7929( 5) - 02/09/99 09:22 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 7929 Version: 5 Check-in Date: 09-Feb-1999 09:21:58 1.Proposal Title: Cycle 7 WFPC2 CTE Monitor ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle CAL/WF2 7 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Stefano Casertano Space Telescope Science Institute CoI: Brad Whitmore STScI N ------------------------------------------------------------------------------------ 5. Abstract Monitor CTE changes during cycle 7 every 6 months. ------------------------------------------------------------------------------------ Observations Description ------------------------ Observations of Omega Centauri (NGC5139) are taken every 6 months during cycle 7 to monitor changes in Charge Transfer Efficiency (CTE) of the WFPC2. The principal observations will be in F814W at gain 15 in WF2 and WF4. Supplemental observations at gain 7, and in the WF3 will be performed if time permits, along with observations in F439W and F555W. For each visit, observations will be done in single guide star mode. FOR EACH VISIT, PLEASE USE THE SAME GUIDE STAR FOR THE SMALL ANGLE MANEUVERS BETWEEN THE CHIPS. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Paper Products: Media: ELECTRONIC Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: ------------------------------------------------------------------------------------ 7929( 5) - 02/09/99 09:22 - [ 2] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5139 CALIBRATION, RA=13H 25M 37.04S +/- 0.100S, J2000 V = 19 PHOTOMETRIC DEC= -47D 35' 38.3" +/- 1.00", PLATE-ID=ZZZR 2 NGC5139-POS2 CALIBRATION, RA=13H 25M 36.65S +/- 0.100S, J2000 V = 19 PHOTOMETRIC DEC= -47D 35' 45.0" +/- 1.00", PLATE-ID=ZZZR Comments: Chosen by Whitmore, position is btwn Harris stars #1629 and #903. 7929( 5) - 02/09/99 09:22 - [ 3] Visit: 01 Visit Priority: Visit Requirements: BETWEEN 1-MAR-98 AND 30-MAR-98 On Hold Comments: Additional Comments: SINGLE GUIDE STAR MODE. USE SAME GUIDE STAR THROUGHOUT VISIT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5139 WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 14 S ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5139 WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 100 S ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5139 WFPC2 IMAGE WF2 F814W ATD-GAIN=7 1 14 S ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5139 WFPC2 IMAGE WF2 F439W ATD-GAIN=15 1 80 S ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5139 WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 16 S ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5139 WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 14 S ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5139 WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 100 S ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC5139 WFPC2 IMAGE WF3 F555W ATD-GAIN=15 1 16 S ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5139 WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 14 S ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5139 WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 100 S ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC5139 WFPC2 IMAGE WF4 F814W ATD-GAIN=7 1 14 S ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC5139 WFPC2 IMAGE WF4 F439W ATD-GAIN=15 1 80 S ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC5139 WFPC2 IMAGE WF4 F555W ATD-GAIN=15 1 16 S ------------------------------------------------------------------------------------------------------------------------------------ 7929( 5) - 02/09/99 09:22 - [ 4] Visit: 02 Visit Priority: Visit Requirements: BETWEEN 1-AUG-98 AND 30-SEP-98 On Hold Comments: Additional Comments: SINGLE GUIDE STAR MODE. USE SAME GUIDE STAR THROUGHOUT VISIT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=7 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5139-POS WFPC2 IMAGE WF2 F439W ATD-GAIN=15 1 80 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5139-POS WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5139-POS WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 2 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5139-POS WFPC2 IMAGE WF3 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 8 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=7 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 15 NGC5139-POS WFPC2 IMAGE WF4 F439W ATD-GAIN=15 1 80 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 16 NGC5139-POS WFPC2 IMAGE WF4 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 7929( 5) - 02/09/99 09:22 - [ 5] Visit: 03 Visit Priority: Visit Requirements: BETWEEN 1-FEB-99 AND 30-MAR-99 On Hold Comments: Additional Comments: SINGLE GUIDE STAR MODE. USE SAME GUIDE STAR THROUGHOUT VISIT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=7 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5139-POS WFPC2 IMAGE WF2 F439W ATD-GAIN=15 1 80 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5139-POS WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5139-POS WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 2 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5139-POS WFPC2 IMAGE WF3 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 8 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=7 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 15 NGC5139-POS WFPC2 IMAGE WF4 F439W ATD-GAIN=15 1 80 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 16 NGC5139-POS WFPC2 IMAGE WF4 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 7929( 5) - 02/09/99 09:22 - [ 6] Visit: 04 Visit Priority: Visit Requirements: BETWEEN 1-AUG-99 AND 1-OCT-99 On Hold Comments: Additional Comments: SINGLE GUIDE STAR MODE. USE SAME GUIDE STAR THROUGHOUT VISIT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5139-POS WFPC2 IMAGE WF2 F814W ATD-GAIN=7 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5139-POS WFPC2 IMAGE WF2 F439W ATD-GAIN=15 1 80 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5139-POS WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5139-POS WFPC2 IMAGE WF2 F555W ATD-GAIN=15 1 2 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5139-POS WFPC2 IMAGE WF3 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5139-POS WFPC2 IMAGE WF3 F814W ATD-GAIN=15 1 8 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=15 1 100 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC5139-POS WFPC2 IMAGE WF4 F814W ATD-GAIN=7 1 14 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 15 NGC5139-POS WFPC2 IMAGE WF4 F439W ATD-GAIN=15 1 80 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 16 NGC5139-POS WFPC2 IMAGE WF4 F555W ATD-GAIN=15 1 16 S 2 ------------------------------------------------------------------------------------------------------------------------------------ 7929( 5) - 02/09/99 09:22 - [ 7] Summary Form for Proposal 7929 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WF2 WF3 WF4 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ATD-GAIN=15 ATD-GAIN=7 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category CAL/WF2 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 1-MAR-98 AND 30-MAR-98 BETWEEN 1-AUG-98 AND 30-SEP-98 BETWEEN 1-FEB-99 AND 30-MAR-99 BETWEEN 1-AUG-99 AND 1-OCT-99 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F814W F439W F555W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC5139 NGC5139-POS2 ------------------------------------------------------------------------------------------------------------------------------------