! File: 2919C.PROP ! Database: PEPDB ! Date: 17-FEB-1994:21:38:36 coverpage: title_1: FOC OPTICAL FOCUS proposal_for: CAL/FOC pi_title: DR. pi_fname: FRANCESCO pi_lname: PARESCE pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA hours_pri: 12.50 foc: X ! end of coverpage abstract: line_1: The objective of this test is to determine the optimum setting of the FOC line_2: refocusing mechanism, using a standard HST calibration target line_3: field (NGC 5139).Two filters of different thickness are used. line_4: Each focus procedure will require 10 minutes per filter per line_5: mode of on-target time. ! ! end of abstract general_form_proposers: lname: PARESCE fname: FRANCESCO inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: PARESCE fname: F. title: DR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: This proposal describes the focussing procedures for f/48 and f/96. line_2: The procedure is based on observations of a standard HST line_3: calibration target field (NGC 5139), one taken line_4: at the nominal focus setting, two taken in the positive direction of the line_5: refocussing mechanism, two more at settings in the negative direction. line_6: Because of backlash it will be necessary to step the refocus mechanism in line_7: the same direction every time. At the completion of a focussing cycle the line_8: mechanism will be returned to its nominal position. line_9: Two filters will be used for the F/48 and the F/96. ! question: 3 section: 2 line_1: line_4: It is assumed that the optimum focus position for the other filters can be line_5: derived from the comparison of the observations in the reference filters line_6: with measurements taken during FOC ground testing. ! !end of general form text general_form_address: lname: PARESCE fname: FRANCESCO category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC5139 name_2: OMEGA-CEN descr_1: J pos_1: RA=13H 23M 45.76S +/- 0.01S, pos_2: DEC=-47D 13' 02.8" +/-1", equinox: 1950 fluxnum_1: 1 fluxval_1: B=18 +/- 3 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: FOCUS targname: # config: # opmode: # aperture: # sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: # req_1: SEQ 1-1.4 NO GAP; comment_1: FOCUS MIRROR MOVED TO POSITION 12 comment_2: BEFORE EXPOSURE IS TAKEN. ! linenum: 1.100 sequence_1: DEFINE sequence_2: FOCUS targname: # config: # opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 62. ! linenum: 1.200 sequence_1: DEFINE sequence_2: FOCUS targname: # config: # opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 112. ! linenum: 1.300 sequence_1: DEFINE sequence_2: FOCUS targname: # config: # opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 162. ! linenum: 1.400 sequence_1: DEFINE sequence_2: FOCUS targname: # config: # opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 212. ! linenum: 1.410 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: FOC/48 opmode: # aperture: # sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: # req_1: SEQ 1.41-1.48 NO GAP comment_1: FOCUS MIRROR MOVED TO POSITION 25 comment_2: BEFORE EXPOSURE IS TAKEN. ! linenum: 1.420 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: ^ opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 42. ! linenum: 1.430 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: ^ opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 72. ! linenum: 1.440 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: ^ opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 102. ! linenum: 1.450 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: FOC/48 opmode: # aperture: # sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: # comment_1: FOCUS STEPPED TO POSITION 132. ! linenum: 1.460 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: ^ opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 162. ! linenum: 1.470 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: ^ opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 192. ! linenum: 1.480 sequence_1: DEFINE sequence_2: FOCUS48 targname: # config: ^ opmode: ^ aperture: ^ sp_element: # num_exp: 1 time_per_exp: 600S priority: 1 param_1: ^ comment_1: FOCUS STEPPED TO POSITION 222. ! linenum: 2.000 sequence_1: USE sequence_2: FOCUS48 targname: NGC5139 opmode: IMAGE aperture: 512X512 sp_element: F140W req_2: SEQ 2-3.0 NO GAP; req_4: CYCLE 1 / 2-10; ! linenum: 3.000 sequence_1: USE sequence_2: FOCUS48 targname: NGC5139 opmode: IMAGE aperture: 512X512 sp_element: F220W ! linenum: 8.000 sequence_1: USE sequence_2: FOCUS targname: NGC5139 config: FOC/96 opmode: ^ aperture: ^ sp_element: F140W req_3: SEQ 8 - 10 NO GAP; ! linenum: 9.000 sequence_1: USE sequence_2: FOCUS targname: NGC5139 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F220W ! linenum: 10.000 sequence_1: USE sequence_2: FOCUS targname: NGC5139 config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: F342W,F2ND ! ! end of exposure logsheet ! No scan data records found