Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5551 Report Date: 18-Jul-95:17:37 Version: ********** Check-in Date: ********** 1.Proposal Title: GHRS GIMP CHARACTERIZATION--CYCLE 4 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/HRS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Stephen Hulbert STSCI USA 301-338-4911 ------------------------------------------------------------------------------------ 7. Abstract Measurements of the image drift due to the geomagnetic field will be made on the GHRS D2 detector. Maps of the spectral cal lamp image made at approximately 1 minute intervals will be used to determine the amount of motion in both X and Y directions. Spectra obtained with the onboard calibration lamps in RAPID readout mode will permit determination of the uniformity of the image drift across the diode array and an accurate sensitivity and phase measurement. The latter data will also be used to determine how well the effect can be corrected and if second order effects (hysteresis, local field distortion due to permeable materials in the vicinity of the Digicons, influence of the S/C magnetic torquers) are substantial. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 0 10. Num targs pri: 0 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5551 PI: Stephen Hulbert Proposal Title: GHRS GIMP CHARACTERIZATION--CYCLE 4 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Stepehn Hulbert STSCI USA David Soderblom STSCI USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Aperture maps will be obtained, at four different S/C pointings, at approximately 1 minute intervals, to determine amout of image drift due to the geomagnietic field in both X and Y Digicon coordinate. A similar set of internal cal lamp spectra, obtained at higher time resolution, will permit a more accurate characterization of the effect, over the full length of the diode array. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. All observations are internal and may be obtained under gyro control. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data reduction and analysis will be performed at STSCI. ------------------------------------------------------------------------------------ 11. Address Information Name: STEPHEN HULBERT Category: PI Institution: STSCI Address: 3700 SAN MARTIN DR City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: 301-338-4911 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 5551 [ 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 NORTH RA = 00H 00M 00.0S +/- 1H, 2000 DEC = +90D 00' 00.0" +/- 1D, Comments: NORTH CELESTIAL POLE ------------------------------------------------------------------------------------------------------------------------------------ 2 SOUTH RA = 00H 00M 00.0S +/- 1H, 2000 DEC = -90D 00' 00.0" +/- 1D, Comments: SOUTH CELESTIAL POLE ------------------------------------------------------------------------------------------------------------------------------------ 3 EQ6 RA = 06H 00M 00.0S +/- 1H, 2000 DEC = +00D 00' 00.0" +/- 1D, Comments: POINT NEAR CEL EQUATOR ------------------------------------------------------------------------------------------------------------------------------------ 4 EQ12 RA = 12H 00M 00.0S +/- 1H, 2000 DEC = +00D 00' 00.0" +/- 1D, Comments: POINT NEAR CEL EQUATOR ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5551 [ 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 DEFINE # HRS IMAGE SC2 MIRROR-N2 NX=16 30 51.2S 1 SC2MAP NY=16 DELTA-X=2 DELTA-Y=2 Comments: STEPTIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 1.1 DEFINE # S/C POINTIN V1 CONTROL=GYRO 1 1S 1 SC2MAP G ------------------------------------------------------------------------------------------------------------------------------------ 2 DEFINE WAVE HRS RAPID SC2 G270M 2900.2 1 25M 1 SC2MAP ------------------------------------------------------------------------------------------------------------------------------------ 2.1 DEFINE # S/C POINTIN V1 CONTROL=GYRO 1 1S 1 SPEC G ------------------------------------------------------------------------------------------------------------------------------------ 100 USE NORTH GROUP 100-130 SC2MAP WITHIN 1D CYCLE 4 / 100-130 ------------------------------------------------------------------------------------------------------------------------------------ 110 USE SOUTH SC2MAP ------------------------------------------------------------------------------------------------------------------------------------ 120 USE EQ6 SC2MAP ------------------------------------------------------------------------------------------------------------------------------------ 130 USE EQ12 SC2MAP ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5551 [ 5] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS S/C ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE POINTING RAPID ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NX=16 NY=16 DELTA-X=2 DELTA-Y=2 CONTROL=GYRO ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GROUP 100-130 WITHIN 1D; CYCLE 4 / 100-130; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-N2 G270M ------------------------------------------------------------------------------------------------------------------------------------ Target Names NORTH SOUTH EQ6 EQ12 ------------------------------------------------------------------------------------------------------------------------------------