Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 3490c Report Date: 09-May-96:18:39 Version: ********** Check-in Date: ********** 1.Proposal Title: FOC OBSERVATIONS DURING ASTIGMATISM SWEEP ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID ENG/OTA Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone R. Jedrzejewski STSCI USA ------------------------------------------------------------------------------------ 7. Abstract This proposal will perform observations through the F486N filter in F/96 mode at four settings of the OTA secondary mirror. The settings are designed to measure the astigmatism by decentering and tilting the secondary mirror in such a way as to keep the coma zero. The settings will be chosen to give measurable astigmatism so as to indicate where the zero astigmatism position is, which is the fully-aligned configuration. The sequence should be performed at each OTA setting. The exposure with F486N filter and no ND's is to expose the pads satisfactorily. The core of the PSF will be saturated. The exposure with ND's is to allow an independent phase retrieval measurement. After the initial acquisition and realtime uplink to move the star to the center of the field, each sequence should take 1 orbit. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 4.50 par: 0 10. Num targs pri: 2 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOC ------------------------------------------------------------------------------------ 12. Special sched req: Real Time obs. ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 3490c PI: R. Jedrzejewski Proposal Title: FOC OBSERVATIONS DURING ASTIGMATISM SWEEP ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Dr. R. I. Jedrzejewski STSCI USA X Prof. Daniel J. Schroeder BELOIT COLLEGE USA Dr. Chris J. Burrows STSCI USA X Prof. Ed. J. Groth PRINCETON UNIVERSITY USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. This proposal will perform observations through the F486N filter in F/96 mode at four settings of the OTA secondary mirror. The settings are designed to measure the astigmatism by decentering and tilting the secondary mirror in such a way as to keep the coma zero. The settings will be chosen to give measurable astigmatism so as to indicate where the zero astigmatism position is, which is the fully-aligned configuration. The sequence should be performed at each OTA setting. The exposure with F486N filter and no ND's is to expose the pads satisfactorily. The core of the PSF will be saturated. The exposure with ND's is to allow an independent phase retrieval measurement. After the initial acquisition and realtime uplink to move the star to the center of the field, each sequence should take 1 orbit. ------------------------------------------------------------------------------------ 11. Address Information Name: ROBERT I. JEDRZEJEWSKI Category: PI Institution: STSCI Address: 3700 SAN MARTIN DR City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: (301) 338-8524 Telex (or e-mail): ------------------------------------------------------------------------------------ Name: DANIEL J. SCHROEDER Category: CON Institution: BELOIT COLLEGE Address: PHYSICS DEPARTMENT City: BELOIT State: WI Zip Code: 53511 Country: USA Telephone: (608) 365 3391 Telex (or e-mail): ------------------------------------------------------------------------------------ Name: CHRISTOPHER J. BURROWS Category: CON Institution: STSCI Address: 3700 SAN MARTIN DR City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: (301) 338 4913 Telex (or e-mail): ------------------------------------------------------------------------------------ Page 3 Name: ED J. GROTH Category: CON Institution: PRINCETON UNIVERSITY Address: PHYSICS DEPARTMENT JADWIN HALL City: PRINCETON State: NJ Zip Code: 08544 Country: USA Telephone: (609) 258 4361 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 3490c [ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 3 AGK81D266 SPECTROPHOTOMETRIC RA=9H 21M 19.06S +/- 1", 2000 1 V=11.92 STANDARD DEC=+81D 43' 28.6" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3490c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 0.5 DEFINE DARK S/C DATA NONE 1 20M 1 REQ UPLINK ASTIG Comments: THIS IS TO SET THE SECONDARY MIRROR FOR THE SEQUENCE ------------------------------------------------------------------------------------------------------------------------------------ 1 DEFINE AGK81D266 FOC/96 IMAGE 512X512 F486N 1 15M 100 1 1 GUID TOL 0.007" ASTIG Comments: OVEREXPOSED TO SHOW PADS ------------------------------------------------------------------------------------------------------------------------------------ 1.5 DEFINE DARK S/C DATA NONE FORMAT=FN 1 1S 1 PAR WITH 1 ASTIG Comments: TO ENSURE 32KBPS TELEMETRY ------------------------------------------------------------------------------------------------------------------------------------ 2 DEFINE AGK81D266 FOC/96 IMAGE 512X512 F486N, 1 15M 100 1 1 GUID TOL 0.007" ASTIG F2ND Comments: TO ALLOW MEASUREMENT OF ASTIG USING PHASE RETRIEVAL ------------------------------------------------------------------------------------------------------------------------------------ 2.5 DEFINE DARK S/C DATA NONE FORMAT=FN 1 1S 1 PAR WITH 2 ASTIG Comments: TO ENSURE 32KBPS TELEMETRY ------------------------------------------------------------------------------------------------------------------------------------ 100 AGK81D266 FOC/96 ACQ 512X102 F486N PIXEL=50X25 1 10M 100 1 1 INT ACQ FOR 101- 4 104 CRIT OBS CYCLE 0 / 100- 104.5 SEQ 100-104.5 NO Comments: ACQUISITION IMAGE GAP ------------------------------------------------------------------------------------------------------------------------------------ 101 USE ASTIG ------------------------------------------------------------------------------------------------------------------------------------ 102 USE ASTIG ------------------------------------------------------------------------------------------------------------------------------------ 103 USE ASTIG ------------------------------------------------------------------------------------------------------------------------------------ 104 USE ASTIG ------------------------------------------------------------------------------------------------------------------------------------ 104.5 DARK S/C DATA NONE 1 20M 1 REQ UPLINK Comments: THIS IS TO SET THE SECONDARY MIRROR BACK TO THE DEFAULT POSITION ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 3490c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations S/C FOC/96 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes DATA IMAGE ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FORMAT=FN PIXEL=50X25 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for ENG/OTA ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 4.50 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements REQ UPLINK; GUID TOL 0.007"; PAR WITH 1; PAR WITH 2; INT ACQ FOR 101-104; CRIT OBS; CYCLE 0 / 100-104.5; SEQ 100-104.5 NO GAP; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F486N F486N,F2ND ------------------------------------------------------------------------------------------------------------------------------------ Target Names AGK81D266 ------------------------------------------------------------------------------------------------------------------------------------