! File: 4151C.PROP ! Database: PEPDB ! Date: 20-FEB-1994:10:52:14 coverpage: title_1: MONITOR LONG-TERM STABILITY OF THE FGS'S EXTENSION proposal_for: SV/AST cont_id: 1418 pi_fname: WILLIAM pi_mi: H. pi_lname: JEFFERYS pi_inst: UNIVERSITY OF TEXAS pi_country: USA pi_phone: 512-471-1455 hours_pri: 2.50 num_pri: 5 fgs: Y pi_position: PROFESSOR ! end of coverpage abstract: line_1: The goal of these measurements is to monitor the internal positional stability line_2: of the FGSs by measuring a few stars in "check fields" repeatedly during the SV line_3: period. line_4: The results of these measurements line_5: are the stability characteristics of the FGS to allow an estimate line_6: of the frequency of OFAD re-calibrations. line_7: NOW USES WvA positions for PROX and ref frame. 910920 line_8: Modified 910920 by F. Benedict to line_9: 1) observe Proxima Cen starting 920201 line_10: 2) do either FGS 1 or FGS 3 line_11: THIS IS AN FGS 3 TEST line_12: Modified 8 Feb 92 to remove v=16.25 target and change pupil to F583W. line_13: Modified 4/14/92 add two stars + extension through August 1992 F. Benedict line_14: Data are acquired during each of two orbits on each date. This provides line_15: redundancy and space for internal test source observations. ! ! end of abstract general_form_proposers: lname: JEFFREYS fname: WILLIAM inst: UNIV. OF TEXAS country: USA ! lname: BENEDICT fname: GEORGE inst: UNIV. OF TEXAS country: USA ! lname: FREDRICK fname: LAURENCE inst: UNIV. OF VIRGINIA country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: 1) First obs on 7/6/92 +/- 2D (day 188) at 5/17/92 off-nominal roll line_2: 2) Second obs: Off nominal roll = +30D line_3: 3) Position HST to place the check field in FGS 3. Acquire guide stars. line_4: HST roll should be selected so that the same roll orientation can be used line_5: as long as possible. line_9: 4) Measure 9 stars in POS mode. The last star is the same as the first. line_10: 5) Repeat step 4) after 60 minutes (to force second obs set into next orbit). line_11: 6) Repeat steps 3-5 after 10 +/-1 days using the same roll orientation line_12: as in step 1. line_13: 7) Repeat steps 3-5 after 20 +/- 1 days using the same roll line_14: orientation as in step 1. line_15: 8) Repeat steps 3-5 after 33 +/- 1 days using the same roll orientation line_16: as in step 1. line_17: 9) Repeat steps 3-5 after 46 +/- 1 days using the same roll orientation line_18: as in step 1. line_19: 10) Repeat steps 3-5 after 51 +/- 1 days using the same roll orientation line_20: as in step 1. ! question: 4 section: 1 line_1: We need to monitor structural changes due to line_2: any effects. ! question: 5 section: 1 line_1: line_7: SV 1418 Extension line_10: The orientation established in lines line_11: 12 and 28 apply to Proxima Cen as target. line_14: Series of measurements line_15: at a fixed orientation must be made using a single target/SEQUENCE. ! question: 7 section: 1 line_1: ADRS with SDAS will be used to monitor intra FGS positional changes line_2: due to H2O desorption plus other (e.g. thermal) causes. The measurements will line_3: be fit to previous measurements and a frequency of line_4: recalibration of the FGS geometries established. Special line_5: parameters will not be generated or required, but the raw data and final line_6: coefficients should be readily available for future analysis (CDB). ! 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 and at STScI. Some AST personnel will be line_2: available at STScI or GSFC to aid in reduction and analysis of the test data. ! question: 12 section: 1 line_1: 32 Kbps engineering data - MA link presumed line_2: Results of this test: a check field is measured and analyzed for changes in line_3: geometric distortions. Any significant changes will indicate the need for a line_4: complete recalibration using AST-SV-02 for that particular FGS. We will line_5: also establish a frequency of recalibration of the FGS geometries. line_6: A non-null result indicates the need for further analysis prior to continuing line_7: the SV program. ! question: 13 section: 1 line_1: line_2: The data should be stored for line_3: trend analysis of geometric changes over the course of SV. ! !end of general form text general_form_address: lname: JEFFERYS fname: WILLIAM mi: H. category: PI inst: UNIVERSITY OF TEXAS country: USA phone: (512) 471-3000 X445 ! lname: BENEDICT fname: GEORGE category: CON inst: MCDONALD OBSERVATORY addr_1: UNIV. OF TEXAS city: AUSTIN state: TX zip: 78712 country: USA phone: (512) 471-3448 ! lname: FREDRICK fname: LAURENCE category: CON inst: LEANDER MCCORMICK OBSERVATORY addr_1: UNIV. OF VIRGINIA addr_2: P.O. BOX 3818 addr_3: UNIV. STATION city: CHARLOTTESVILLE state: VA zip: 229030818 country: USA phone: (804) 924-4905 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: CK1-1 descr_1: J,701 pos_1: RA=04H 26M 54.20S +/- .01S, pos_2: DEC=+58D 53' 37.40" +/- 0.2" equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 70 GFB LIST fluxnum_1: 1 fluxval_1: V=15.29 +/- 0.5 ! targnum: 2 name_1: CK1-2-REF pos_1: RA=04H 26M 47.48S +/- .01S, pos_2: DEC=+58D 53' 45.3" +/- 0.2" equinox: 2000 pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1953.00 ra_pm_val: 0.088000 ra_pm_unct: 0.000667 dec_pm_val: 0.1960 dec_pm_unct: 0.0100 an_prlx_val: 0.1920 an_prlx_unct: 0.0100 comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STEIN-2051A fluxnum_1: 1 fluxval_1: V=10.43 +/- 0.1 ! targnum: 3 name_1: CK1-3-REF pos_1: RA=04H 27M 2.24S +/- .01S, pos_2: DEC=+58D 54' 5.5" +/- 0.2" equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 76 GFB LIST fluxnum_1: 1 fluxval_1: V=14.77 +/- 0.5 ! targnum: 4 name_1: CK1-4-REF pos_1: RA=04H 27M 2.68S +/- .01S, pos_2: DEC=+58D 53' 33.80" +/- 0.2" equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 68 GFB LIST fluxnum_1: 1 fluxval_1: V=14.53 +/- 0.5 ! targnum: 5 name_1: CK1-5-REF pos_1: RA=04H 26M 3.96S +/- .01S, pos_2: DEC=+58D 52' 48.90" +/- 0.2" equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 54 GFB LIST fluxnum_1: 1 fluxval_1: V=16.18 +/- 0.5 ! targnum: 6 name_1: CK1-6-REF pos_1: RA=04H 26M 58.89S +/- .01S, pos_2: DEC=+58D 53' 22.80" +/- 0.2" equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 58 GFB LIST fluxnum_1: 1 fluxval_1: V=13.79 +/- 0.5 ! targnum: 7 name_1: CK1-7-REF pos_1: RA=04H 26M 48.43S +/- .01S, pos_2: DEC=+58D 52' 9.20" +/- 0.2" equinox: 2000 pm_or_par: N acqpr_1: COMP comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 48 GFB LIST fluxnum_1: 1 fluxval_1: V=16.75 +/- 0.5 ! targnum: 8 name_1: CK1-8-REF pos_1: RA=04H 26M 45.22S +/- .01S, pos_2: DEC=+58D 52' 19.40" +/- 0.2" equinox: 2000 pm_or_par: N acqpr_1: COMP comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 55 GFB LIST fluxnum_1: 1 fluxval_1: V=15.66 +/- 0.5 ! targnum: 9 name_1: CK1-9-REF pos_1: RA=04H 26M 45.29S +/- .01S, pos_2: DEC=+58D 54' 4.20" +/- 0.2" equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 79 GFB LIST fluxnum_1: 1 fluxval_1: V=14.04 +/- 0.5 ! targnum: 10 name_1: CK1-10-REF pos_1: RA=04H 26M 55.40S +/- .01S, pos_2: DEC=+58D 54' 29.00" +/- 0.2" equinox: 2000 pm_or_par: N acqpr_1: COMP comment_1: CHECK FIELD STAR IN STEIN-2051A comment_2: STAR 77 GFB LIST fluxnum_1: 1 fluxval_1: V=14.60 +/- 0.5 ! targnum: 11 name_1: CK2-1 descr_1: J,701 pos_1: RA=217.4291788D +/- 0.00115D, pos_2: DEC=-62.679483D +/- 0.00115D equinox: 2000 pm_or_par: Y pos_epoch_bj: J pos_epoch_yr: 2000.00 ra_pm_val: -0.546267 ra_pm_unct: 0.000667 dec_pm_val: 0.8000 dec_pm_unct: 0.0100 an_prlx_val: 0.7800 an_prlx_unct: 0.0100 comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: PROXIMA CENTAURI fluxnum_1: 1 fluxval_1: V=11.02 +/- 0.1 ! targnum: 13 name_1: CK2-3-REF pos_1: RA=217.4819342D +/- 0.00115D, pos_2: DEC=-62.689244D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 17 GFB LIST fluxnum_1: 1 fluxval_1: V=15.10 +/- 0.07 ! targnum: 14 name_1: CK2-4-REF pos_1: RA=217.4546217D +/- 0.00115D, pos_2: DEC=-62.689341D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 18 GFB LIST fluxnum_1: 1 fluxval_1: V=15.76 +/- 0.05 ! targnum: 15 name_1: CK2-5-REF pos_1: RA=217.4353808D +/- 0.00115D, pos_2: DEC=-62.691332D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 19 GFB LIST fluxnum_1: 1 fluxval_1: V=14.36 +/- 0.1 ! targnum: 16 name_1: CK2-6-REF pos_1: RA=217.4860771D +/- 0.00115D, pos_2: DEC=-62.662371D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 22 GFB LIST fluxnum_1: 1 fluxval_1: V=14.58 +/- 0.09 ! targnum: 17 name_1: CK2-7-REF pos_1: RA=217.434505D +/- 0.00115D, pos_2: DEC=-62.686885D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 25 GFB LIST fluxnum_1: 1 fluxval_1: V=15.32 +/- 0.08 ! targnum: 18 name_1: CK2-8-REF pos_1: RA=217.42031251D +/- 0.00115D, pos_2: DEC=-62.694848D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 28 GFB LIST fluxnum_1: 1 fluxval_1: V=15.14 +/- 0.05 ! targnum: 20 name_1: CK2-10-REF pos_1: RA=217.3731942D +/- 0.00115D, pos_2: DEC=-62.662674D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 37 GFB LIST fluxnum_1: 1 fluxval_1: V=14.30 +/- 0.11 ! targnum: 21 name_1: CK2-11-REF pos_1: RA=217.3725963D +/- 0.00115D, pos_2: DEC=-62.667316D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: STAR 38 GFB LIST comment_3: 2/01/92 TO 8/20/92. fluxnum_1: 1 fluxval_1: V=14.43 +/- 0.09 ! targnum: 22 name_1: CK2-12-REF pos_1: RA=217.7322000D +/- 0.00115D, pos_2: DEC=-62.6906400D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: NEW STAR FROM GSSS comment_3: 2/01/92 TO 8/20/92. fluxnum_1: 1 fluxval_1: V=11.83 +/- 0.29 ! targnum: 23 name_1: CK2-13-REF pos_1: RA=217.2874917D +/- 0.00115D, pos_2: DEC=-62.5899600D +/- 0.00115D equinox: 2000 pm_or_par: N comment_1: CHECK FIELD STAR IN PROXIMA-CEN comment_2: NEW STAR FROM GSSS comment_3: 2/01/92 TO 8/20/92. fluxnum_1: 1 fluxval_1: V=11.19 +/- 0.29 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.010 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-1 config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, req_1: SEQ 1.01-1.11 NO GAP; comment_1: SEE QUESTION 5. ! linenum: 1.030 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-3-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.040 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-4-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.050 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-5-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.060 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-6-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.070 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-7-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.080 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-8-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.100 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-10-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.105 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-11-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.106 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-12-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.107 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-13-REF config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 1.110 sequence_1: DEFINE sequence_2: CHECKP targname: CK2-1 config: FGS opmode: POS aperture: # sp_element: F583W num_exp: 1 time_per_exp: 52S fluxnum_1: 1 priority: # param_1: DATA-RATE=32, ! linenum: 11.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: ORIENT 53D +/- 2.0D; req_3: CYCLE 2 / 11-24.001; comment_1: LINE 11 ESTABLISHES THE ROLL ORIENTA- comment_2: TION THAT WAS USED FOR ORIGINAL 1418 comment_3: MONITORING STABILITY. THE TIMING OF comment_4: THIS PROPOSAL ASSUMES THAT LINE 11 IS comment_5: DONE AROUND DAY 92.188. ORIENT 53D comment_6: IS -30D FROM NOMINAL ON DAY 92.188. ! linenum: 12.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: ORIENT 30D +/- 2.0D FROM NOMINAL; req_2: SEQ 11 - 12.001 NO GAP; comment_1: LINE 12 ESTABLISHES THE ROLL ORIENTA- comment_2: TION THAT WILL BE USED FOR LINES comment_3: 12-24 TO MIN. DISTORTION EFFECTS IN comment_4: MONITORING STABILITY. THE TIMING OF comment_5: THIS PROPOSAL ASSUMES THAT LINE 12 IS comment_6: DONE AROUND DAY 92.188. ! linenum: 12.001 sequence_1: USE CHECKP aperture: 3 priority: 1 req_2: SAME POS FOR 12.001 AS 12; ! linenum: 15.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: AFTER 12 BY 10D +/- 1D; req_2: SAME POS FOR 15 AS 12; req_3: SEQ 15-15.001 NO GAP; ! linenum: 15.001 sequence_1: USE CHECKP aperture: 3 priority: 1 req_2: SAME POS FOR 15.001 AS 12; ! linenum: 17.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: AFTER 12 BY 20D +/- 2D; req_2: SAME POS FOR 17 AS 12; req_3: SEQ 17-17.001 NO GAP; ! linenum: 17.001 sequence_1: USE CHECKP aperture: 3 priority: 1 req_2: SAME POS FOR 17.001 AS 12; ! linenum: 20.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: AFTER 12 BY 33D +/- 2D; SAME POS FOR 20 req_2: AS 12; SEQ 20-20.001 NO GAP; ! linenum: 20.001 sequence_1: USE CHECKP aperture: 3 priority: 1 req_2: SAME POS FOR 20.001 AS 12; ! linenum: 23.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: AFTER 12 BY 46D +/- 2D; req_2: SAME POS FOR 23 AS 12; req_3: SEQ 23-23.001 NO GAP; ! linenum: 23.001 sequence_1: USE CHECKP aperture: 3 priority: 1 req_2: SAME POS FOR 23.001 AS 12; ! linenum: 24.000 sequence_1: USE CHECKP aperture: 3 priority: 1 req_1: AFTER 12 BY 51D +/- 3D; SAME POS FOR 24 req_2: AS 12; SEQ 24-24.001 NO GAP; ! linenum: 24.001 sequence_1: USE CHECKP aperture: 3 priority: 1 req_2: SAME POS FOR 24.001 AS 12; ! ! end of exposure logsheet ! No scan data records found