10423( 6) - 03/08/05 12:08 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 10423 Version: 6 Check-in Date: 08-Mar-2005 17:06:49 1.Proposal Title: Imaging of Neptune's Evolving Atmosphere ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle 4. Parallel Pointing Tolerance GO 13 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Dr. Heidi B. Hammel Space Science Institute CoI: Dr. Erich Karkoschka University of Arizona N ------------------------------------------------------------------------------------ 6. Abstract Neptune's disk-integrated reflectivity flux has risen steadily over the past decade, and has now reached unprecedented levels. Near-IR images of Neptune made with the Keck AO system in late 2003 show that the amount and distribution of cloud activity is also unprecedented. In 1994, HST images suggested that increased cloud activity on the disk was correlated with the formation of a new northern Great Dark Spot (GDS) and the dissipation of the Voyager GDS. Great Dark Spots are only detectable with HST blue-wavelength images. In Cycle 12, no ACS or WFPC2 images of Neptune were obtained, and exactly two STIS Neptune images were obtained (broad-band only). The observations proposed here will reveal the visible-wavelength component of the banded structure, and also show whether the unusual activity is linked to the evolution of one or more Great Dark Spots. ------------------------------------------------------------------------------------ 10423( 6) - 03/08/05 12:08 - [ 2] Observations Description ------------------------ Longitudinal Coverage: To fully map Neptune in longitude, four samples are required separated in time by 4-5 hours (i.e., every third orbit). This spacing yields images at about roughly a quarter of the planet's atmospheric rotation period (~18 hours on average). Camera and Filter Selection: We propose to use ACS/HRC. Our filter selection and observing strategy are designed to elucidate the vertical and horizontal aerosol distribution in Neptune's troposphere and lower stratosphere. Filter choices and the observing sequence are based on our experience with WFPC2 images of Neptune and ACS/HRC images of Uranus. We use 11 filters once during each of our four visits in order to record discrete features. Our remaining three filters are expected to primarly record zonal features and thus we only use them once or twice. Exposure times and order of exposures are adjusted to maximize efficiency. Our exposure times are expected to generally yield 50, 000-100, 000 detected photons per pixel for the brightest features. For filters that cannot reach these signal levels in less than 240 seconds, we set exposure times at 240 seconds to limit rotational smear and cosmic rays. Real Time Justification ----------------------- We request that the four visits be separated by 4-5 hours (three orbits), corresponding to just over 90 degrees rotation of Neptune; this ensures adequate longitudinal coverage for vertical aerosol measurements of discrete features. If the SAA interferes with the temporal sampling, the last exposures of each visit may be delayed into the following orbit. We hope that our observations can be scheduled within four months of opposition (August 8, 2005) in order to maximize the apparent diameter of Neptune. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 10423( 6) - 03/08/05 12:08 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 | TARGET NAME: NEPTUNE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET NEPTUNE ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=NEPTUNE | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ DATA | COMMENTS | V = 8.0 | | ------------------------------------------------------------------------------------------------------------------------------------ 10423( 6) - 03/08/05 12:08 - [ 4] Visit: 01 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 30%; BETWEEN 08-APR-2005:00:00:00 AND 08-DEC- 2005:00:00:00 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE ACS/HRC ACCUM HRC-FIX F658N GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1; SEQ 1-10 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE ACS/HRC ACCUM HRC-FIX F475W GAIN=4,CR-SPLIT=NO 1 45 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 NEPTUNE ACS/HRC ACCUM HRC-FIX F775W GAIN=4,CR-SPLIT=NO 1 80 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NEPTUNE ACS/HRC ACCUM HRC-FIX F625W GAIN=4,CR-SPLIT=NO 1 50 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5 NEPTUNE ACS/HRC ACCUM HRC-FIX F550M GAIN=4,CR-SPLIT=NO 1 110 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 6 NEPTUNE ACS/HRC ACCUM HRC-FIX F850LP GAIN=4,CR-SPLIT=NO 1 150 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 7 NEPTUNE ACS/HRC ACCUM HRC-FIX F892N GAIN=2,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 8 NEPTUNE ACS/HRC ACCUM HRC-FIX F814W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 9 NEPTUNE ACS/HRC ACCUM HRC-FIX F435W GAIN=4,CR-SPLIT=NO 1 90 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 10 NEPTUNE ACS/HRC ACCUM HRC-FIX F250W GAIN=2,CR-SPLIT=NO 1 130 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 11 NEPTUNE ACS/HRC ACCUM HRC-FIX F330W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 12 NEPTUNE ACS/HRC ACCUM HRC-FIX FR914M 8828 GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 ACS/HRC ACCUM HRC-FIX F658N none none none none 1 N/A NEPTUNE 2 ACS/HRC ACCUM HRC-FIX F475W none none none none 1 N/A NEPTUNE 3 ACS/HRC ACCUM HRC-FIX F775W none none none none 1 N/A NEPTUNE 4 ACS/HRC ACCUM HRC-FIX F625W none none none none 1 N/A NEPTUNE 5 ACS/HRC ACCUM HRC-FIX F550M none none none none 1 N/A NEPTUNE 6 ACS/HRC ACCUM HRC-FIX F850LP none none none none 1 N/A NEPTUNE 7 ACS/HRC ACCUM HRC-FIX F892N none none none none 1 N/A NEPTUNE 8 ACS/HRC ACCUM HRC-FIX F814W none none none none 1 N/A NEPTUNE 9 ACS/HRC ACCUM HRC-FIX F435W none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 5] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 10 ACS/HRC ACCUM HRC-FIX F250W none none none none 1 N/A NEPTUNE 11 ACS/HRC ACCUM HRC-FIX F330W none none none none 2 N/A NEPTUNE 12 ACS/HRC ACCUM HRC-FIX FR914M 8828 none none none none 2 N/A 10423( 6) - 03/08/05 12:08 - [ 6] Visit: 02 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 30%; AFTER 01 BY 16000 S TO 18000 S On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE ACS/HRC ACCUM HRC-FIX F658N GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1; SEQ 1-7 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE ACS/HRC ACCUM HRC-FIX F475W GAIN=4,CR-SPLIT=NO 1 45 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 NEPTUNE ACS/HRC ACCUM HRC-FIX F775W GAIN=4,CR-SPLIT=NO 1 80 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NEPTUNE ACS/HRC ACCUM HRC-FIX F625W GAIN=4,CR-SPLIT=NO 1 50 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5 NEPTUNE ACS/HRC ACCUM HRC-FIX F550M GAIN=4,CR-SPLIT=NO 1 110 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 6 NEPTUNE ACS/HRC ACCUM HRC-FIX F850LP GAIN=4,CR-SPLIT=NO 1 150 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 7 NEPTUNE ACS/HRC ACCUM HRC-FIX F892N GAIN=2,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 8 NEPTUNE ACS/HRC ACCUM HRC-FIX F814W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 9 NEPTUNE ACS/HRC ACCUM HRC-FIX F435W GAIN=4,CR-SPLIT=NO 1 90 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 10 NEPTUNE ACS/HRC ACCUM HRC-FIX F330W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 11 NEPTUNE ACS/HRC ACCUM HRC-FIX FR914M 8201 GAIN=4,CR-SPLIT=NO 1 140 S POS TARG 0,-1 ------------------------------------------------------------------------------------------------------------------------------------ 12 NEPTUNE ACS/HRC ACCUM HRC-FIX FR914M 8828 GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 ACS/HRC ACCUM HRC-FIX F658N none none none none 1 N/A NEPTUNE 2 ACS/HRC ACCUM HRC-FIX F475W none none none none 1 N/A NEPTUNE 3 ACS/HRC ACCUM HRC-FIX F775W none none none none 1 N/A NEPTUNE 4 ACS/HRC ACCUM HRC-FIX F625W none none none none 1 N/A NEPTUNE 5 ACS/HRC ACCUM HRC-FIX F550M none none none none 1 N/A NEPTUNE 6 ACS/HRC ACCUM HRC-FIX F850LP none none none none 1 N/A NEPTUNE 7 ACS/HRC ACCUM HRC-FIX F892N none none none none 1 N/A NEPTUNE 8 ACS/HRC ACCUM HRC-FIX F814W none none none none 1 N/A NEPTUNE 9 ACS/HRC ACCUM HRC-FIX F435W none none none none 1 N/A NEPTUNE 10 ACS/HRC ACCUM HRC-FIX F330W none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 7] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 11 ACS/HRC ACCUM HRC-FIX FR914M 8201 none none none none 1 N/A NEPTUNE 12 ACS/HRC ACCUM HRC-FIX FR914M 8828 none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 8] Visit: 03 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 30%; AFTER 02 BY 16000 S TO 18000 S On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE ACS/HRC ACCUM HRC-FIX F502N GAIN=4,CR-SPLIT=NO 1 130 S POS TARG 0,-1; SEQ 1-12 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE ACS/HRC ACCUM HRC-FIX F658N GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 NEPTUNE ACS/HRC ACCUM HRC-FIX F475W GAIN=4,CR-SPLIT=NO 1 45 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NEPTUNE ACS/HRC ACCUM HRC-FIX F775W GAIN=4,CR-SPLIT=NO 1 80 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5 NEPTUNE ACS/HRC ACCUM HRC-FIX F625W GAIN=4,CR-SPLIT=NO 1 50 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 6 NEPTUNE ACS/HRC ACCUM HRC-FIX F550M GAIN=4,CR-SPLIT=NO 1 110 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 7 NEPTUNE ACS/HRC ACCUM HRC-FIX F850LP GAIN=4,CR-SPLIT=NO 1 150 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 8 NEPTUNE ACS/HRC ACCUM HRC-FIX F892N GAIN=2,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 9 NEPTUNE ACS/HRC ACCUM HRC-FIX F814W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 10 NEPTUNE ACS/HRC ACCUM HRC-FIX F435W GAIN=4,CR-SPLIT=NO 1 90 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 11 NEPTUNE ACS/HRC ACCUM HRC-FIX F330W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 12 NEPTUNE ACS/HRC ACCUM HRC-FIX FR914M 8828 GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 ACS/HRC ACCUM HRC-FIX F502N none none none none 1 N/A NEPTUNE 2 ACS/HRC ACCUM HRC-FIX F658N none none none none 1 N/A NEPTUNE 3 ACS/HRC ACCUM HRC-FIX F475W none none none none 1 N/A NEPTUNE 4 ACS/HRC ACCUM HRC-FIX F775W none none none none 1 N/A NEPTUNE 5 ACS/HRC ACCUM HRC-FIX F625W none none none none 1 N/A NEPTUNE 6 ACS/HRC ACCUM HRC-FIX F550M none none none none 1 N/A NEPTUNE 7 ACS/HRC ACCUM HRC-FIX F850LP none none none none 1 N/A NEPTUNE 8 ACS/HRC ACCUM HRC-FIX F892N none none none none 1 N/A NEPTUNE 9 ACS/HRC ACCUM HRC-FIX F814W none none none none 1 N/A NEPTUNE 10 ACS/HRC ACCUM HRC-FIX F435W none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 9] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 11 ACS/HRC ACCUM HRC-FIX F330W none none none none 1 N/A NEPTUNE 12 ACS/HRC ACCUM HRC-FIX FR914M 8828 none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 10] Visit: 04 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 30%; AFTER 03 BY 16000 S TO 18000 S On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NEPTUNE ACS/HRC ACCUM HRC-FIX F658N GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1; SEQ 1-7 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 NEPTUNE ACS/HRC ACCUM HRC-FIX F475W GAIN=4,CR-SPLIT=NO 1 45 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 NEPTUNE ACS/HRC ACCUM HRC-FIX F775W GAIN=4,CR-SPLIT=NO 1 80 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NEPTUNE ACS/HRC ACCUM HRC-FIX F625W GAIN=4,CR-SPLIT=NO 1 50 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 5 NEPTUNE ACS/HRC ACCUM HRC-FIX F550M GAIN=4,CR-SPLIT=NO 1 110 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 6 NEPTUNE ACS/HRC ACCUM HRC-FIX F850LP GAIN=4,CR-SPLIT=NO 1 150 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 7 NEPTUNE ACS/HRC ACCUM HRC-FIX F892N GAIN=2,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 8 NEPTUNE ACS/HRC ACCUM HRC-FIX F814W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 9 NEPTUNE ACS/HRC ACCUM HRC-FIX F435W GAIN=4,CR-SPLIT=NO 1 90 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 10 NEPTUNE ACS/HRC ACCUM HRC-FIX F330W GAIN=4,CR-SPLIT=NO 1 240 S SAME POS AS 1 ------------------------------------------------------------------------------------------------------------------------------------ 11 NEPTUNE ACS/HRC ACCUM HRC-FIX FR914M 8201 GAIN=4,CR-SPLIT=NO 1 140 S POS TARG 0,-1 ------------------------------------------------------------------------------------------------------------------------------------ 12 NEPTUNE ACS/HRC ACCUM HRC-FIX FR914M 8828 GAIN=4,CR-SPLIT=NO 1 240 S POS TARG 0,-1 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 1 ACS/HRC ACCUM HRC-FIX F658N none none none none 1 N/A NEPTUNE 2 ACS/HRC ACCUM HRC-FIX F475W none none none none 1 N/A NEPTUNE 3 ACS/HRC ACCUM HRC-FIX F775W none none none none 1 N/A NEPTUNE 4 ACS/HRC ACCUM HRC-FIX F625W none none none none 1 N/A NEPTUNE 5 ACS/HRC ACCUM HRC-FIX F550M none none none none 1 N/A NEPTUNE 6 ACS/HRC ACCUM HRC-FIX F850LP none none none none 1 N/A NEPTUNE 7 ACS/HRC ACCUM HRC-FIX F892N none none none none 1 N/A NEPTUNE 8 ACS/HRC ACCUM HRC-FIX F814W none none none none 1 N/A NEPTUNE 9 ACS/HRC ACCUM HRC-FIX F435W none none none none 1 N/A NEPTUNE 10 ACS/HRC ACCUM HRC-FIX F330W none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 11] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NEPTUNE 11 ACS/HRC ACCUM HRC-FIX FR914M 8201 none none none none 1 N/A NEPTUNE 12 ACS/HRC ACCUM HRC-FIX FR914M 8828 none none none none 1 N/A 10423( 6) - 03/08/05 12:08 - [ 12] Summary Form for Proposal 10423 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures HRC-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/HRC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters GAIN=4 CR-SPLIT=NO GAIN=2 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE FINE; SCHED 30%; BETWEEN 08-APR-2005 00 00 00 AND 08-DEC-2005 00 00 00 POS TARG 0,-1; SEQ 1-10 NON-INT SAME POS AS 1 POS TARG 0,-1 PCS MODE FINE; SCHED 30%; AFTER 01 BY 16000 S TO 18000 S POS TARG 0,-1; SEQ 1-7 NON-INT PCS MODE FINE; SCHED 30%; AFTER 02 BY 16000 S TO 18000 S POS TARG 0,-1; SEQ 1-12 NON-INT PCS MODE FINE; SCHED 30%; AFTER 03 BY 16000 S TO 18000 S ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F658N F475W F775W F625W F550M F850LP F892N F814W F435W F250W F330W FR914M F502N ------------------------------------------------------------------------------------------------------------------------------------ Target Names NEPTUNE ------------------------------------------------------------------------------------------------------------------------------------ Wavelengths 8828 8201 ------------------------------------------------------------------------------------------------------------------------------------