6252( 0) - 07/18/95 21:32 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6252 Version: ********** Check-in Date: ********** 1.Proposal Title: GTO PURE PARALLEL PROGRAM - CYCLE 4 CRAFTING TEST ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Galaxies & Clusters GTO/OS 4 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Edward J. Groth Princeton University CoI: JAMES WESTPHAL CALIFORNIA INSTITUTE OF TECHNOLOGY N CoI: ROBERT BLESS UNIVERSITY OF WISCONSIN N CoI: JOHN BRANDT UNIVERSITY OF COLORADO N CoI: RICHARD HARMS APPLIED RESEARCH CORPORATION N CoI: WILLIAM JEFFERYS UNIVERSITY OF TEXAS N CoI: F MACCHETTO SPACE TELESCOPE SCIENCE INSTITUTE N CoI: C O'DELL RICE UNIVERSITY N CoI: JOHN TRAUGER JPL N ------------------------------------------------------------------------------------ 6. Abstract The parallel program described here provides a random sample of galaxies in a large number of high latitude fields. Galactic star counts and the structure of the galactic halo will also be studied. The proposed exposures utilize the WFPC2 in parallel mode when another instrument is prime at high galactic latitude. The expectation is that these fields will represent a fair sample of the universe and the Galactic halo. This is a continuation of proposal 4849 into cycle 4. It is more or less identical except cycle 4 => cycle 5. ------------------------------------------------------------------------------------ 6252( 0) - 07/18/95 21:32 - [ 2] Observations Description ------------------------ A set of sequences is constructed to fit within exposure opportunities of varying lengths, beginning with single orbit exposures. On long exposure opportunities, the aim is to obtain very deep images of galaxies by concentrating on the F814W and F606W filters. This is a parallel program designed to increase the scientific productivity of the HST by acquiring data relevant for studying distant galaxies and the Galactic halo when the HST is busy but the WFPC is not. The exposure time is determined by the primary exposure time and the ability of the planning and scheduling system to match parallel exposures to primary exposures. Enough exposures are included to provide good chances for matches. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6252( 0) - 07/18/95 21:32 - [ 3] TARGET LIST c)Generic Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria | Flux data No | Name | Description | | ------------------------------------------------------------------------------------------------------------------------------------ PAR CLUSTER OF GALAXIES ABS_BII > 10D ------------------------------------------------------------------------------------------------------------------------------------ 6252( 0) - 07/18/95 21:32 - [ 4] Visit: 01 Visit Requirements: PARallel On Hold Comments: Additional Comments: pure parallel Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 PAR WFPC2 IMAGE WFALL F814W 1 1200S ------------------------------------------------------------------------------------------------------------------------------------ 6252( 0) - 07/18/95 21:32 - [ 5] Summary Form for Proposal 6252 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/OS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Galaxies & Clusters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PARallel ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names PAR ------------------------------------------------------------------------------------------------------------------------------------