! File: 1521C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:21:46:09 coverpage: title_1: FOC POLARIZATION CALIBRATION proposal_for: SV/FOC pi_fname: FRANCESCO pi_lname: PARESCE pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA pi_phone: 301-338-4823 keywords_1: POLARIMETRY CALIBRATION hours_pri: 1.50 num_pri: 2 foc: X pi_position: DR. off_fname: F. off_lname: PARESCE off_title: DR. off_addr_1: SPACE TELESCOPE SCIENCE INSTITUTE off_city: BALTIMORE off_state: MD off_zip: 21218 off_country: USA off_phone: 338-4823 ! end of coverpage abstract: line_1: As a first priority, we intend to determine the unpolarized transmission line_2: coefficients to a relative accuracy of 0.3% in the B band and in the UV, using line_3: an STScI standard extended unpolarized source. As a second priority, we intend line_4: to determine the effective polarimeter position angle offset with respect to line_5: the HST axes to an accuracy of 3 degrees, using an STScI standard extended line_6: polarized source. The values of the polarized transmission coefficients will line_7: also be be determined to an accuracy of 3%, although it is not expected that line_8: these coefficients will change significantly from their pre-launch values. ! ! end of abstract general_form_proposers: lname: PARESCE fname: FRANCESCO inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: These observations are needed to determine the unpolarized transmission line_2: coefficients in orbit to a relative accuracy of 0.3%. An STScI standard line_3: extended unpolarized (<0.15%) source (NGC4478) will be observed throught the line_4: polarizers in the B band (F430W), and in the UV (F220W). This requires 6x4 line_5: minute exposures and the data will be binned in 1.3"x1.3" apertures to give the line_6: required S/N. line_8: The effective polarimeter position angle offset and polarized transmission line_9: coefficients will be determined to a relative accuracy of 3% by observing an line_10: STScI standard polarized source (R Mon) through the polarizers in the B band line_11: (F430W) and in the UV (F220W). This requires 6x4 minute exposures and the data line_12: will be binned in 1.3"x1.3" apertures to give the required S/N. ! question: 5 section: 1 line_1: The orientation of the spacecraft must be the same for line_2: the specified exposures to enable overlay of the 3 line_3: polarized images. ! question: 12 section: 1 line_1: line_2: This is an SV/FOC program to give a baseline calibration line_3: for the polarimeter. ! !end of general form text general_form_address: lname: PARESCE fname: FRANCESCO category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE country: USA phone: 301-338-4823 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC4478 name_2: GSC877-539 descr_1: ELLIPTICAL GALAXY, descr_2: POLARIMETRIC STANDARD pos_1: RA=12H 30M 17.45S +/- 0.1S, pos_2: DEC=+12D 19' 41.65" +/- 0.5", pos_3: PLATE-ID=00IY equinox: 2000 fluxnum_1: 1 fluxval_1: SURF(B)=17.5 ! targnum: 2 name_1: R-MON descr_1: BIPOLAR NEBULA, descr_2: POLARIMETRIC STANDARD pos_1: RA=06H 39M 9.97S +/- 0.1S, pos_2: DEC=+08D 44' 23.7" +/- 0.5", pos_3: PLATE-ID=01W8 equinox: 2000 fluxnum_1: 1 fluxval_1: SURF(B)=17.5 ! targnum: 3 name_1: NGC4486 descr_1: ELLIPTICAL GALAXY pos_1: RA=12H 30M 49.45S +/- 0.1S, pos_2: DEC=+12D 23' 27.80" +/- 0.5", pos_3: PLATE-ID=00IY equinox: 2000 fluxnum_1: 1 fluxval_1: SURF(B)=17.5 ! targnum: 4 name_1: LK-HA-233 descr_1: BIPOLAR NEBULA, descr_2: POLARIMETRIC STANDARD pos_1: RA=22H 34M 30.2S +/- 0.1S, pos_2: DEC=+40D 40' 5.9" +/- 0.5", pos_3: PLATE-ID=01YI equinox: 2000 fluxnum_1: 1 fluxval_1: SURF(B)=18 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 0.500 sequence_1: DEFINE POL targname: # config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F372M num_exp: 1 time_per_exp: 1000S fluxnum_1: 1 priority: # param_1: PIXEL=50X25, req_1: INT ACQ FOR 1-6; req_2: CRIT OBS; ! linenum: 1.000 sequence_1: DEFINE POL targname: # config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F430W, POL0 num_exp: 1 time_per_exp: 1500S fluxnum_1: 1 priority: # req_1: SEQ 1-6 NO GAP; req_2: SAME ORIENT FOR 2-6 AS 1 ! linenum: 2.000 sequence_1: ^ sequence_2: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F430W, POL60 num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ ! linenum: 3.000 sequence_1: ^ sequence_2: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F430W, POL120 num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ ! linenum: 4.000 sequence_1: ^ sequence_2: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F220W, POL0 num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ ! linenum: 5.000 sequence_1: ^ sequence_2: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F220W, POL120 num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ ! linenum: 6.000 sequence_1: ^ sequence_2: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F220W, POL60 num_exp: ^ time_per_exp: ^ fluxnum_1: ^ priority: ^ ! linenum: 7.000 sequence_1: USE POL targname: NGC4486 priority: 1 req_1: SELECT 1 OF 7 OR 9; COND IF NGC4486 req_2: AVAILABLE; CYCLE 0/7-10; comment_1: STRONGLY PREFERRED TARGET ! linenum: 8.000 sequence_1: USE POL targname: R-MON priority: 1 req_1: SELECT 1 OF 8 OR 10; COND IF RMON req_2: AVAILABLE; GUID TOL 0.02"; ! linenum: 9.000 sequence_1: USE POL targname: NGC4478 priority: 1 req_1: CONDITION IF NGC4486 NOT AVAILABLE ! linenum: 10.000 sequence_1: USE POL targname: LK-HA-233 priority: 1 req_1: CONDITION IF R-MON NOT AVAILABLE; req_2: GUID TOL 0.02"; ! ! end of exposure logsheet ! No scan data records found