6256( 5) - 02/11/97 16:07 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6256 Version: 5 Check-in Date: 11-Feb-1997 16:01:18 1.Proposal Title: Deep Photometry of the Globular Cluster M80 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Stellar Populations GTO/OS 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Ivan R. King University of California CoI: Adrienne M. Cool University of California, Berkeley N CoI: Craig Sosin University of California, Berkeley N CoI: Jay Anderson University of California, Berkeley N CoI: Giampaolo Piotto University of Padua N ------------------------------------------------------------------------------------ 6. Abstract A faint (V,I) color-magnitude diagram and luminosity function will be determined for the globular cluster M80 (NGC 6093). The PC will be on the cluster center; all 4 chips will be used. The photometry will reach at least to V = 26. ------------------------------------------------------------------------------------ Observations Description ------------------------ The program takes 9 orbits. Of these, 3 1/2 use F606W and 4 use F814W. Each of these orbits has two long exposures (the half orbit having only 1), and some shorter exposures are thrown in, to deal with stars that saturate in the longer exposures. F439W is used for 1/2 orbit and F336W for 1 orbit. Real Time Justification ----------------------- N. A. Calibration Justification ------------------------- N. A. Additional Comments ------------------- The whole program can be taken on a single GSACQ. The PC is aware that there is a 9-orbit visit and believes it is OK. See visit-level comment. ------------------------------------------------------------------------------------ 6256( 5) - 02/11/97 16:07 - [ 2] Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: ------------------------------------------------------------------------------------ 6256( 5) - 02/11/97 16:07 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC6093 STELLAR CLUSTER, RA=16H 17M 02.5S +/- 0.1S, DEC=- 2000.0 V = 7.3 GLOBULAR CLUSTER 22D 58' 30" +/- 1" B-V = 0.84 Comments: Apparent distance modulus 15.2 6256( 5) - 02/11/97 16:07 - [ 4] Visit: 01 Visit Requirements: ON HOLD On Hold Comments: This proposal is a replacement for proposal 6255, which uses FOC/48. If 6255 is able to be executed, the present proposal will be withdrawn. Additional Comments: The PC believes that this 9-orbit visit is OK. If this is not possible, then orbit 9 should be made a separate visit and the exposures in lines 91, 93, and 94 should be shortened accordingly. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC6093 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO,ATD-GAIN=7 1 160 S ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC6093 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO,ATD-GAIN=7 1 160 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC6093 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO,ATD-GAIN=7 1 20 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 160 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 15 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1400 S SAME POS AS 11 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 21 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1200 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 22 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 20 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 23 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1100 S SAME POS AS 11 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 31 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1200 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 32 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 20 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 33 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1100 S SAME POS AS 11 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 41 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1000 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 42 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 160 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 43 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1200 S SAME POS AS 11 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 51 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1200 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 52 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 20 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 53 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1100 S SAME POS AS 11 POS TARG 0.498,0.498 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 61 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1100 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 62 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 160 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 6256( 5) - 02/11/97 16:07 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 63 NGC6093 WFPC2 IMAGE PC1-FIX F814W CR-SPLIT=NO,ATD-GAIN=7 1 1100 S SAME POS AS 11 POS TARG 0.498,0.498 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 71 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1200 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 72 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 20 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 73 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1100 S SAME POS AS 11 POS TARG 0.498,0.498 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 81 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1000 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 82 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 160 S SAME POS AS 11 POS TARG 0.498,0.498 ------------------------------------------------------------------------------------------------------------------------------------ 83 NGC6093 WFPC2 IMAGE PC1-FIX F606W CR-SPLIT=NO,ATD-GAIN=7 1 1200 S SAME POS AS 11 POS TARG 0.498,0.498 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 91 NGC6093 WFPC2 IMAGE PC1-FIX F336W CR-SPLIT=NO,ATD-GAIN=7 1 700 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 92 NGC6093 WFPC2 IMAGE PC1-FIX F336W CR-SPLIT=NO,ATD-GAIN=7 1 80 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 93 NGC6093 WFPC2 IMAGE PC1-FIX F336W CR-SPLIT=NO,ATD-GAIN=7 1 700 S SAME POS AS 11 ------------------------------------------------------------------------------------------------------------------------------------ 94 NGC6093 WFPC2 IMAGE PC1-FIX F336W CR-SPLIT=NO,ATD-GAIN=7 1 800 S SAME POS AS 11 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 6256( 5) - 02/11/97 16:07 - [ 6] Summary Form for Proposal 6256 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ATD-GAIN=7 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/OS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Stellar Populations ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ON HOLD SAME POS AS 11 SAME POS AS 11 END ORBIT SAME POS AS 11 POS TARG 0.498,0.498 SAME POS AS 11 POS TARG 0.498,0.498 END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F439W F606W F814W F336W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC6093 ------------------------------------------------------------------------------------------------------------------------------------