Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5558 Report Date: 18-Jul-95:17:38 Version: ********** Check-in Date: ********** 1.Proposal Title: WFPC2 OBSERVATIONS TO MONITOR OTA DESORPTION ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/OTA Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone H. Hasan ST SCI ------------------------------------------------------------------------------------ 7. Abstract This proposal will perform WFPC2 observations through filter F555W, to monitor focus stability of the HST OTA FOCAL Plane. A crowded field in Omega Cen will be observed. The first execution will be six to eight weeks after launch. The test may be repeated every eight weeks, should the need arise. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 0 10. Num targs pri: 0 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5558 PI: H. Hasan Proposal Title: WFPC2 OBSERVATIONS TO MONITOR OTA DESORPTION ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Hashima Hasan ST SCI USA C. Burrows ESA/ST SCI USA X ------------------------------------------------------------------------------------ 3. Description of proposed observations. A set of up to 10 images will be taken using the WFPC2 with filter F555W over one orbital period. The test may need to be repeated, should the need arise. The target will be field in Omega Cen. The number of images can be reduced if observation exceeds one orbit. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. The observations will provide data useful in assessing the HST OTA Focal plane desorption as well as OTA breathing. ------------------------------------------------------------------------------------ 11. Address Information Name: HASHIMA HASAN Category: PI Institution: ST SCI Address: 3700 SAN MARTIN DR City: BALTIMORE State: MD Zip Code: 21218 Country: Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ Name: C. BURROWS Category: CON Institution: ESA Address: 3700 SAN MARTIN DR City: BALTIMORE State: MD Zip Code: 21218 Country: Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 5558 [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 OMEGA-CEN J,702 RA = 13H 25M 37.04S +/- 2000 1 V=14.5 0.1S, DEC = -47D 35' 38.3" +/- 1.0" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5558 [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 OMEGA-CEN WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 10 30S 1 CYCLE 4 CLEAR=YES Comments: DUMP THE STR BEFORE STARTING THIS SEQUENCE OF EXPOSURES. DECREASE NUM_EXP IF OBSERVATION IF OBSERVATION EXCEEDS 1 ORBIT ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5558 [ 5] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO CLEAR=YES ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/OTA ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 4; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W ------------------------------------------------------------------------------------------------------------------------------------ Target Names OMEGA-CEN ------------------------------------------------------------------------------------------------------------------------------------