6894( 4) - 03/27/97 14:27 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6894 Version: 4 Check-in Date: 27-Mar-1997 14:18:13 1.Proposal Title: FOC/96 Cycle 6 Aperture Location Monitor ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle CAL/FOC 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: ROBERT JEDRZEJEWSKI SPACE TELESCOPE SCIENCE INSTITUTE CoI: W. Hack STSCI N ------------------------------------------------------------------------------------ 6. Abstract The principle objective is to monitor the location fo the post-COSTAR F/96 aperture with respect to the V2V3 coordinate frame throughout Cycle 6. The orientation of the detector and the reseaux axes with respect to the V2V3 axes will be used to update the PDB in the event that a significant shift in the aperture is detected. ------------------------------------------------------------------------------------ Observations Description ------------------------ Use blind pointing to acquire the selected NGC 188 astrometric field. A series of three blind pointings at the astrometric targets used in the Cycle 5 aperture monitoring proposal will be taken to determine the location of the aperture center. This test is critical for verifying that the proper aperture location populates the PDB, something for which only astrometric observations can be used to obtain the necessary accuracy. An internal flatfield taken after the external observations will provide a monitor of the geometric distortion of the detector. The observing sequence will be executed twice in Cycle 6. Real Time Justification ----------------------- Calibration Justification ------------------------- The small field of view for the FOC requires highly accurate pointing in order to be assured of acquiring the target. This proposal will monitor the absolute position of the detector with respect to the FGSs in order to eliminate errors in the pointing due to the aperture location. Additional Comments ------------------- ------------------------------------------------------------------------------------ 6894( 4) - 03/27/97 14:27 - [ 2] Data Distribution Media: 8MM Blocking Factor: 10 Ship To: STSCI Ship Via: UPS Email: ------------------------------------------------------------------------------------ 6894( 4) - 03/27/97 14:27 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC188-5 Calibration, RA=00H 46M 51.474S +/- 0.01S, 2000 V = 15 Astrometric DEC=+85D 14' 32.95" +/- 0.05", PLATE-ID=ZZZZ Comments: Astrometric Field 2 NGC188-54 Calibration, RA=00H 46M 40.526S +/- 0.01S, 2000 V = 15 Astrometric DEC=+85D 14' 39.445" +/- 0.05", PLATE-ID=ZZZZ Comments: Astrometric Field 3 NGC188-51 Calibration, RA=00H 46M 33.693S +/- 0.01S, 2000 V = 15 Astrometric DEC=+85D 14' 33.459" +/- 0.05", PLATE-ID=ZZZZ Comments: Astrometric Field 6894( 4) - 03/27/97 14:27 - [ 4] Visit: 01 Visit Requirements: PCS MODE F 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 DARK S/C POINTIN V1 1 1 M G ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC188-5 FOC/96 IMAGE 512X102 F430W, PIXEL=50X25 1 600 S 4 F6ND,F1ND ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC188-54 FOC/96 IMAGE 512X102 F430W, PIXEL=50X25 1 600 S 4 F6ND,F1ND ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC188-51 FOC/96 IMAGE 512X102 F430W, PIXEL=50X25 1 600 S 4 F6ND,F1ND ------------------------------------------------------------------------------------------------------------------------------------ 5 DARK S/C POINTIN V1 1 1 M G ------------------------------------------------------------------------------------------------------------------------------------ 6 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED=GREEN-2, 1 15 M END ORBIT 4 LED-STEP=24 ------------------------------------------------------------------------------------------------------------------------------------ 6894( 4) - 03/27/97 14:27 - [ 5] Visit: 02 Visit Requirements: PCS MODE F 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 DARK S/C POINTIN V1 1 1 M G ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC188-5 FOC/96 IMAGE 512X102 F430W, PIXEL=50X25 1 600 S 4 F6ND,F1ND ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC188-54 FOC/96 IMAGE 512X102 F430W, PIXEL=50X25 1 600 S 4 F6ND,F1ND ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC188-51 FOC/96 IMAGE 512X102 F430W, PIXEL=50X25 1 600 S 4 F6ND,F1ND ------------------------------------------------------------------------------------------------------------------------------------ 5 DARK S/C POINTIN V1 1 1 M G ------------------------------------------------------------------------------------------------------------------------------------ 6 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED=GREEN-2, 1 15 M END ORBIT 4 LED-STEP=24 ------------------------------------------------------------------------------------------------------------------------------------ 6894( 4) - 03/27/97 14:27 - [ 6] Summary Form for Proposal 6894 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations S/C FOC/96 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes POINTING IMAGE RESEAU ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PIXEL=50X25 LED-STEP=24 LED=GREEN-2 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category CAL/FOC ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE F END ORBIT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F430W,F6ND,F1ND CLEAR ------------------------------------------------------------------------------------------------------------------------------------ Target Names DARK NGC188-5 NGC188-54 NGC188-51 INTFLAT ------------------------------------------------------------------------------------------------------------------------------------