! $Id: 4265,v 4.1 1994/07/27 14:24:46 pepsa Exp $ coverpage: title_1: WFPC2 APERTURE LOCATION AND INITIAL PICKOFF MIRROR ADJUST proposal_for: SMC/WF2 pi_fname: CHRIS pi_lname: BURROWS pi_inst: ST SCI pi_country: USA pi_phone: 410-338-4913 hours_pri: 6.00 num_pri: 1 wf_pc: Y realtime: Y ! end of coverpage abstract: line_1: These activities verify the WFPC2 to FGS alignments and provide line_2: an initial input to pick-off mirror positioning. ! ! end of abstract general_form_proposers: lname: BURROWS fname: CHRIS inst: ST SCI country: USA esa: Y ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: This is the first step in WFPC2 alignment ! question: 3 section: 1 line_1: Description: line_3: Images are taken of a field that has a wide range of stellar magnitudes line_4: and is well characterized with astrometric accuracy of better than 0.1 line_5: arcsec, and photometric accuracy of 0.1 mag. Filters F502N and F953N, line_6: F555W are exposed for 40, 80 and 40 seconds respectively to give many line_7: visible stellar images, even if they are tens of pixels across. The line_8: F555W image is overexposed, in case the alignment is as bad as 20% of line_9: the pupil which would supress count rates by a factor of about 100. line_10: It is taken last to avoid residual image problems. Images are taken line_11: with 15 electrons/DN gain. ! question: 5 section: 1 line_1: Prerequisites: line_3: 1) Chips at -22C or below but TEC power can be off (initially prop 4711). line_4: 2) Calibration System Flat Field Check (prop 4707). line_9: Duration: line_11: 2 orbits + 48 hours think time before dependent operations, and mirror line_12: setting. The whole observation set takes one orbit, but it should be line_13: repeated 12 hours later with independent GS acquisitions in order to line_14: ensure data is taken. Requires OSS short turnaround data delivery. line_15: Request 3 30 minute uplinks after 9 hours and before repeat of data line_16: take and a second set of 3 30min uplinks after 36 hours. ! question: 7 section: 1 line_1: Results: line_3: 1) Pick-off mirror coarse alignment move (will also check mechanism). line_4: 2) Check on Photometric assumptions made for subsequent alignment line_5: activities. line_6: 3) Check on OTA focus. If more than 2 mm in error, we will move the line_7: SM once in focus. line_8: 4) Check of initial aperture location in the PDB. No updates are line_9: anticipated. line_11: Comments: line_13: Use Guide Star catalog to 'pattern match', if field is not immediately line_14: recognized. Pick off mirror motion determined from magnitude and line_15: direction of coma should be consistent with apparent field position line_16: change within latch uncertainites. The sign of any OTA focus contingency line_17: move will be obvious from pupil asymmetries if the focus is bad enough line_18: to need it. The needed refocus should be well within COSTAR's line_19: adjustment capability (4 mm) after the uncertainties in the OTA focus line_20: are taken into account. ! !end of general form text general_form_address: lname: BURROWS fname: CHRIS category: PI inst: ST SCI addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: 410-338-4913 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: WF2TARG descr_1: J,701 pos_1: RA=5H 38M 43.38S +/- 1S, pos_2: DEC=-69D 6' 4.7" +/- 1", equinox: 2000 fluxnum_1: 1 fluxval_1: V=10.2+/-0.1 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 0.500 targname: DARK config: S/C opmode: POINTING aperture: V1 num_exp: 1 time_per_exp: 1M priority: 1 req_1: CYCLE 4/.5-17; req_2: SEQ .5-4.5 NO GAP; comment_1: SWITCH TO TELEMETRY FORMAT FN ! linenum: 1.000 targname: DARK config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: DEF num_exp: 1 time_per_exp: 40S priority: 1 param_1: ATD-GAIN=15, ! linenum: 1.500 targname: DARK config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: DEF num_exp: 1 time_per_exp: 80S priority: 1 param_1: ATD-GAIN=15, ! linenum: 2.000 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F502N num_exp: 2 time_per_exp: 40S priority: 1 param_1: ATD-GAIN=15, ! linenum: 2.200 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F656N num_exp: 2 time_per_exp: 60S priority: 1 param_1: ATD-GAIN=15 ! linenum: 2.400 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F547M num_exp: 2 time_per_exp: 30S priority: 1 param_1: ATD-GAIN=15 ! linenum: 2.600 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F814W num_exp: 2 time_per_exp: 1S priority: 1 param_1: ATD-GAIN=15 ! linenum: 3.000 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F953N num_exp: 2 time_per_exp: 80S priority: 1 param_1: ATD-GAIN=15, ! linenum: 4.000 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F555W num_exp: 2 time_per_exp: 60S priority: 1 param_1: ATD-GAIN=15, ! linenum: 4.500 targname: DARK config: S/C opmode: POINTING aperture: V1 num_exp: 1 time_per_exp: 1M priority: 1 comment_1: SWITCH BACK TO TELEMETRY FORMAT AN ! linenum: 4.600 targname: DARK config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 20M priority: 1 req_1: RT ANALYSIS; comment_1: ADD INST = BDUMPSTR ! linenum: 5.000 targname: NONE config: WFPC2 opmode: POM num_exp: 1 time_per_exp: 30M priority: 1 req_1: AFTER 4.5 BY 10H +/- 1H; req_2: REQ UPLINK; req_3: RT ANALYSIS; comment_1: UPLINK POM ADJUSTMENTS IF NECESSARY ! linenum: 6.000 targname: NONE config: WFPC2 opmode: POM num_exp: 1 time_per_exp: 30M priority: 1 req_1: AFTER 5 BY 1H +/- 1H; req_2: REQ UPLINK; req_3: RT ANALYSIS; comment_1: UPLINK POM ADJUSTMENTS IF NECESSARY ! linenum: 7.000 targname: NONE config: WFPC2 opmode: POM num_exp: 1 time_per_exp: 30M priority: 1 req_1: AFTER 6 BY 1H +/- 1H; req_2: REQ UPLINK; req_3: RT ANALYSIS; comment_1: UPLINK POM ADJUSTMENTS IF NECESSARY ! linenum: 10.500 targname: DARK config: S/C opmode: POINTING aperture: V1 num_exp: 1 time_per_exp: 1M priority: 1 req_1: SEQ 10.5-14.5 NO GAP; req_2: AFTER 7; comment_1: SWITCH TO TELEMETRY FORMAT FN ! linenum: 11.000 targname: DARK config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: DEF num_exp: 1 time_per_exp: 40S priority: 1 param_1: ATD-GAIN=15, comment_1: LINES 11-14 SHOULD USE DIFFERENT, comment_2: INDEPENDENT GUIDE STARS FROM THE comment_3: OBSERVATIONS IN LINES 1-4. ! linenum: 11.500 targname: DARK config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: DEF num_exp: 1 time_per_exp: 80S priority: 1 param_1: ATD-GAIN=15, ! linenum: 12.000 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F502N num_exp: 2 time_per_exp: 40S priority: 1 param_1: ATD-GAIN=15, ! linenum: 12.200 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F656N num_exp: 2 time_per_exp: 60S priority: 1 param_1: ATD-GAIN=15 ! linenum: 12.400 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F547M num_exp: 2 time_per_exp: 30S priority: 1 param_1: ATD-GAIN=15 ! linenum: 12.600 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F814W num_exp: 2 time_per_exp: 1S priority: 1 param_1: ATD-GAIN=15 ! linenum: 13.000 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F953N num_exp: 2 time_per_exp: 80S priority: 1 param_1: ATD-GAIN=15, ! linenum: 14.000 targname: WF2TARG config: WFPC2 opmode: IMAGE aperture: PC1 sp_element: F555W num_exp: 2 time_per_exp: 60S priority: 1 param_1: ATD-GAIN=15, ! linenum: 14.500 targname: DARK config: S/C opmode: POINTING aperture: V1 num_exp: 1 time_per_exp: 1M priority: 1 comment_1: SWITCH BACK TO TELEMETRY FORMAT AN ! linenum: 15.000 targname: NONE config: WFPC2 opmode: POM num_exp: 1 time_per_exp: 30M priority: 1 req_1: AFTER 14 BY 37H +/- 1H; req_2: REQ UPLINK; req_3: RT ANALYSIS; comment_1: UPLINK POM AND/OR OTA ADJUST IF NEC ! linenum: 16.000 targname: NONE config: WFPC2 opmode: POM num_exp: 1 time_per_exp: 30M priority: 1 req_1: AFTER 15 BY 1H +/- 1H; req_2: REQ UPLINK; req_3: RT ANALYSIS; comment_1: UPLINK POM AND/OR OTA ADJUST IF NEC ! linenum: 17.000 targname: NONE config: WFPC2 opmode: POM num_exp: 1 time_per_exp: 30M priority: 1 req_1: AFTER 16 BY 1H +/- 1H; req_2: REQ UPLINK; req_3: RT ANALYSIS; comment_1: UPLINK POM AND/OR OTA ADJUST IF NEC ! ! end of exposure logsheet ! No scan data records found