Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 3404c Report Date: 09-May-96:18:35 Version: ********** Check-in Date: ********** 1.Proposal Title: WFPC FOCUS SWEEP ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID ENG ENG/OTA Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Prof Edward J Groth PRINCETON USA 609-258-4361 ------------------------------------------------------------------------------------ 7. Abstract This proposal requests the use of PC6 with filters F487N and F889N in order to do a "focus sweep" as approved by the TTSC. There will be a realtime "target acquisition exposure" in order to place the star at the correct location in PC6. Then there will 7 sets of exposures at different secondary mirror despaces in order to measure the focus of the telescope. Prior to each set of exposures, realtime contacts must be established in order to move the secondary mirror. Each set of exposures consists of 4 exposures, a short and a long exposure in F487N and F889N. It is estimated that each set can be completed in one orbit, so eight orbits are required for this proposal. All exposures are to occur in fine lock, be pre-flashed, and not be cosmic ray split. ------------------------------------------------------------------------------------ 8. Scientific Key Words: OPTICAL ALIGNMENT ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0.14 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ 12. Special sched req: Real Time obs. ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 3404c PI: Prof Edward J Groth Proposal Title: WFPC FOCUS SWEEP ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Prof Edward J Groth PRINCETON UNIVERSITY USA Prof Daniel J Schroeder BELOIT COLLEGE USA Dr Chris Burrows STSCI USA Dr Robert Jedrzejewski ESA UK X ------------------------------------------------------------------------------------ 2. Scientific Justification. This proposal requests the use of PC6 with filters F487N and F889N in order to do a "focus sweep" as approved by the TTSC. There will be a realtime "target acquisition exposure" in order to place the star at the correct location in PC6. Then there will 7 sets of exposures at different secondary mirror despaces in order to measure the focus of the telescope. Prior to each set of exposures, realtime contacts must be established in order to move the secondary mirror. Each set of exposures consists of 4 exposures, a short and a long exposure in F487N and F889N. It is estimated that each set can be completed in one orbit, so eight orbits are required for this proposal. All exposures are to occur in fine lock, be pre-flashed, and not be cosmic ray split. ------------------------------------------------------------------------------------ 11. Address Information Name: EDWARD J GROTH Category: PI 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): ------------------------------------------------------------------------------------ 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: CHRIS BURROWS Category: CON Institution: STSCI Address: 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: 301-338-4913 Telex (or e-mail): ------------------------------------------------------------------------------------ Page 3 Name: ROBERT JEDRZEJEWSKI Category: CON Institution: ESA Address: STSCI 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: 301-338-8524 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 3404c [ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 SAO7867 STAR RA = 13H 40M 40.99S +/- 2000.0 0.1S, DEC=+76D 50' 37.5" +/- 1.0" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3404c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 DEFINE DARK S/C DATA NONE 1 20M 1 REQ UPLINK SWEEP SEQ 10,12,16,20,24 NO GAP CYCLE 1 / 10-26 Comments: THIS LINE ALLOWS TIME TO MOVE THE SECONDARY MIRROR ------------------------------------------------------------------------------------------------------------------------------------ 12 DEFINE SAO7867 PC IMAGE P6 F487N PRE-FLASH=YES 1 2.6S 1 GUID TOL 0.007" SWEEP CR-SPLIT=NO PURGE=NO Comments: THIS LINE GETS AN EXPOSURE ------------------------------------------------------------------------------------------------------------------------------------ 14 DEFINE DARK S/C DATA NONE FORMAT=FN 1 1S 1 PAR WITH 12 SWEEP Comments: THIS LINE IS TO GET A 32KBPS DOWNLINK FOR JITTER DATA ------------------------------------------------------------------------------------------------------------------------------------ 16 DEFINE SAO7867 PC IMAGE P6 F487N PRE-FLASH=YES 1 26S 1 GUID TOL 0.007" SWEEP CR-SPLIT=NO PURGE=NO Comments: THIS LINE GETS AN EXPOSURE ------------------------------------------------------------------------------------------------------------------------------------ 18 DEFINE DARK S/C DATA NONE FORMAT=FN 1 1S 1 PAR WITH 16 SWEEP Comments: THIS LINE IS TO GET A 32KBPS DOWNLINK FOR JITTER DATA ------------------------------------------------------------------------------------------------------------------------------------ 20 DEFINE SAO7867 PC IMAGE P6 F889N PRE-FLASH=YES 1 4S 1 GUID TOL 0.007" SWEEP CR-SPLIT=NO PURGE=NO Comments: THIS LINE GETS AN EXPOSURE ------------------------------------------------------------------------------------------------------------------------------------ 22 DEFINE DARK S/C DATA NONE FORMAT=FN 1 1S 1 PAR WITH 20 SWEEP Comments: THIS LINE IS TO GET A 32KBPS DOWNLINK FOR JITTER DATA ------------------------------------------------------------------------------------------------------------------------------------ 24 DEFINE SAO7867 PC IMAGE P6 F889N PRE-FLASH=YES 1 40S 1 GUID TOL 0.007" SWEEP CR-SPLIT=NO PURGE=NO Comments: THIS LINE GETS AN EXPOSURE ------------------------------------------------------------------------------------------------------------------------------------ 26 DEFINE DARK S/C DATA NONE FORMAT=FN 1 1S 1 PAR WITH 24 SWEEP Comments: THIS LINE IS TO GET A 32KBPS DOWNLINK FOR JITTER DATA ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3404c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 100 SAO7867 PC IMAGE P6 F487N PRE-FLASH=YES 1 3S 1 INT ACQ FOR 200- CR-SPLIT=NO 300 PURGE=NO POS TARG -12.3,9.5 GUID TOL 0.007" RT ANALYSIS CYCLE 1 Comments: THIS EXPOSURE IS USED TO CENTER THE STAR AT PIXEL COORDINATES (245,310) IN PC6 WHICH IS ITS OPTICAL AXIS ------------------------------------------------------------------------------------------------------------------------------------ 200 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE FIRST DESPACE POSITION ------------------------------------------------------------------------------------------------------------------------------------ 202 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE SECOND DESPACE POSITION. ------------------------------------------------------------------------------------------------------------------------------------ 204 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE THIRD DESPACE POSITION. ------------------------------------------------------------------------------------------------------------------------------------ 206 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE FOURTH DESPACE POSITION. ------------------------------------------------------------------------------------------------------------------------------------ 208 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE FIFTH DESPACE POSITION. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3404c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 210 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE SIXTH DESPACE POSITION. ------------------------------------------------------------------------------------------------------------------------------------ 212 USE SWEEP Comments: PRIOR TO THIS SEQUENCE OF EXPOSURES REAL TIME COMMANDS MUST BE USED TO MOVE THE SECONDARY MIRROR TO THE SEVENTH DESPACE POSITION. ------------------------------------------------------------------------------------------------------------------------------------ 300 DARK S/C DATA NONE 1 20M 1 REQ UPLINK CYCLE 1 Comments: THIS LINE ALLOWS TIME TO MOVE THE SECONDARY MIRROR BACK TO ITS NOMINAL POSITION ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 3404c [ 8] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations S/C PC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes DATA IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PRE-FLASH=YES CR-SPLIT=NO PURGE=NO FORMAT=FN ------------------------------------------------------------------------------------------------------------------------------------ Proposal for ENG/OTA ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 0.14 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ENG ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements REQ UPLINK; SEQ 10,12,16,20,24 NO GAP; CYCLE 1 / 10-26 GUID TOL 0.007" PAR WITH 12 PAR WITH 16 PAR WITH 20 PAR WITH 24 INT ACQ FOR 200-300; POS TARG -12.3,9.5; GUID TOL 0.007"; RT ANALYSIS; CYCLE 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F487N F889N ------------------------------------------------------------------------------------------------------------------------------------ Target Names SAO7867 ------------------------------------------------------------------------------------------------------------------------------------