! File: 1506C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:21:02:15 coverpage: title_1: FOC DETECTOR FOCUS proposal_for: SV/FOC pi_title: DR. pi_fname: FRANCESCO pi_lname: PARESCE pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA hours_par: 2.50 foc: X ! end of coverpage abstract: line_1: The first time either f/48 or f/96 relay is turned on in SV, a detector focus line_2: should be performed. The procedure to be adopted is given in full detail in line_3: the ESA FOC document AV-FC-001/3 in Annex V (f/48) and VI (f/96), only a brief line_4: summary will be given here. line_6: The exposures required to carry out a detector focus use the the on-board line_7: LEDs--so the activity should be carried out with FOC in parallel mode. The line_8: data required for analysis are contained within the engineering data stream. line_9: Same test in OV already executed. line_11: MODIFIED 9/21/89 BY P. STANLEY - HIST mode observations must by 12 minutes in line_12: length. Changed lines 2 & 10 to 12M exposures. ! ! end of abstract general_form_proposers: 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: See AV-FC-001/3 App. V, Section 2 (f/48), line_2: See AV-FC-001/3 App. VI, Section 2 (f/96). line_3: In this procedure the FOC is set to histogram mode. line_4: The histogram mode gives the numbers of photon events in certain size line_5: categories (i.e., 2x2, 2x3, pixels, etc.). By stepping the focus coil, and line_6: the trim coil through their allowed ranges, it is possible to determine line_7: their optimum settings from analysis of these histogram data. line_8: These tests do not study the focus of the first stage of the intensifier unit. line_9: If, as a result of the above steps it is determined that the first stage is out line_10: of focus, then it will be necessary to devise a test using a known star field line_11: (47 Tuc) to optimise the intensifier first stage focus. line_12: This test serves as verification that the optimum focus settings determined line_13: during OV are indeed the most appropriate values. Analysis of the histogram line_14: data will be performed off-line using CDBS and SDAS. line_15: During lines 3-5 the f/96 focus coil is stepped through its settings. line_16: During lines 6-8 the f/96 trim coil is stepped through its settings. line_17: During lines 11-13 the f/48 focus coil is stepped through its settings. line_18: During lines 14-16 the f/48 trim coil is stepped through its settings. line_19: Line 2 is to be performed as per A&V block XSV_THRESHOP_B. line_20: Line 10 is to be performed as per A&V block XSV_THRESHOP_A. ! question: 5 section: 1 line_1: The first time either f/48 or f/96 relay is turned on in SV, a detector focus line_2: should be performed. This test is to be performed in the f/48 relay and the f/96 line_3: relay. This test should be carried out with the FOC in the parallel mode. The line_4: exposures should not be taken near SAA passage. This test is to be conducted line_5: after the FOC stability test (1505) is completed; that is, approximately 12 line_6: hours after FOC turn-on. line_8: Note to scheduler: The exposures consist of images of the on-board LED in line_9: histogram mode. The exposures must be taken in sequence with no gap, apart from line_10: that necessary to carry out the various commands. line_12: All data to be taken in histogram mode. The data required for focus line_13: verification are contained within the engineering data stream. line_14: The "AN" telemetry format should be used. ! question: 7 section: 1 line_1: line_2: The data are contained within the engineering data stream. The relevant line_3: parts will be extracted and analysed using SDAS software tools, with the line_4: results being put into CDBS. ! !end of general form text general_form_address: lname: PARESCE fname: FRANCESCO title: DR. category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: 301-338-4805 telex: 684-9101-STSCI ! ! end of general_form_address records ! No fixed target records found ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 2.000 targname: DARK config: FOC/96 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 req_1: CYCLE 0/2-16; req_2: SEQ 2-16; comment_1: HISTOGRAM IN LINE 2 MUST BE PERFORMED comment_2: BY EXECUTION OF A&V COMMAND comment_3: XSV_THRESHOP_B. HISTOGRAM DATA ARE comment_4: IN THE ENGINEERING DATA STREAM. ! linenum: 3.000 targname: INTFLAT config: FOC/96 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 param_1: LED=GREEN-2, param_2: LED-STEP=64 req_2: SEQ 3-5 NO GAP; comment_1: HIGH VOLTAGE ON. comment_2: CHANGE FOCUS COIL CURRENT VIA XPDAEL comment_3: TO COMMAND SETTING 10.0; HISTOGRAM comment_4: MODE. ! linenum: 4.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 comment_1: CHANGE FOCUS COIL CURRENT VIA XPDAEL comment_2: TO COMMAND SETTING 11.0; comment_3: HISTOGRAM MODE. ! linenum: 5.000 targname: INTFLAT config: FOC/96 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 param_1: LED=GREEN-2, param_2: LED-STEP=64 comment_1: CHANGE FOCUS COIL CURRENT VIA XPDAEL comment_2: TO COMMAND SETTING 10.1; comment_3: HISTOGRAM MODE. ! linenum: 6.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 req_1: SEQ 6-8 NO GAP; comment_1: TRIM COIL COMMANDED TO 0; comment_2: HISTOGRAM MODE. ! linenum: 7.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 comment_1: TRIM COIL COMMANDED TO -96; comment_2: HISTOGRAM MODE. ! linenum: 8.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 comment_1: TRIM COIL COMMANDED TO -46; comment_2: HISTOGRAM MODE. ! linenum: 10.000 targname: DARK config: FOC/48 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 comment_1: HISTOPGRAM IN LINE 10 MUST BE comment_2: PERFORMED BY EXECTION OF A&V COMMAND comment_3: XSV_THRESHOP_A. ! linenum: 11.000 targname: INTFLAT config: FOC/48 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 param_1: LED=GREEN-2, param_2: LED-STEP=16 req_2: SEQ 10-13 NO GAP; comment_1: HIGH VOLTAGE ON. CHANGE FOCUS COIL comment_2: CURRENT VIA XPDAEL TO COMMAND SETTING comment_3: 2.0; HISTOGRAM MODE. ! linenum: 12.000 targname: INTFLAT config: FOC/48 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 comment_1: CHANGE FOCUS COIL CURRENT VIA XPDAEL comment_2: TO COMMAND SETTING 3.0; comment_3: HISTOGRAM MODE. ! linenum: 13.000 targname: INTFLAT config: FOC/48 opmode: HIST aperture: 512X512 num_exp: 1 time_per_exp: 12M priority: 9 param_1: LED=GREEN-2, param_2: LED-STEP=16 comment_1: CHANGE FOCUS COIL CURRENT VIA XPDAEL comment_2: TO COMMAND SETTING 3.1; comment_3: HISTOGRAM MODE. ! linenum: 14.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 req_1: SEQ 14-16 NO GAP; comment_1: TRIM COIL COMMANDED TO 0; comment_2: HISTOGRAM MODE. ! linenum: 15.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 comment_1: TRIM COIL COMMANDED TO +96; comment_2: HISTOGRAM MODE. ! linenum: 16.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: ^ time_per_exp: ^ priority: 9 comment_1: TRIM COIL COMMANDED TO +46; comment_2: HISTOGRAM MODE. ! ! end of exposure logsheet ! No scan data records found