6932( 4) - 10/09/96 15:27 - [ 0] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6932 Version: 4 Check-in Date: 09-Oct-1996 15:24:45 1.Proposal Title: FOC Cycle 6 UV Flatfield ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle CAL/FOC 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: ROBERT JEDRZEJEWSKI SPACE TELESCOPE SCIENCE INSTITUTE CoI: A. Nota STSCI N CoI: M. Voit STSCI N CoI: W. Hack STSCI N ------------------------------------------------------------------------------------ 6. Abstract The relative pixel-to-pixel response at UV wavelengths of the FOC over the entire field of view was measured in Cycle 4 using a selected region of the Orion Nebula for the purposes of flat field illumination. The final two exposures were not written to tape properly, so the data set was incomplete. This observation is a re- execution of those exposures, bringing the quality of the F220W flatfield up to that of the F140W flatfield. ------------------------------------------------------------------------------------ Observations Description ------------------------ Fields near the trapezium in the Orion Nebula are relatively flat on the scales of the FOC resolution. We will image three fields, with 1" offset between, to fill the gap caused by the loss of the last 2 images from the Cycle 4 dataset (program 5526). We will also image the REFSTAR field, as in Cycle 4, to provide a pointing reference. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: STSCI Ship Via: UPS Email: rij@stsci.edu , ------------------------------------------------------------------------------------ 6932( 4) - 10/09/96 15:27 - [ 1] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 FFT9 Calibration;Flat Field RA=5H 35M 21.2S +/- 0.1S, DEC=- 2000 V = 15 5D 21' 18.0" +/- 0.5" 2 FFT9-H Calibration;Flat Field XI-OFF=0" +/- 0.1", ETA-OFF=1" 2000 V = 15 +/- 0.1", FROM 1 3 FFT9-I Calibration;Flat Field XI-OFF=-1" +/- 0.1", ETA-OFF=0" 2000 V = 15 +/- 0.1", FROM 1 4 REFSTAR Calibration;Flat Field RA=5H 35M 20.2S +/- 0.03S, DEC=- 2000 V = 15 5D 20' 57.0" +/- 0.5" 6932( 4) - 10/09/96 15:27 - [ 2] Visit: 01 Visit Requirements: ORIENT 13D to 14D On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 REFSTAR FOC/96 ACQ 512X102 F195W, PIXEL=50X25,CHECK-FILTER=YES 1 500 S INT ACQ for 14 4 F342W ------------------------------------------------------------------------------------------------------------------------------------ 14 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED=GREEN-2, 1 600 S 4 LED-STEP=24 ------------------------------------------------------------------------------------------------------------------------------------ 16 DARK FOC/96 IMAGE 512X102 F220W PIXEL=50X25,CHECK-FILTER=YES 1 600 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 20 REFSTAR FOC/96 IMAGE 512X102 F195W, CHECK-FILTER=YES 1 1173 S SEQ 20-30 NON-INT 4 F342W ------------------------------------------------------------------------------------------------------------------------------------ 30 FFT9 FOC/96 IMAGE 512X102 F220W CHECK-FILTER=YES 1 1173 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 34 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED=GREEN-2, 1 600 S 4 LED-STEP=24 ------------------------------------------------------------------------------------------------------------------------------------ 36 DARK FOC/96 IMAGE 512X102 F220W PIXEL=50X25,CHECK-FILTER=YES 1 600 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 40 FFT9-H FOC/96 IMAGE 512X102 F220W PIXEL=50X25 1 1285 S SEQ 40-50 NON-INT 4 ------------------------------------------------------------------------------------------------------------------------------------ 50 FFT9-I FOC/96 IMAGE 512X102 F220W PIXEL=50X25 1 1285 S 4 ------------------------------------------------------------------------------------------------------------------------------------ 6932( 4) - 10/09/96 15:27 - [ 3] Summary Form for Proposal 6932 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOC/96 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ RESEAU IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PIXEL=50X25 CHECK-FILTER=YES LED-STEP=24 LED=GREEN-2 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category CAL/FOC ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 13D to 14D INT ACQ for 14 SEQ 20-30 NON-INT SEQ 40-50 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F195W,F342W CLEAR F220W ------------------------------------------------------------------------------------------------------------------------------------ Target Names REFSTAR INTFLAT DARK FFT9 FFT9-H FFT9-I ------------------------------------------------------------------------------------------------------------------------------------