6162( 8) - 01/29/96 12:26 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6162 Version: 8 Check-in Date: 29-Jan-1996 12:08:24 1.Proposal Title: FOC Cycle 5 PSF Monitoring ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle CAL/FOC 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: R. Jedrzejewski STSCI CoI: A. Nota STSCI N ------------------------------------------------------------------------------------ 6. Abstract This proposal has two parts. The first part is a COSTAR DOB move to adjust the COSTAR focus position for the FOC to the value that will ensure that the FOC focus is within +/- 1.5-2 microns over the next four months. The second part consists of images of a spectrophotometric standard star in the f/96 relay to verify whether the DOB move executed was correct. Data will be taken 4 times during the cycle. ------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 2] Observations Description ------------------------ A mode I target acquisition will be used to position the standard star in the center of the F/96 256X256 aperture. A series of 3 observations will then be performed using different FOC filters. The F278M filter will be used to measure the pseudo-strehl ratio, while the two F486N images will be used for Phase Retrieval. A set of internal flatfield images will be taken during occultation to monitor the geometric stability. Real Time Justification ----------------------- The COSTAR DOB is moved by real-time commands. This is because we do not know what movement of the DOB will be required. The actual DOB movement requested will be delivered at least 1 week before the COSTAR DOB move is scheduled, based on analysis of FOC images taken in the preceeding months. An INT ACQ is required in order to acquire the star in the smallest format. This format is necessary in order to obtain the highest S/N observations in the shortest time. Calibration Justification ------------------------- The COSTAR-corrected FOC is very sensitive to small focus errors. For example, a 5 micron defocus can change the pseudo-strehl ratio to about one-third of its optimally-focussed value, with an obvious negative effect on science image quality. The OTA is focussed every 6 months to keep the WFPC2 in focus, but at the current desorption rate this only maintains the focus to +/- 2.5 microns. With orbital variations of +/- 2 microns common, the resultant defocus could ruin some FOC data. We propose to change the COSTAR DOB focus every 3 months to keep the mean focus position correct to about 1.2-1.3 microns. Any more regular changes would be ineffective, since the breathing effect is of this order. Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 BPM16274 Calibration, Star RA=00H 50M 3.18S +/- 1S, DEC=- 2000 V = 14.2+/-2 52D 08' 17.4" +/- 0.5", PLATE- ID=009H 2 HZ4 Calibration, Star RA=03H 55M 21.58S +/- .01S, 2000 V = 14.54+/-2 DEC=+9D 47' 19.32" +/- 0.1", PLATE-ID=02HA 6162( 8) - 01/29/96 12:26 - [ 4] Visit: 01 Visit Requirements: 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 NONE COSTAR DOB 1 15M REQ UPLINK; RT ANALYSIS Comments: COSTAR DOB move ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 5] Visit: 02 Visit Requirements: 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 BPM16274 FOC/96 ACQ 512X102 F278M,F4N PIXEL=50X25 1 10M INT ACQ for 11 4 D ------------------------------------------------------------------------------------------------------------------------------------ 11 BPM16274 FOC/96 IMAGE 256X256 F278M,F4N 1 213S D ------------------------------------------------------------------------------------------------------------------------------------ 12 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=26 ------------------------------------------------------------------------------------------------------------------------------------ 14 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=30 ------------------------------------------------------------------------------------------------------------------------------------ 20 BPM16274 FOC/96 IMAGE 256X256 F278M,F4N 1 212S D ------------------------------------------------------------------------------------------------------------------------------------ 21 BPM16274 FOC/96 IMAGE 256X256 F486N 2 900S ------------------------------------------------------------------------------------------------------------------------------------ 31 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=29 ------------------------------------------------------------------------------------------------------------------------------------ 32 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=25 ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 6] Visit: 03 Visit Requirements: BETWEEN 19-NOV-1995 AND 1-DEC-1995 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 NONE COSTAR DOB 1 15M REQ UPLINK; RT ANALYSIS Comments: COSTAR DOB move ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 7] Visit: 04 Visit Requirements: AFTER 3 BY 1D TO 3D 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 BPM16274 FOC/96 ACQ 512X102 F278M,F4N PIXEL=50X25 1 10M INT ACQ for 11 4 D ------------------------------------------------------------------------------------------------------------------------------------ 11 BPM16274 FOC/96 IMAGE 256X256 F278M,F4N 1 213S D ------------------------------------------------------------------------------------------------------------------------------------ 12 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=24 ------------------------------------------------------------------------------------------------------------------------------------ 14 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=28 ------------------------------------------------------------------------------------------------------------------------------------ 20 BPM16274 FOC/96 IMAGE 256X256 F278M,F4N 1 212S D ------------------------------------------------------------------------------------------------------------------------------------ 21 BPM16274 FOC/96 IMAGE 256X256 F486N 2 900S ------------------------------------------------------------------------------------------------------------------------------------ 31 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=27 ------------------------------------------------------------------------------------------------------------------------------------ 32 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=23 ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 8] Visit: 05 Visit Requirements: AFTER 3 BY 57D TO 80D 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 NONE COSTAR DOB 1 15M REQ UPLINK; RT ANALYSIS Comments: COSTAR DOB move ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 9] Visit: 06 Visit Requirements: AFTER 5 BY 1D TO 3D 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 BPM16274 FOC/96 ACQ 512X102 F278M,F4N PIXEL=50X25 1 10M INT ACQ for 11 4 D ------------------------------------------------------------------------------------------------------------------------------------ 11 BPM16274 FOC/96 IMAGE 256X256 F278M,F4N 1 213S D ------------------------------------------------------------------------------------------------------------------------------------ 12 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=22 ------------------------------------------------------------------------------------------------------------------------------------ 14 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=26 ------------------------------------------------------------------------------------------------------------------------------------ 20 BPM16274 FOC/96 IMAGE 256X256 F278M,F4N 1 212S D ------------------------------------------------------------------------------------------------------------------------------------ 21 BPM16274 FOC/96 IMAGE 256X256 F486N 2 900S ------------------------------------------------------------------------------------------------------------------------------------ 31 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=25 ------------------------------------------------------------------------------------------------------------------------------------ 32 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=21 ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 10] Visit: 07 Visit Requirements: AFTER 3 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 NONE COSTAR DOB 1 15M REQ UPLINK; RT ANALYSIS Comments: COSTAR DOB move ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 11] Visit: 08 Visit Requirements: AFTER 7 BY 1D TO 3D 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 HZ4 FOC/96 ACQ 512X102 F278M,F4N PIXEL=50X25 1 10M INT ACQ for 11 4 D ------------------------------------------------------------------------------------------------------------------------------------ 11 HZ4 FOC/96 IMAGE 256X256 F278M,F4N 1 213S D ------------------------------------------------------------------------------------------------------------------------------------ 12 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=20 ------------------------------------------------------------------------------------------------------------------------------------ 14 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=24 ------------------------------------------------------------------------------------------------------------------------------------ 20 HZ4 FOC/96 IMAGE 256X256 F278M,F4N 1 212S D ------------------------------------------------------------------------------------------------------------------------------------ 21 HZ4 FOC/96 IMAGE 256X256 F486N 2 900S ------------------------------------------------------------------------------------------------------------------------------------ 31 INTFLAT FOC/96 RESEAU 256X256 CLEAR LED=BLUE,LED- 1 750S STEP=23 ------------------------------------------------------------------------------------------------------------------------------------ 32 INTFLAT FOC/96 RESEAU 512X102 CLEAR PIXEL=50X25,LED 1 750S 4 =GREEN-2,LED- STEP=19 ------------------------------------------------------------------------------------------------------------------------------------ 6162( 8) - 01/29/96 12:26 - [ 12] Summary Form for Proposal 6162 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations COSTAR FOC/96 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes DOB ACQ IMAGE RESEAU ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PIXEL=50X25 LED-STEP=26 LED-STEP=30 LED-STEP=29 LED-STEP=25 LED-STEP=24 LED-STEP=28 LED-STEP=27 LED-STEP=23 LED-STEP=22 LED=BLUE LED-STEP=21 LED-STEP=20 LED-STEP=19 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category CAL/FOC ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements REQ UPLINK; RT ANALYSIS INT ACQ for 11 BETWEEN 19-NOV-1995 AND 1-DEC-1995 AFTER 3 BY 1D TO 3D AFTER 3 BY 57D TO 80D AFTER 5 BY 1D TO 3D AFTER 3 AFTER 7 BY 1D TO 3D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F278M,F4ND CLEAR F486N ------------------------------------------------------------------------------------------------------------------------------------ Target Names NONE BPM16274 INTFLAT HZ4 ------------------------------------------------------------------------------------------------------------------------------------