! File: 3141C.PROP ! Database: PEPDB ! Date: 18-FEB-1994:19:03:39 coverpage: title_1: FOC OBJECTIVE PRISMS--WAVELENGTH AND PHOTOMETRIC CALIBRATION-REVISED proposal_for: SV/FOC pi_title: DR. pi_fname: FRANCESCO pi_lname: PARESCE pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA foc: X ! end of coverpage abstract: line_1: The aims are as follows: line_3: 1. The four objective prisms of the FOC will be wavelength calibrated using line_4: planetary nebula #8 in NGC205. line_6: 2. The two prisms of the f/96 chain will be photometrically calibrated by line_7: using the faint spectrophotometric standards, LB227, HZ4, and HZ21, through line_8: the FUV prism combined with the filter F140M, and through the NUV prism line_9: combined with F195W. line_11: 3. To verify the precise value of offset required to place the target at the line_12: nominal objective-prism center. line_14: All targets are drawn from the ST ScI lists concerning wavelength and line_15: spectrophotometric standards. ! ! end of abstract general_form_proposers: lname: PARESCE fname: FRANCESCO title: DR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: Prerequisites: Optical Focus Test (FOC-03; 1507), line_2: Mode III target acquisition ! question: 3 section: 1 line_1: Important characteristics of the objective prisms are the dimensions and line_2: displacements of the dispersed images on the FOC detectors. The following line_3: table lists the anticipated lengths and average offsets: line_5: length mean offset line_6: FUV/96 lambda 1200-lambda 6000 3.9 arcsec 7.6 arcsec line_7: NUV/96 lambda 1850-lambda 6000 9.7 arcsec 2.2 arcsec line_8: FUV/48 lambda 1200-lambda 6000 3.9 arcsec 7.7 arcsec line_9: NUV/48 lambda 1850-lambda 6000 4.9 arcsec 1.3 arcsec line_11: The objective prism modes of the two cameras will be used in rather different line_12: fashion. In f/96 the prisms will primarily be used as low-dispersion line_13: spectrographs. Hence for each of these modes we intend to define a "standard" line_14: wavelength and photometrically calibrated position in the central 512x512 line_15: format using the mean offsets listed above. A suitable target for wavelength line_16: calibration is the planetary #8 in NGC205. An exposure of this object in each line_17: of the "standard" positions should suffice. For the f/96 photometric line_18: calibration we propose to observe one of the standards LB227, HZ4, line_19: HZ21 and BPM16274 (in order of decreasing priority), through the FUV prism line_20: combined with F140M and through the NUV prism combined with F195W. These line_21: exposures will also provide information on the filter red-leaks. line_22: The f/48 prisms will on the other hand mainly be used in the zoomed 1024x512 line_23: formats in the serendipity survey mode. Due to saturation problems we propose ! question: 3 section: 2 line_1: only to provide standard dispersion laws for the prisms of this chain. These line_2: can be determined by observing the NGC 205 planetary first through F165W alone line_3: and thereafter through the FUV and NUV prisms. line_9: Normally, in direct image mode the telescope will be positioned so as to place line_10: the required target in the nominal center of the FOC aperture. (This normal line_11: center will presumably be close to the actual center of the camera format, line_12: unless there are blemishes, reseau or the like at the actual center; this line_13: nominal center is TBD.) line_15: However, in the case of the objective prisms, they yield a dispersed image line_16: which is displaced (by a few arcsec--depending on the prism) from the direct line_17: image of the object. In order to provide the observer with both wavelength and line_18: photometric data, we require that the dispersed image be placed always at the line_19: same nominal position--irrespective of prism used. This means that prism line_20: pointings will contain small offsets, and it is the aim of the SV tests to line_21: confirm the values for these offsets--as well as to provide the necessary line_22: wavelength and spectrophotometry data for their calibration. line_23: All observations are cycle 0. ! question: 3 section: 3 line_1: CONTINUATION OF COMMENTS FROM EXPOSURE LOGSHEET: line_3: 15. THESE OBSERVATIONS ALSO PROVIDE A CHECK OF THE PRISM OFFSET VALUES line_4: (REQUIRED FOR "SEQD". SEQD IS THE PHOTOMETRIC CALIBRATION. THE TARGET line_5: POSITION FOR 7 AND 8 MAY HAVE TO BE REVISED AFTER PRELIMINARY ANALYSIS line_6: OF 1-3. HENCE SEQD SHOULD BE SCHEDULED LATER IN SV. ! !end of general form text general_form_address: lname: PARESCE fname: FRANCESCO category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE ! lname: PARESCE fname: F. title: DR. category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: 301-338-4823 telex: 684-9101-STSCI ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC205-8 descr_1: PLANETARY NEBULA descr_2: WAVELENGTH STANDARD pos_1: RA=00H 38M 57.88S +/- 0.1S, pos_2: DEC=41D 30' 10.91" +/- 1", pos_3: PLATE-ID=01JV equinox: 2000 pm_or_par: N plate_req: N ! targnum: 2 name_1: LB227 name_2: GSC1255-744 descr_1: UV STANDARD pos_1: RA=04H 09M 28.76S +/- 0.1S, pos_2: DEC=17D 07' 54.4" +/- 1", pos_3: PLATE-ID=000O equinox: 2000 pm_or_par: N plate_req: ^ fluxnum_1: 2 fluxval_1: V=15.35, TYPE=DA4 ! targnum: 3 name_1: HZ4 name_2: GSC659-27 descr_1: ^ pos_1: RA=03H 55M 21.7S +/- 0.1S, pos_2: DEC=+9D 47' 18.7" +/- 1", pos_3: PLATE-ID=02HA equinox: ^ pm_or_par: ^ plate_req: ^ fluxnum_1: 2 fluxval_1: V=14.47, TYPE=DA4 ! targnum: 4 name_1: HZ21 name_2: GSC2527-2161 descr_1: ^ pos_1: RA=12H 13M 56.42S +/- 0.1S, pos_2: DEC=+32D 56M 30.8" +/- 1", pos_3: PLATE-ID=00Y2 equinox: ^ pm_or_par: ^ plate_req: ^ fluxnum_1: 2 fluxval_1: V=14.22, TYPE=DO1 ! targnum: 5 name_1: BPM16274 name_2: GSC8037-364 descr_1: ^ pos_1: RA=00H 50M 3.18S +/- 0.1S, pos_2: DEC=-52D 08' 17.4" +/- 1", pos_3: PLATE-ID=02PU equinox: 2000 fluxnum_1: 1 fluxval_1: V=14.22, TYPE=DA2 ! targnum: 7 name_1: FORNAX name_2: NEB descr_1: PLANETARY NEBULA descr_2: WAVELENGTH STANDARD pos_1: RA=02H 39M 49.26S +/- 0.1S, pos_2: DEC=-35D 32' 50.39" +/- 1", pos_3: PLATE-ID=02IV equinox: 2000 comment_1: ALTERNATE TARGET. ! targnum: 8 name_1: RX-PUP descr_1: SYMBIOTIC descr_2: WAVELENGTH STANDARD pos_1: RA=08H 14M 12.4S +/- 0.1S, pos_2: DEC=-41D 42' 28" +/- 1" equinox: 2000 fluxnum_1: 1 fluxval_1: V=11.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: RX-PUP config: FOC/96 opmode: ACQ aperture: 512X1024 sp_element: F486N num_exp: 1 time_per_exp: 5M priority: 1 param_1: PIXEL=50X25, req_1: SEQ 1-6 NO GAP; req_2: CYCLE 0 / 1-16; req_3: INT ACQ FOR 2-5; ! linenum: 2.000 targname: RX-PUP config: ^ opmode: IMAGE aperture: 512X512 sp_element: F486N num_exp: ^ time_per_exp: 10M priority: 1 ! linenum: 3.000 targname: ^ config: ^ opmode: ^ aperture: 512X512 sp_element: PRISM1,F195W num_exp: 1 time_per_exp: 15M priority: 1 ! linenum: 4.000 targname: ^ config: ^ opmode: ^ aperture: 512X512 sp_element: F501N num_exp: 1 time_per_exp: 10M priority: 1 ! linenum: 5.000 targname: ^ config: ^ opmode: ^ aperture: 512X512 sp_element: PRISM2,F195W num_exp: 1 time_per_exp: 15M priority: 1 ! linenum: 6.000 targname: INTFLAT config: ^ opmode: RESEAU aperture: ^ num_exp: 1 time_per_exp: 5M priority: 1 param_1: LED=YELLOW-2, param_2: LED-STEP=32 ! linenum: 7.000 targname: RX-PUP config: FOC/48 opmode: ACQ aperture: 512X1024 sp_element: F150W num_exp: 1 time_per_exp: 5M priority: 1 param_1: PIXEL=50X25 req_1: SEQ 7-10.5 NO GAP; req_2: INT ACQ FOR 8-10.5; ! linenum: 8.000 targname: RX-PUP config: ^ opmode: IMAGE aperture: 512X512 sp_element: F150W num_exp: 1 time_per_exp: 10M priority: 1 ! linenum: 9.000 targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: PRISM1,F150W num_exp: 1 time_per_exp: 15M priority: 1 ! linenum: 10.000 targname: RX-PUP config: FOC/48 opmode: IMAGE aperture: 512X512 sp_element: PRISM2,F150W num_exp: 1 time_per_exp: 15M priority: 1 ! linenum: 10.500 targname: RX-PUP config: FOC/48 opmode: IMAGE aperture: 512X512 sp_element: PRISM3,F275W num_exp: 1 time_per_exp: 15M priority: 1 ! linenum: 11.500 sequence_1: DEF SEQD96 targname: # config: FOC/96 opmode: IMAGE aperture: 512X512 sp_element: PRISM1,F140M num_exp: 1 time_per_exp: 15M priority: # req_1: POS TARG 0, -7.6; req_2: DARK TIME; ! linenum: 12.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: PRISM2,F195W num_exp: ^ time_per_exp: 15M priority: # req_1: DARK TIME; req_2: POS TARG 0,-2.2; ! linenum: 12.500 sequence_1: DEF SEQD48 targname: # config: FOC/48 opmode: IMAGE aperture: 512X512 sp_element: PRISM2,F195W num_exp: 1 time_per_exp: 15M priority: # req_1: DARK TIME; ! linenum: 12.600 sequence_1: ^ targname: ^ config: FOC/48 opmode: ^ aperture: ^ sp_element: PRISM1,F150W num_exp: ^ time_per_exp: 15M priority: # req_1: DARK TIME; ! linenum: 12.700 sequence_1: ^ targname: ^ config: FOC/48 opmode: ^ aperture: ^ sp_element: PRISM3,F275W num_exp: ^ time_per_exp: 15M priority: # req_1: DARK TIME; ! linenum: 13.000 sequence_1: USE SEQD48 targname: LB227 priority: 1 req_1: AFTER 10.5 BY 20D; comment_1: TARGETS AVAILABLE BY PRIORITY comment_2: 1-LB227, 2-HZ4, 3-HZ21, 4-BPM16274 ! linenum: 14.000 sequence_1: USE SEQD48 targname: HZ4 priority: 1 req_1: AFTER 10.5 BY 20D; ! linenum: 15.000 sequence_1: USE SEQD96 targname: BPM16274 priority: 1 req_1: AFTER 6 BY 20D; comment_1: 1-6 PROVIDE WAVELENGTH comment_2: CALIBRATION. comment_4: COMMENTS CONTINUED IN GENERAL FORM comment_5: SECTION 3. ! linenum: 16.000 sequence_1: USE sequence_2: SEQD96 targname: HZ4 priority: 1 req_1: AFTER 6 BY 20D; ! ! end of exposure logsheet ! No scan data records found