9821( 3) - 05/16/03 09:13 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 9821 Version: 3 Check-in Date: 16-May-2003 09:10:39 1.Proposal Title: The Second Parameter Effect in Metal-Rich Globular Clusters: A Snapshot Study of NGC 6388 ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle SNAP 12 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Dr. Barton J. Pritzl National Optical Astronomy Observatories, AURA CoI: Dr. Horace A. Smith Michigan State University N CoI: Prof. M?rcio Catelan Pontificia Universidad Cat?lica de Chile N CoI: Dr. Allen V. Sweigart NASA Goddard Space Flight Center N CoI: Dr. Andrew C. Layden Bowling Green State University N CoI: Dr. R. Michael Rich University of California - Los Angeles N CoI: Dr. Peter B. Stetson Dominion Astrophysical Observatory N CoI: Ms. Karen Kinemuchi Michigan State University N ------------------------------------------------------------------------------------ 5. Abstract While it has long been known that at least one parameter besides the metallicity, [Fe/H], determines the horizontal branch (HB) morphology of Galactic globular clusters (GCs), our ignorance as to the nature of this second parameter (or parameters) has been a major stumbling block in understanding the formation history and age of the GC system. The hot HB populations recently discovered by HST in the metal-rich GCs NGC 6388 and NGC 6441 provide a unique opportunity for unraveling this second-parameter effect. Many different theories have been proposed to explain the pronounced upward slope of the HBs in these GCs, including stellar rotation, metallicity spread, and a dwarf galaxy origin. We propose to test these theories by obtaining B, V, I time-series photometry of the RR Lyrae variables in the core of NGC 6388 in order to determine whether, as predicted, the pulsation periods are unusually long due to a high HB luminosity. If confirmed, this would argue against age or mass loss as the second parameter in NGC 6388 and, more generally, would have implications for the use of RR Lyrae stars as standard candles for determining GC distances and ages. Light curves will also be obtained for the crowded Population II Cepheids near the core of NGC 6388, the most metal-rich GC, along with NGC 6441, known to contain such stars. We waive proprietary rights to any data obtained. ------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 2] Observations Description ------------------------ We plan to observe the globular cluster NGC 6388 though the Hubble Space Telescope snapshot program to detect variable stars within the crowded inner regions. Twenty visits to the cluster with the ACS/WFC will be necessary to determine accurate periods, to allow for good phase coverage, and reduce aliassing. For each visit, observations will be taken in F435W, F555W, and F814W, with the three exposures necessarily being taken during the same orbit. The exposures are sufficiently short and the pointing requirements sufficiently broad that pointing and guiding can be done with gyros only. Our longest exposure is 11 sec resulting in a drift of 0.02 arcsec. A tolerance of 0.05 arcsec is listed in case the drift rate may increase. Images should be positioned so as to approximately center the cluster on the ACS/WFC, so that there would be a high probability of repeated imaging the stars of the cluster core, even if snapshot exposures were obtained with differing orientations. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 STELLAR CLUSTER, RA=17H36M17.05S +/- 0.1", DEC=- J2000 V = 16.85+/-0.05 GLOBULAR CLUSTER 44D44'5.8" +/- 0.1" Coordinate Source: Other_Source: Simbad Comments: V-Magnitude is the level of the horizontal branch in the cluster. 9821( 3) - 05/16/03 09:13 - [ 4] Visit: 01 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 5] Visit: 02 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 6] Visit: 03 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 7] Visit: 04 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 8] Visit: 05 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 9] Visit: 06 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 10] Visit: 07 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 11] Visit: 08 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 12] Visit: 09 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 13] Visit: 10 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 14] Visit: 11 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 15] Visit: 12 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 16] Visit: 13 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 17] Visit: 14 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 18] Visit: 15 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 19] Visit: 16 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 20] Visit: 17 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 21] Visit: 18 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 22] Visit: 19 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 23] Visit: 20 Visit Priority: M Visit Requirements: PCS MODE GYRO GUID TOL 0.05" SCHED 30% 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6388 ACS/WF ACCUM WFC F435W CR-SPLIT=NO 1 11 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC6388 ACS/WF ACCUM WFC F555W CR-SPLIT=NO 1 7 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC6388 ACS/WF ACCUM WFC F814W CR-SPLIT=NO 1 3 S C ------------------------------------------------------------------------------------------------------------------------------------ 9821( 3) - 05/16/03 09:13 - [ 24] Summary Form for Proposal 9821 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category SNAP ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE GYRO GUID TOL 0.05" SCHED 30% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F435W F555W F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC6388 ------------------------------------------------------------------------------------------------------------------------------------