! File: 3009C.PROP ! Database: PEPDB ! Date: 18-FEB-1994:10:06:41 coverpage: title_1: SAT OBSERVATION: NUCLEUS OF A NEARBY NORMAL GALAXY sci_cat: GALAXIES & CLUSTERS proposal_for: SAT/WFC pi_title: PROF. pi_fname: JAMES pi_mi: A. pi_lname: WESTPHAL pi_inst: CALTECH pi_country: USA pi_phone: (818)356-4900 keywords_1: GALACTIC NUCLEI, GALACTIC BULGES, LOCAL GROUP, DUST keywords_2: LANES, GLOBULAR CLUSTERS, SURFACE PHOTOMETRY hours_pri: 1.62 num_pri: 1 pi_position: PROFESSOR OF PLANETA ! end of coverpage abstract: line_1: Direct images of the nucleus of a nearby early-type galaxy NGC 7457 line_2: will be used to assess the utility of WFPC images for deconvolution and other line_3: image processing techniques. The galaxy will be imaged with the line_4: F555W and F785LP filters. The PSF must be measured once per WF/PC SAT line_5: "campaign" or if the mirror position has changed or more than 7 days have line_6: passed since the last calibration. ! ! end of abstract general_form_proposers: lname: WESTPHAL fname: JAMES mi: A. inst: CALTECH country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: Direct exposures are proposed with the Planetary Camera and filters F555W and line_2: F785LP of duration 2 sec to 2700 sec. Desired S/N is 100 in the central pixel. line_3: Shorter exposures are included for cosmic ray removal and possible stellar line_4: nuclear components. Multiple exposures are taken to provide independent data line_5: data sets and improve signal-to-noise. PSF calibrations are taken of a region line_6: in NGC 188, in prop 3013. ! question: 4 section: 1 line_1: Instrument calibration. ! question: 6 section: 1 line_1: Limiting noise source is readout noise; exposures should not be interrupted. line_2: Interim telescope focus and collimation should be adopted, and camera should line_3: should be UV-flooded (if we are using a flood). Avoid SAA for all exposures. ! question: 8 section: 1 line_1: Special orientations: None. ! question: 13 section: 1 line_1: The nuclear luminosity distribution and color gradient will be studied line_2: using filters F555W and F785LP and the Planetary Camera. Image deconvolution line_3: techniques will be tested and the results compared to ground-based images of line_4: the same galaxy. The image will be searched for bright stars, globular line_5: clusters, and interstellar dust. ! !end of general form text general_form_address: lname: WESTPHAL fname: JAMES mi: A. category: PI inst: CALTECH ! lname: LIGHT fname: ROBERT category: CON inst: WF/PC TEAM addr_1: BOWIE STATE UNIVERSITY addr_2: 14000 JERICHO PARK ROAD city: BOWIE state: MD zip: 20715 country: USA phone: (301)464-9624 ! lname: FABER fname: SANDRA category: CON inst: WF/PC TEAM addr_1: BOWIE STATE UNIVERSITY addr_2: 14000 JERICHO PARK ROAD city: BOWIE state: MD zip: 20715 country: USA phone: (301)464-9624 ! lname: GUNN fname: JAMES mi: E. category: CON inst: PRINCETON UNIVERSITY addr_1: ASTROPHYSICAL SCIENCE addr_2: PEYTON HALL city: PRINCETON state: NJ zip: 08540 country: USA phone: (609)452-3800 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC7457 descr_1: NEARBY S0 GALAXY pos_1: RA=23H 01M 00.0S +/- 2", pos_2: DEC= +30D 08' 42"+/-2" equinox: 2000 rv_or_z: V=850 fluxnum_1: 1 fluxval_1: SURF(V)=17.24 +/- 0.5 fluxnum_2: 2 fluxval_2: SURF(I)=16.24 +/- 0.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: NGC7457 config: PC opmode: IMAGE aperture: P5 sp_element: F555W num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SAME ORIENT FOR 2-4 AS 1; req_2: SAME POS FOR 2-4 AS 1; req_3: GUID TOL 0.010"; req_4: NON-INT / 1-10; req_5: GROUP 1-10 WITHIN 1D; req_6: CYCLE 0 / 1-10 comment_1: FINE LOCK FOR LINES 1-10. comment_2: AVOID SAA FOR ALL EXPOSURES. ! linenum: 2.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES ! linenum: 3.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 400S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES ! linenum: 4.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 400S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES ! linenum: 7.000 targname: NGC7457 config: PC opmode: IMAGE aperture: P5 sp_element: F785LP num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES req_1: SAME ORIENT FOR 8-10 AS 7; req_2: SAME POS FOR 8-10 AS 7 ! linenum: 8.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES ! linenum: 9.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: ^ num_exp: 1 time_per_exp: 400S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES ! linenum: 10.000 targname: NGC7457 config: PC opmode: IMAGE aperture: P5 sp_element: F785LP num_exp: 1 time_per_exp: 400S fluxnum_1: 1 priority: 1 param_1: CR-SPLIT=NO,PRE-FLASH=YES comment_1: RUN PSF CALIBRATION IN NGC188 FROM comment_2: SAT PROP 3013 FOR THESE OBSERVATIONS. ! ! end of exposure logsheet ! No scan data records found