Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 3382c Report Date: 09-May-96:18:34 Version: ********** Check-in Date: ********** 1.Proposal Title: HSP PHOTOMETRIC PERFORMANCE TEST - FAINT TARGETS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID SV/HSP Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Robert C. Bless UNIVERSITY OF WISCONSIN USA 608-262-1715 ------------------------------------------------------------------------------------ 7. Abstract This proposal defines the procedure for verifying the dynamic range, limiting magnitude, linearity and digital-to-analog relatability and overlap of the visual IDT (IDT#3) on HSP. It is intended to repeat the 13th and 15th magnitude stars that were missed during execution of SV/HSP 1385. For more details of the observations, please refer to 1385. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 0 10. Num targs pri: 0 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 3382c PI: Robert C. Bless Proposal Title: HSP PHOTOMETRIC PERFORMANCE TEST - FAINT TARGETS ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Pi R. C. Bless UNIVERSITY OF WISCONSIN USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. The observations will be obtained with the visual IDT (IDT#3) configured in both the digital and analog, single and star-sky modes. Along with SV/HSP 1385 11 photometric standards will be observed with several stars in the range 6 < V < 10 mag., in common with both observing modes. The first star is acquired in the 10 arcsec finding aperture of IDT#3 (VIS). The star is then positioned to a selected 1.0 arcsec aperture (F551W). If the star is between 6 < V < 10 mag., the IDT is configured in the analog and digital star-sky mode (i.e. DATA-FORMAT=ALL) with sky background obtained through the 1.0 arcsec aperture and an integration is performed. For stars fainter than tenth magnitude, the IDT is used only in the digital star-sky mode and sky background is obtained through the 1.0 arcsec aperture. This test should be completed in a one week period. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Pointing Stability: Coarse track is understood to have less than 19 marcsec stability. That is satisfactory for all observations in the 10" and 1.0" UV1, UV2, and VIS IDT apertures, the PMT, and the 6.0" (finding) POL IDT aperture. HSP requires fine lock for all observations in the 0.65" POL IDT aperture and in all the 0.4" apertures. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. No special calibrations, dark time, or uninterupted exposures are requested. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data reduction consists of deriving instrumental count rates, correcting for sky background and deadtime losses (in the digital data). Instrumental magnitudes are then calculated and transformed to the Johnson V standard photometric system. In data analysis, the transformed V magnitudes are compared to the ground-based values and a weighted least squares fit is performed to determine deviations from linearity, dynamic range, and relatability of analog versus digital observations. Deadtime corrections will be compared with results from ground-based testing and supplied to the Calibration Data Base (CDB). ------------------------------------------------------------------------------------ 8. Additional comments or special requests. No supporting or coordinated observations with other facilites are anticipated. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). Data reduction and analysis will be supported on two computer facilities at the University of Wisconsin in Madison: a) A VAX 11/780 computer under the VMS operating system with extensive applications software. b) A microVAX cluster under the ULTRIX operating system Both the computer facilities support the FITS tape standard and thus can readily access the ST-FITS data export products. ------------------------------------------------------------------------------------ 11. Address Information Page 3 Name: ROBERT C. BLESS Category: PI Institution: UNIVERSITY OF WISCONSIN Address: City: State: Zip Code: Country: Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ Name: JOE F. DOLAN Category: CON Institution: GSFC Address: CODE 681 City: GREENBELT State: MD Zip Code: 20771 Country: USA Telephone: 301-344-5920 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 3382c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 28 GICLAS153-41 STANDARD STAR NEAR RA=16H 17M 55.433S +/- 1", 2000 1 V=13.42,B-V=-0.22 SELECTED AREA 107 DEC=-15D 35' 49.272 " +/- 1" Comments: ST EQUATORIAL STANDARD MAGREF = ST ATLAS POSREF = PICKLES ------------------------------------------------------------------------------------------------------------------------------------ 29 SA101-330 STANDARD STAR IN RA=09H 56M 20.551S +/- 1", 2000 1 V=13.71,B-V=0.58 SELECTED AREA 101 DEC=-0D 27' 22.932" +/- 1" Comments: ST EQUATORIAL STANDARD MAGREF = ST ATLAS POSREF = PICKLES ------------------------------------------------------------------------------------------------------------------------------------ 30 SA95-42 STANDARD STAR IN RA=03H 53M 43.67S +/- 1", 2000 1 V=15.61,B-V=-0.22 SELECTED AREA 95 DEC=-0D 04' 33.0" +/- 1", PLATE-ID=018B, Comments: MAGREF = ST ATLAS POSREF = ST ATLAS ------------------------------------------------------------------------------------------------------------------------------------ 31 G60-54 STANDARD STAR IN ST RA=13H 00M 09.53S +/- 1", 2000 1 V=15.81,B-V=0.65 ATLAS DEC=+03D 28' 55.7" +/- 1", PLATE-ID=00ZW, Comments: MAGREF = ST ATLAS POSREF = ST ATLAS ------------------------------------------------------------------------------------------------------------------------------------ 32 GD248 STANDARD STAR IN ST RA=23H 26M 06.69S +/- 1", 2000 1 V=15.09,B-V=.09 ATLAS DEC=+16D 00' 21.4" +/- 1", PLATE-ID=02BB Comments: MAGREF = ST ATLAS POSREF = ST ATLAS ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3382c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 33 DEFINE # HSP/ ACQ DATA- 1 24S 1 1 ONBOARD ACQ FOR 34 DIG2 VIS FORMAT=WORD SEQ 33-34 NO GAP Comments: NOTE SAMPLE-TIME=0.01S FOR ACQ. ------------------------------------------------------------------------------------------------------------------------------------ 34 DEFINE # HSP/ STAR- 1.0-A F551W SAMPLE-TIME=1.0 1 1040S 1 ^ DIG2 VIS SKY DATA- FORMAT=WORD Comments: SKY-SAMPLE=0.4. ------------------------------------------------------------------------------------------------------------------------------------ 35 USE GICLAS153- SELECT 1 OF 35 OR DIG2 41 36 COND IF TARGET AVAILABLE CYCLE 0/35-41 ------------------------------------------------------------------------------------------------------------------------------------ 36 ^ SA101-330 COND IF TARGET AVAILABLE Comments: 13TH MAGNITUDE RANGE. ------------------------------------------------------------------------------------------------------------------------------------ 37 DEFINE # HSP/ ACQ DATA- 1 132S 1 1 ONBOARD ACQ FOR 38 DIG3 VIS FORMAT=WORD SEQ 37-38 NO GAP Comments: NOTE SAMPLE-TIME=0.01S FOR ACQ. ------------------------------------------------------------------------------------------------------------------------------------ 38 DEF # HSP/ STAR- 1.0-A F551W SAMPLE- 1 4400S 1 1 DIG3 VIS SKY TIME=10.0 DATA- FORMAT=WORD SKY-SAMPLE=1.0 ------------------------------------------------------------------------------------------------------------------------------------ 39 USE SA95-42 SELECT 1 OF 39 OR DIG3 40 OR 41 COND IF TARGET AVAILABLE ------------------------------------------------------------------------------------------------------------------------------------ 40 USE G60-54 COND IF TARGET DIG3 AVAILABLE ------------------------------------------------------------------------------------------------------------------------------------ 41 USE GD248 COND IF TARGET DIG3 AVAILABLE Comments: 15TH MAGNITUDE RANGE. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 3382c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HSP/VIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ STAR-SKY ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters DATA-FORMAT=WORD SAMPLE-TIME=1.0 SAMPLE-TIME=10.0 SKY-SAMPLE=1.0 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for SV/HSP ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 34; SEQ 33-34 NO GAP; SELECT 1 OF 35 OR 36; COND IF TARGET AVAILABLE; CYCLE 0/35-41; ONBOARD ACQ FOR 38; SEQ 37-38 NO GAP; SELECT 1 OF 39 OR 40 OR 41; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F551W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GICLAS153-41 SA101-330 SA95-42 G60-54 GD248 ------------------------------------------------------------------------------------------------------------------------------------