! $Id: 5551,v 4.1 1994/07/27 19:13:19 pepsa Exp $ coverpage: title_1: GHRS GIMP CHARACTERIZATION--CYCLE 4 proposal_for: CAL/HRS pi_fname: STEPHEN pi_lname: HULBERT pi_inst: STSCI pi_country: USA pi_phone: 301-338-4911 ! end of coverpage abstract: line_1: Measurements of the image drift due to the geomagnetic field will line_2: be made on the GHRS D2 detector. Maps of the spectral cal lamp image line_3: made at approximately 1 minute intervals will be used to line_4: determine the amount of motion in both X and Y directions. Spectra line_5: obtained with the onboard calibration lamps in RAPID readout mode line_6: will permit determination of the uniformity of the image drift across line_7: the diode array and an accurate sensitivity and phase measurement. line_8: The latter data will also be used to determine how well the effect can line_9: be corrected and if second order effects (hysteresis, local field line_10: distortion due to permeable materials in the vicinity of the Digicons, line_11: influence of the S/C magnetic torquers) are substantial. ! ! end of abstract general_form_proposers: lname: HULBERT fname: STEPEHN inst: STSCI country: USA ! lname: SODERBLOM fname: DAVID inst: STSCI country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Aperture maps will be obtained, line_2: at four different S/C pointings, at approximately 1 minute intervals, to line_3: determine amout of image drift due to the geomagnietic field in both X and Y line_4: Digicon coordinate. A similar set of internal cal lamp spectra, obtained at line_5: higher time resolution, will permit a more accurate characterization of the line_6: effect, over the full length of the diode array. ! question: 5 section: 1 line_1: All observations are internal and may be obtained under gyro control. ! question: 7 section: 1 line_1: Data reduction and analysis will be performed at STSCI. ! !end of general form text general_form_address: lname: HULBERT fname: STEPHEN category: PI inst: STSCI addr_1: 3700 SAN MARTIN DR city: BALTIMORE state: MD zip: 21218 country: USA phone: 301-338-4911 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NORTH pos_1: RA = 00H 00M 00.0S +/- 1H, pos_2: DEC = +90D 00' 00.0" +/- 1D, equinox: 2000 comment_1: NORTH CELESTIAL POLE ! targnum: 2 name_1: SOUTH pos_1: RA = 00H 00M 00.0S +/- 1H, pos_2: DEC = -90D 00' 00.0" +/- 1D, equinox: 2000 comment_1: SOUTH CELESTIAL POLE ! targnum: 3 name_1: EQ6 pos_1: RA = 06H 00M 00.0S +/- 1H, pos_2: DEC = +00D 00' 00.0" +/- 1D, equinox: 2000 comment_1: POINT NEAR CEL EQUATOR ! targnum: 4 name_1: EQ12 pos_1: RA = 12H 00M 00.0S +/- 1H, pos_2: DEC = +00D 00' 00.0" +/- 1D, equinox: 2000 comment_1: POINT NEAR CEL EQUATOR ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: SC2MAP targname: # config: HRS opmode: IMAGE aperture: SC2 sp_element: MIRROR-N2 num_exp: 30 time_per_exp: 51.2S priority: 1 param_1: NX=16,NY=16 param_2: DELTA-X=2, param_3: DELTA-Y=2, comment_1: STEPTIME=0.2S ! linenum: 1.100 sequence_1: DEFINE sequence_2: SC2MAP targname: # config: S/C opmode: POINTING aperture: V1 num_exp: 1 time_per_exp: 1S priority: 1 param_1: CONTROL=GYRO ! linenum: 2.000 sequence_1: DEFINE sequence_2: SC2MAP targname: WAVE config: HRS opmode: RAPID aperture: SC2 sp_element: G270M wavelength: 2900.2 num_exp: 1 time_per_exp: 25M priority: 1 ! linenum: 2.100 sequence_1: DEFINE sequence_2: SPEC targname: # config: S/C opmode: POINTING aperture: V1 num_exp: 1 time_per_exp: 1S priority: 1 param_1: CONTROL=GYRO ! linenum: 100.000 sequence_1: USE sequence_2: SC2MAP targname: NORTH req_1: GROUP 100-130 WITHIN 1D; req_2: CYCLE 4 / 100-130; ! linenum: 110.000 sequence_1: USE sequence_2: SC2MAP targname: SOUTH ! linenum: 120.000 sequence_1: USE sequence_2: SC2MAP targname: EQ6 ! linenum: 130.000 sequence_1: USE sequence_2: SC2MAP targname: EQ12 ! ! end of exposure logsheet ! No scan data records found