! File: 1417C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:18:25:28 coverpage: title_1: CROSS FILTER CALIBRATION AST-SV-6 proposal_for: SV/AST cont_id: 1417 pi_fname: WILLIAM pi_mi: H. pi_lname: JEFFERYS pi_inst: UNIVERSITY OF TEXAS pi_country: USA pi_phone: 512-471-3000 X455 hours_pri: 5.62 num_pri: 9 fgs: Y pi_position: PROFESSOR ! end of coverpage abstract: line_1: The goal of this procedure is to determine the positional offsets produced by line_2: the FGS filters, and to determine any distortions produced by the individual line_3: filters. Values of these parameters will be entered into the STScI database line_4: for SDAS reduction of FGS data. ! ! end of abstract general_form_proposers: lname: fname: ASTROMETRY SCI TEAM ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: Many astrometric observations require the use of filters other than the line_2: "yellow" filter. In some cases the filters will be changed between settings on line_3: the stars in the same field. Therefore, the effects as a function of position line_4: for different filters must be known. ! question: 3 section: 1 line_1: line_2: 1) Position ST so that there are 6-9 stars in FGS 3 in the line_3: appropriate magnitude range. line_4: 2) Using PUPIL, scan stars to certify singularity. This may be done before or line_5: after the POS mode. line_6: 3) measure 6-9 stars in POS mode, with filter PUPIL. line_7: 4) Change filter to F583W. 5) Repeat step 3 with F583W. line_8: 6) Change filter to F605W. line_10: 7) Repeat step 3 using F605W line_11: 8) Change filter to F5ND. line_12: 9) Repeat step 3 using F5ND. line_13: 10) Change filter to F550W line_14: 11) Repeat step 2 using F550W line_17: Note: As with AST-02 (Proposals 1567-9) the number of stars line_18: actually in the FGS FOV is a function of date and HST line_19: orientation. Only those stars in the FOV are to be observed. ! question: 4 section: 1 line_1: GB observations are only good to .01 arcsec at best; we need line_2: 6-9 stars in magnitude range of overlap between ALL filters. ! question: 5 section: 1 line_1: SV PREREQUISITES: line_3: NONE ! question: 7 section: 1 line_1: ADRS within SDAS will be used to analyse the data, in particular to fit the line_2: data from one filter-FGS to the "yellow" filter data for that FGS. AST-SV-2 line_3: will produce the distortion coefficients for each FGS-yellow filter position. line_4: The data will be fit with increasing order polynomials until the 0.002 arcsec line_5: rms residual level is reached. The simplest model (constant offset) will be line_6: assumed to start. The terms, and their derived values, for each filter will be line_7: part of the data bases accessable to reduction procedures. line_8: This proposal depends on AST_OV-3 and AST_OV_4. The line_9: results will be incorporated in the CDB to be used by SDAS line_10: to hold parameters used in the reductions for differences line_11: between filters. ! question: 8 section: 1 line_1: All FGS numbers refer to BAY numbers. ! question: 10 section: 1 line_1: ADRS will be available in Austin to reduce and analyse the data. Some AST line_2: personnel will be available at STScI or GSFC during SV in support of this test. ! !end of general form text general_form_address: lname: JEFFREYS fname: WILLIAM category: PI inst: UNIV OF TEXAS country: USA ! lname: VAN ALTENA fname: WILLIAM category: CON inst: YALE ASTRONOMY DEPT addr_1: P.O. BOX 6666 addr_2: 260 WHITNEY AVE city: NEW HAVEN state: CT zip: 06671 country: USA phone: 203-432-3020 ! lname: FRANZ fname: OTTO category: CON inst: LOWELL OBS addr_1: P.O. BOX 1269 city: FLAGSTAFF state: AZ zip: 86002 country: USA phone: 602-774-3358 ! ! end of general_form_address records fixed_targets: targnum: 100 name_1: PCEN3532 descr_1: J,701 pos_1: RA=11H 02M 43.835S +/- 1", pos_2: DEC=-58D 25'16.8" +/- 1" equinox: 1950 comment_1: THIS TARGET IS GIVEN SOLELY TO comment_2: ESTABLISH THE POINTING FOR THE comment_3: CENTER OF THE FGS FOV AND DOES comment_4: NOT CORRESPOND TO A STAR THAT comment_5: IS TO BE MEASURED. fluxnum_1: 1 fluxval_1: V=9.0 +/- 0.5 ! targnum: 101 name_1: FIL192-REF descr_1: J,701 pos_1: RA-OFF=-1.85S +/- .13S, pos_2: DEC-OFF=-95.0" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=9.6 +/- 0.5 ! targnum: 102 name_1: FIL193-REF descr_1: J,701 pos_1: RA-OFF=+5.98S +/- .13S, pos_2: DEC-OFF=-100.2" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=10.5 +/- 0.5 ! targnum: 103 name_1: FIL194-REF descr_1: J,701 pos_1: RA-OFF= +21.24S +/- .13S, pos_2: DEC-OFF=-43.9" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=9.8 +/- 0.5 ! targnum: 104 name_1: FIL195-REF descr_1: J,701 pos_1: RA-OFF= +22.98S +/- .13S, pos_2: DEC-OFF=+20.4" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=10.3 +/- 0.5 ! targnum: 105 name_1: FIL196-REF descr_1: J,701 pos_1: RA-OFF= -11.58S +/- .13S, pos_2: DEC-OFF=-40.2" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=9.2 +/- 0.5 ! targnum: 106 name_1: FIL197-REF descr_1: J,701 pos_1: RA-OFF= -12.29S +/- .13S, pos_2: DEC-OFF=-15.6" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=9.7 +/- 0.5 ! targnum: 107 name_1: FIL199-REF descr_1: J,701 pos_1: RA-OFF= -22.57S +/- .13S, pos_2: DEC-OFF=+20.7" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=9.7 +/- 0.5 ! targnum: 108 name_1: FIL200-REF descr_1: J,701 pos_1: RA-OFF= +10.20S +/- .13S, pos_2: DEC-OFF=+91.0" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=9.1 +/- 0.5 ! targnum: 109 name_1: FIL201-REF descr_1: J,701 pos_1: RA-OFF= -6.29S +/- .13S, pos_2: DEC-OFF=+118.0" +/-1", FROM 100 equinox: 1950 fluxnum_1: 1 fluxval_1: V=12.2 +/- 0.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: TSCAN targname: FIL192-REF config: FGS opmode: TRANS aperture: 3 sp_element: PUPIL num_exp: 1 time_per_exp: 50S fluxnum_1: 1 priority: 1 param_1: DATA-RATE=32, param_2: SCANS=4, param_3: STEP-SIZE=2.0, param_4: ACQ-DIST=10, req_1: DO FOR TARG 101-109; ! linenum: 2.000 sequence_1: DEFINE sequence_2: XFIL targname: FIL192-REF config: FGS opmode: POS aperture: # sp_element: # num_exp: 1 time_per_exp: 51.2S priority: # param_1: DATA-RATE=32, param_2: ACQ-DIST=10, req_1: DO FOR TARG 101-109; req_2: SEQ 2-3 NO GAP; ! linenum: 3.000 sequence_1: DEFINE sequence_2: XFIL targname: FIL192-REF config: FGS opmode: POS aperture: # sp_element: # num_exp: 1 time_per_exp: 51.2S priority: # param_1: DATA-RATE=32, param_2: ACQ-DIST=10, ! linenum: 110.000 targname: PCEN3532 config: FGS opmode: POS aperture: 3 sp_element: PUPIL num_exp: 1 time_per_exp: 0M priority: 1 param_1: DATA-RATE=32, param_2: ACQ-DIST=10, req_1: CYCLE 2 / 1.00-121.0; ! linenum: 111.000 sequence_1: USE XFIL aperture: 3 sp_element: PUPIL priority: 1 req_1: SEQ 110-115 NO GAP; req_2: SAME POS FOR 111-115 AS 110; comment_1: DO FOR ALL TARGETS IN THE FOV. ! linenum: 112.000 sequence_1: USE XFIL aperture: 3 sp_element: F583W priority: 1 ! linenum: 113.000 sequence_1: USE XFIL aperture: 3 sp_element: F605W priority: 1 ! linenum: 114.000 sequence_1: USE XFIL aperture: 3 sp_element: F5ND priority: 1 ! linenum: 115.000 sequence_1: USE XFIL aperture: 3 sp_element: F550W priority: 1 ! linenum: 120.000 targname: PCEN3532 config: FGS opmode: POS aperture: 3 sp_element: PUPIL num_exp: 1 time_per_exp: 0M priority: 1 param_1: DATA-RATE=32, param_2: ACQ-DIST=10, req_1: GROUP 120,110 WITHIN 4D; ! linenum: 121.000 sequence_1: USE TSCAN req_1: SEQ 120-121 NO GAP; req_2: SAME POS FOR 121 AS 120; comment_1: DO FOR ALL TARGETS IN THE FOV. ! ! end of exposure logsheet ! No scan data records found