Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 2198c Report Date: 09-May-96:16:57 Version: ********** Check-in Date: ********** 1.Proposal Title: GST5 FOS DARK AND SKY BACKGROUNDS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID GST/FOS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Richard Harms APPLIED RESEARCH CORPORATION USA 301-459-8442 ------------------------------------------------------------------------------------ 7. Abstract Measurements of the background, both internal (dark) and external (sky), will be obtained with the FOS when other SIs are prime. The sky data will be obtained at high galactic latitude, low galactic latitude, and in the ecliptic plane, to determine if there are any differences in the sky spectrum. These observations will allow us to determine when sky measurements will be required for science data. The dark measurements will be obtained with a variety of SIs prime, to test for any EMI problems, and during SAA passages, to determine if science observations are possible during this period. Some sky observations will be read from two different portions of the photocathode, to check if the dark count is position dependent. If it is not, then normal science dark measurements can be obtained by changing the y-base, rather than closing the entrance aperture, thus allowing for more efficient observing. This observation is a modified version of proposal 1316 to supply fixed target pointings for generic targets for use in GST5. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 220.0 10. Num targs pri: 0 par: 60 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 2198c PI: Richard Harms Proposal Title: GST5 FOS DARK AND SKY BACKGROUNDS ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Roger Angel UNIVERSITY OF ARIZONA USA Bruce Margon UNIVERSITY OF WASHINGTON USA Frank Bartko MARTIN MARIETTA CORPORATION USA Arthur Davidsen JOHNS HOPKINS UNIVERSITY USA Pi Richard Harms APPLIED RESEARCH CORPORATION USA Ralph Bohlin SPACE TELESCOPE SCIENCE USA INSTITUTE Holland Ford SPACE TELESCOPE SCIENCE USA INSTITUTE Edward Beaver UNVERSITY OF CALIFORNIA, SAN USA DIEGO E. M. Burbidge UNIVERSITY OF CALIFORNIA, SAN USA DIEGO ------------------------------------------------------------------------------------ 3. Description of proposed observations. In this test, we will obtain data on the sky and dark backgrounds. Sky measurements will be obtain at high galactic latitude, low galactic latitude, and the eclitpic plane, using the low dispersion gratings and the prism. Both detectors will be used, and data read from two different positions on the photocathode. The observations will be repeated as often as possible. Dark measurements will be obtained using both detectors. Data will be obtained with a variety of SIs prime, to test for an EMI problems, and data will be taken inside the SAA, to see if it may be possible to observe in this area. The observations will be repeated as often as possible. If possible, schedule the exposures up to 90 minutes in length with a readout every 5 minutes. Do not schedule the exposures for less than 30 minutes. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. GST5 POINTING INFORMATION: A HIGH GALACTIC POINTING IN FIELD NGC104 HAS BEEN SELECTED. PRIME TARGET IS OBSERVED IN PROPOSAL 1508 (FOC-04) EXPOSURE LOGSHEET LINES 6 & 7. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. This test is not stray light sensitive. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data reduction will be performed at the ST ScI, and the analysis will be performed using FOS IDT computer facilities. Although this is a calibration, no data will need to be added to the PODPS pipeline. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). Data analysis, research assistant support, and funding will be provided under NASA's FOS GTO contract(s). ------------------------------------------------------------------------------------ 11. Address Information Page 3 Name: RICHARD HARMS Category: PI Institution: APPLIED RESEARCH CORP Address: 8201 CORPORATE DRIVE SUITE 920 City: LANDOVER State: MD Zip Code: 20785 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 2198c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 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 NGC104- HIGH GALACTIC POINTING RA=00H 20M 20.91S +/- 10', 2000 HIBACK IN NGC104 DEC=-72D 04' 53.9" +/- 10' Comments: PARALLEL POINTING WITH FOC PROPOSAL 1508. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 2198c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 3 DEFINE # FOS/BL ACCUM 1.0 PRISM STEP-PATT=STAR- 6 5M 1 PARALLEL BACKB3 SKY NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 DEFINE DARK # ACCUM 6 5M 1 PARALLEL DARK NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 6 USE FOS/RD DARK Comments: TAKE DARK IN THE SAA. ------------------------------------------------------------------------------------------------------------------------------------ 6.001 USE FOS/BL DARK Comments: TAKE DARK IN THE SAA. ------------------------------------------------------------------------------------------------------------------------------------ 7 USE NGC104- BACKB3 HIBACK ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 2198c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/BL # FOS/RD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters STEP-PATT=STAR-SKY ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GST/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PARALLEL; NON-INT; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements PRISM ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC104-HIBACK ------------------------------------------------------------------------------------------------------------------------------------