! File: 4228C.PROP ! Database: PEPDB ! Date: 20-FEB-1994:18:17:55 coverpage: title_1: GHRS RETURN TO BRIGHTEST (LSA) TEST proposal_for: CAL/HRS pi_title: DR. pi_fname: RONALD pi_mi: L. pi_lname: GILLILAND pi_inst: STSCI pi_country: USA pi_phone: 410 338 4454 keywords_1: CALIBRATION hours_pri: 2.00 num_pri: 1 hrs: Y ! end of coverpage abstract: line_1: Flight software 4.0 release will include an important new line_2: capability for the GHRS -- return to brightest point following line_3: a spiral search. This will become the default target acquisition line_4: mode for most observations. A test will be performed by line_5: acquiring a standard calibration star using the previous standard line_6: mode and taking a confirmation image. Then we will slightly line_7: reposition the telescope to mimic typical initial pointing errors line_8: and perform a return to brightest based spiral search. This will line_9: again be followed by a confirmation image. This exercise of the line_10: new flight software and commanding will directly test, under line_11: known acquisition conditions, whether the basic procedure works. ! ! end of abstract general_form_proposers: lname: GILLILAND fname: RONALD title: DR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: SODERBLOM fname: DAVID title: DR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: HULBERT fname: STEVE title: DR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: A more robust method of performing Mode II target line_2: acquisitions with the GHRS is being implemented and will line_3: be available for general use early in Cycle 2. line_4: This proposal simply tests the effectiveness of the new line_5: software by exercising it under controlled circumstances. ! question: 3 section: 1 line_1: Part 1: lines 1-3 a routine mode II spiral search on line_2: the previously observed target, BD+28D4211 using line_3: BRIGHT and FAINT limits. Standard acquisition is line_4: followed by an ACQ/PEAKUP and a confirmation image. line_5: Part 2: The telescope is repostioned to put the image line_6: center in a predictable position relative to a new line_7: mode II spiral search conducted using RETURN TO BRIGHTEST line_8: lines 11-13 will be a direct repeat of 1-3 except for line_9: adoption of the different target selection mode. ! question: 5 section: 1 line_1: All target coordinates and acquistion related parameters line_2: are taken directly from the CYCLE1 CAL proposal 3385 for line_3: BD+28D4211 that has executed successfully several times. ! !end of general form text general_form_address: lname: GILLILAND fname: RONALD title: DR. category: PI inst: SPACE TELESCOPE SCIENCE INSTITIUE ! lname: SODERBLOM fname: DAVID title: DR. category: CON inst: SPACE TELESCOPE SCIENCE INSTITIUE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: 410 338 4543 ! lname: HULBERT fname: STEVE title: DR. category: CON inst: SPACE TELESCOPE SCIENCE INSTITIUE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: 410 338 4911 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: BD28D4211 name_2: GSC2214-1198 descr_1: J,702 pos_1: RA = 21H 51M 11.07S +/- 0.1S, pos_2: DEC = +28D 51' 51.8" +/- 0.5", pos_3: PLATE-ID=01LR equinox: 2000 pm_or_par: NO fluxnum_1: 1 fluxval_1: V=10.53 fluxnum_2: 2 fluxval_2: B-V=-0.34 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: BD28D4211 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 9.0S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=3, param_2: FAINT=500, param_3: BRIGHT=50000 req_1: ONBOARD ACQ FOR 2; comment_1: THIS SHOULD YIELD STEP-TIME=1.0 SEC. comment_2: EXPECTED CENTERED FLUX = 1850 COUNTS. ! linenum: 2.000 targname: BD28D4211 config: HRS opmode: ACQ/PEAKUP aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 163.2S s_to_n: 10 fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 3; req_2: CYCLE 2 / 1.000-13.000; req_3: SEQ 2-13 NO GAP comment_1: THIS IS OUR STANDARD "DOUBLE comment_2: LOCATE" ACQ. comment_3: STEP-TIME=1.6 SEC ! linenum: 3.000 targname: BD28D4211 config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 512.0S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: NX=32, param_2: NY=16, param_3: DELTA-X=2, param_4: DELTA-Y=4, comment_1: THIS IS CONFIRMATION IMAGE FOR THE comment_2: PREVIOUS ACQ. comment_3: TIME PER DWELL POINT=1.0 SEC ! linenum: 11.000 targname: BD28D4211 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 9.0S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=3, param_2: BRIGHT=RETURN req_1: ONBOARD ACQ FOR 12; req_2: POS TARG +0.25,-2.00 / 11-13 comment_1: LINES 11-13 ARE A REPEAT OF 1-3 comment_2: EXCEPT: 1) SPIRAL SEARCH IS RETURN comment_3: TO BRIGHTEST MODE 2) TELESCOPE IS comment_4: REPOSITIONED SO TARGET IS INITIALLY comment_5: IN MAP #4 OF A 3X3. THIS IS EQUAL comment_6: TO A SIP OF V2=1.24", V3=-1.59" ! linenum: 12.000 targname: BD28D4211 config: HRS opmode: ACQ/PEAKUP aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 163.2S s_to_n: 10 fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 13; ! linenum: 13.000 targname: BD28D4211 config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 512.0S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: NX=32, param_2: NY=16, param_3: DELTA-X=2, param_4: DELTA-Y=4, ! ! end of exposure logsheet ! No scan data records found