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 9] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 11-PARTHENO WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 3.0 S SEQ 10-150 NON-INT PE ------------------------------------------------------------------------------------------------------------------------------------ 20 11-PARTHENO WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 7 S PE ------------------------------------------------------------------------------------------------------------------------------------ 30 11-PARTHENO WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.4 S PE ------------------------------------------------------------------------------------------------------------------------------------ 40 11-PARTHENO WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 40 S PE ------------------------------------------------------------------------------------------------------------------------------------ 50 11-PARTHENO WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 40 S PE ------------------------------------------------------------------------------------------------------------------------------------ 80 11-PARTHENO WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 0.4 S PE Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 11-PARTHENO WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 7 S PE Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 11-PARTHENO WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 3.0 S PE Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 110 11-PARTHENO WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 3.0 S PE ------------------------------------------------------------------------------------------------------------------------------------ 120 11-PARTHENO WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 7 S PE ------------------------------------------------------------------------------------------------------------------------------------ 130 11-PARTHENO WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.4 S PE ------------------------------------------------------------------------------------------------------------------------------------ 140 11-PARTHENO WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 50 S PE ------------------------------------------------------------------------------------------------------------------------------------ 150 11-PARTHENO WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 50 S PE ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 10] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 10-HYGIEA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 20 S SEQ 10-130 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 20 10-HYGIEA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 40 S ------------------------------------------------------------------------------------------------------------------------------------ 30 10-HYGIEA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 2.6 S ------------------------------------------------------------------------------------------------------------------------------------ 40 10-HYGIEA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 200 S Comments: Really want 300s, but there isn't time... ------------------------------------------------------------------------------------------------------------------------------------ 50 10-HYGIEA WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 200 S Comments: Really want 300s, but there isn't time... ------------------------------------------------------------------------------------------------------------------------------------ 80 10-HYGIEA WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 2.6 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 10-HYGIEA WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 40 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 10-HYGIEA WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 20 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 110 10-HYGIEA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 20 S ------------------------------------------------------------------------------------------------------------------------------------ 120 10-HYGIEA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 40 S ------------------------------------------------------------------------------------------------------------------------------------ 130 10-HYGIEA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 2.6 S ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 11] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 29-AMPHITRI WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 4 S SEQ 10-150 NON-INT TE ------------------------------------------------------------------------------------------------------------------------------------ 20 29-AMPHITRI WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 10 S TE ------------------------------------------------------------------------------------------------------------------------------------ 30 29-AMPHITRI WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.6 S TE ------------------------------------------------------------------------------------------------------------------------------------ 40 29-AMPHITRI WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 40 S TE ------------------------------------------------------------------------------------------------------------------------------------ 50 29-AMPHITRI WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 40 S TE ------------------------------------------------------------------------------------------------------------------------------------ 80 29-AMPHITRI WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 0.6 S TE Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 29-AMPHITRI WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 10 S TE Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 29-AMPHITRI WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 5 S TE Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 110 29-AMPHITRI WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 4 S TE ------------------------------------------------------------------------------------------------------------------------------------ 120 29-AMPHITRI WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 10 S TE ------------------------------------------------------------------------------------------------------------------------------------ 130 29-AMPHITRI WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.6 S TE ------------------------------------------------------------------------------------------------------------------------------------ 140 29-AMPHITRI WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 80 S TE ------------------------------------------------------------------------------------------------------------------------------------ 150 29-AMPHITRI WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 80 S TE ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 12] Visit: 05 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 89-JULIA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 5 S SEQ 10-150 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 20 89-JULIA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 12 S ------------------------------------------------------------------------------------------------------------------------------------ 30 89-JULIA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.7 S ------------------------------------------------------------------------------------------------------------------------------------ 40 89-JULIA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 40 S ------------------------------------------------------------------------------------------------------------------------------------ 50 89-JULIA WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 40 S ------------------------------------------------------------------------------------------------------------------------------------ 80 89-JULIA WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 0.7 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 89-JULIA WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 12 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 89-JULIA WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 5 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 110 89-JULIA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 5 S ------------------------------------------------------------------------------------------------------------------------------------ 120 89-JULIA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 12 S ------------------------------------------------------------------------------------------------------------------------------------ 130 89-JULIA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 0.7 S ------------------------------------------------------------------------------------------------------------------------------------ 140 89-JULIA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 80 S ------------------------------------------------------------------------------------------------------------------------------------ 150 89-JULIA WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 80 S ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 13] Visit: 06 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 144-VIBILIA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 8 S SEQ 10-150 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 20 144-VIBILIA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 20 S ------------------------------------------------------------------------------------------------------------------------------------ 30 144-VIBILIA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 1.2 S ------------------------------------------------------------------------------------------------------------------------------------ 40 144-VIBILIA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 100 S ------------------------------------------------------------------------------------------------------------------------------------ 80 144-VIBILIA WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 1.2 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 144-VIBILIA WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 20 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 144-VIBILIA WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 8 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 110 144-VIBILIA WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 8 S ------------------------------------------------------------------------------------------------------------------------------------ 120 144-VIBILIA WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 20 S ------------------------------------------------------------------------------------------------------------------------------------ 130 144-VIBILIA WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 1.2 S ------------------------------------------------------------------------------------------------------------------------------------ 140 144-VIBILIA WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 140 S ------------------------------------------------------------------------------------------------------------------------------------ 150 144-VIBILIA WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 140 S ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 14] Visit: 07 Visit Requirements: On Hold Comments: Additional Comments: FAINT-ASTEROID SEQUENCE Could add a 14s F791W (exp 130) if merging and time allow. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 1220-CROCUS WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 100 S SEQ 10-90 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 20 1220-CROCUS WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 200 S ------------------------------------------------------------------------------------------------------------------------------------ 30 1220-CROCUS WFPC2 IMAGE PC1 F791W ATD-GAIN=15,READ=1 1 14 S ------------------------------------------------------------------------------------------------------------------------------------ 80 1220-CROCUS WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 14 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 1220-CROCUS WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 260 S Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 1220-CROCUS WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 160 S SEQ 100-120 NON-INT Comments: SATURATE TO SEARCH FOR SATELLITES. WILL HAVE TO MANUAL MERGE EXP 100-120 INTO THE SAME ALIGNMENT TO SAVE 1M OF TIME. ------------------------------------------------------------------------------------------------------------------------------------ 110 1220-CROCUS WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 100 S ------------------------------------------------------------------------------------------------------------------------------------ 120 1220-CROCUS WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 200 S ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 15] Visit: 08 Visit Requirements: On Hold Comments: Additional Comments: FAINT-ASTEROID SEQUENCE Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 54-ALEXANDR WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 8 S SEQ 10-90 NON-INT A ------------------------------------------------------------------------------------------------------------------------------------ 20 54-ALEXANDR WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 20 S A ------------------------------------------------------------------------------------------------------------------------------------ 40 54-ALEXANDR WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 100 S A ------------------------------------------------------------------------------------------------------------------------------------ 50 54-ALEXANDR WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 100 S A ------------------------------------------------------------------------------------------------------------------------------------ 60 54-ALEXANDR WFPC2 IMAGE PC1 F1042M ATD-GAIN=7 1 100 S A Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 70 54-ALEXANDR WFPC2 IMAGE PC1 F953N ATD-GAIN=7 1 100 S A Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 80 54-ALEXANDR WFPC2 IMAGE PC1 F791W ATD-GAIN=7 1 1.2 S A Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 90 54-ALEXANDR WFPC2 IMAGE PC1 F673N ATD-GAIN=7 1 20 S A Comments: SATURATE TO SEARCH FOR SATELLITES ------------------------------------------------------------------------------------------------------------------------------------ 100 54-ALEXANDR WFPC2 IMAGE PC1 F439W ATD-GAIN=7 1 8 S SEQ 100-150 NON-INT A Comments: SATURATE TO SEARCH FOR SATELLITES WILL HAVE TO MANUAL MERGE EXP 100-150 INTO THE SAME ALIGNMENT TO SAVE 1M OF TIME. ------------------------------------------------------------------------------------------------------------------------------------ 110 54-ALEXANDR WFPC2 IMAGE PC1 F439W ATD-GAIN=15,READ=1 1 8 S A ------------------------------------------------------------------------------------------------------------------------------------ 120 54-ALEXANDR WFPC2 IMAGE PC1 F673N ATD-GAIN=15,READ=1 1 20 S A ------------------------------------------------------------------------------------------------------------------------------------ 140 54-ALEXANDR WFPC2 IMAGE PC1 F953N ATD-GAIN=15,READ=1 1 100 S A ------------------------------------------------------------------------------------------------------------------------------------ 150 54-ALEXANDR WFPC2 IMAGE PC1 F1042M ATD-GAIN=15,READ=1 1 100 S A ------------------------------------------------------------------------------------------------------------------------------------ 6559( 7) - 03/05/97 12:30 - [ 16] Summary Form for Proposal 6559 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ATD-GAIN=15 READ=1 ATD-GAIN=7 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category SOLAR SYSTEM ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SEQ 10-150 NON-INT SEQ 10-130 NON-INT SEQ 10-90 NON-INT SEQ 100-120 NON-INT SEQ 100-150 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F439W F673N F791W F953N F1042M ------------------------------------------------------------------------------------------------------------------------------------ Target Names 8-FLORA 11-PARTHENOPE 10-HYGIEA 29-AMPHITRITE 89-JULIA 144-VIBILIA 1220-CROCUS 54-ALEXANDRA ------------------------------------------------------------------------------------------------------------------------------------