! File: 3374C.PROP ! Database: PEPDB ! Date: 19-FEB-1994:05:25:49 coverpage: title_1: GHRS SSA SPIRAL SEARCH VERIFICATION proposal_for: CAL/HRS pi_fname: RONALD pi_mi: L. pi_lname: GILLILAND pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA pi_phone: 301-338-4454 keywords_1: CALIBRATION keywords_2: SPECTROSCOPY, UV hours_pri: 1.39 num_pri: 1 ! end of coverpage abstract: line_1: The highest priority augmentation of flight software in support of GHRS line_2: for build 4.0 is capability of return to brightest point of an SSA line_3: spiral search. This will allow a true flux peakup in the SSA, a sorely line_4: missed capability currently. There are two points that need verification line_5: and testing in support of flight software changes: 1) In SSA spiral what line_6: is optimal step-size? By doing a "brute-force" spiral search in this test line_7: we will accumulate valuable supporting information to facilitate rapid line_8: utility of new capibility with FSW 4.0. 2) The attenuated mirrors pick line_9: off only a small part of the beam, and introduce their own aberrations line_10: in the resultant PSF. It is not obvious that maximizing image placement line_11: for the mirrors, is same as that maximizing placement for the spectral line_12: elements. This proposal yields a direct test of possible mirror/dispersing line_13: element differences. line_14: This test will also provide valuable information on current alignment line_15: uncertainties for mirror A2. ! ! end of abstract general_form_proposers: lname: GILLILAND fname: RONALD inst: STSCI country: USA ! ! end of general_form_proposers block general_form_text: question: 5 section: 1 line_1: Minimal ACCUM mode exposures are more than adequate to define line_2: a high quality spiral flux "map" for both A2 and G160M. ! question: 7 section: 1 line_1: line_4: Data will be analysed at the ST ScI using fully developed and line_5: tested software. ! question: 13 section: 1 line_1: line_3: Flux measurements will be obtained at a grid of positions near line_4: nominal best pointing with the SSA, using both a mirror and a line_5: dispersing element. This will be used to derive optimal step line_6: size for SSA spiral search. ! !end of general form text general_form_address: lname: GILLILAND fname: RONALD mi: L. category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: HD141556 name_2: CHI-LUP descr_1: BP HG MN STAR pos_1: RA=15H 47M 46.468S +/- 0.2", pos_2: DEC=-33D 28' 35.36" +/- 0.2" equinox: 1950 pm_or_par: Y pos_epoch_yr: 1950.00 ra_pm_val: -0.000600 ra_pm_unct: 0.000667 dec_pm_val: -0.0320 dec_pm_unct: 0.0100 rv_or_z: V=+5 fluxnum_1: 1 fluxval_1: V=3.95+/-.05, TYPE=BP fluxnum_2: 2 fluxval_2: F-CONT(1362)=1.8 E-10 fluxnum_3: 3 fluxval_3: F-CONT(1868)=1.9 E-10 fluxnum_4: 4 fluxval_4: F-CONT(2682)=1.0 E-10 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: HD141556 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 5.0S s_to_n: 10 fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=5, param_2: FAINT=1900, req_1: ONBOARD ACQ FOR 1.001; comment_1: STEP-TIME=0.2 SEC ! linenum: 1.001 targname: HD141556 config: HRS opmode: ACQ/PEAKUP aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 73.6S s_to_n: 10 fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 1.002-113.000; comment_1: STEP-TIME=1.6 SEC ! linenum: 1.002 targname: HD141556 config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 102.4S s_to_n: 10 fluxnum_1: 4 priority: 1 param_1: NX=32, param_2: NY=16, param_3: DELTA-X=2, param_4: DELTA-Y=4, ! linenum: 2.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: CYCLE 1 / 1.000-113.000; req_2: SEQ 2-113 NO GAP ! linenum: 3.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 2.0 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 12.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, ! linenum: 13.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 22.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG -0.125,0.0 / 22-23 ! linenum: 23.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 32.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG -0.125,0.125 / 32-33 ! linenum: 33.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 42.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG 0.0,0.125 / 42-43 ! linenum: 43.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 52.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG 0.125,0.125 / 52-53 ! linenum: 53.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 62.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG 0.125,0.0 / 62-63 ! linenum: 63.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 72.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG 0.125,-0.125 / 72-73 ! linenum: 73.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 82.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG 0.0,-0.125 / 82-83 ! linenum: 83.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 92.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG -0.125,-0.125 / 92-93 ! linenum: 93.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 102.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG -0.250,0.0 / 102-103 ! linenum: 103.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! linenum: 112.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 4 priority: 1 param_1: STEP-PATT=4, req_1: POS TARG 0.25,0.0 / 112-113 ! linenum: 113.000 targname: HD141556 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1868 num_exp: 1 time_per_exp: 14.4S s_to_n: 100 fluxnum_1: 3 priority: 1 param_1: STEP-PATT=4, ! ! end of exposure logsheet ! No scan data records found