Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5040c Report Date: 09-May-96:20:19 Version: ********** Check-in Date: ********** 1.Proposal Title: GHRS DETECTOR CALIBRATIONS -- CYCLE 3 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/HRS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dr. Stephen J. Hulbert STSCI USA 301-338-4911 GHRS INSTR SCI ------------------------------------------------------------------------------------ 7. Abstract This proposal defines 2 sets of standard detector tests; a very short set will be run 4 times per year for each detector, and a longer set will be run as needed for each detector. For the shortened Cycle 3 this proposal will run twice--the last of these will be used as a close-out prior to the servicing mission. ------------------------------------------------------------------------------------ 8. Scientific Key Words: HRS, CALIBRATION, DETECTORS, CYCLE 3 ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 8.14 10. Num targs pri: 0 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HRS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5040c PI: Dr. Stephen J. Hulbert Proposal Title: GHRS DETECTOR CALIBRATIONS -- CYCLE 3 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Dr. Stephen J. Hulbert STSCI USA ------------------------------------------------------------------------------------ 2. Scientific Justification. The GHRS digicons require several internal calibrations to be performed periodically.This proposal is defined so that an abbreviated test can check the detectors quaterly, and the full test be performed as needed. This gives us confidence in the stability of the detectors, but will not require an unreasonably large amount of time. ------------------------------------------------------------------------------------ 3. Description of proposed observations. The short test to be run includes: 1) 70 second dark count measurement 2) focus check at nominal HV and tweak 3) 28 sec flat field lamp obs at center coords. 4) sample mapping function at center Y def. 5) line mapping function at center X def. For D2 43 lines of data, 16.92 min. exp. time X11 executions = 186.12 minutes The longer test to be run as needed includes: 1) complete PMAP 2) complete sample mapping function (MSKSCN) 3) complete line mapping function (TOPBOTSCN) Each execution produces 127 lines of data per detector D2 exposure time 44.45 min. per execution X4 executions = 177.80 minutes total ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. These same calibrations were run several times during ground based testing in Boulder, and were repeated during A&V, OV, SV, Cycle 1, and Cycle 2. Periodic repeats of this proposal are necessary to ensure the stability of the detectors. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Exposure times were specified based on measured count rates with the internal flat field lamps, and the requirement to obtain approximately 10000 counts per diode. There are no external targets, and no special pointing requirements. All of these observations should be scheduled as interleavers. Both the short and long test contain several exposures. None of the individual exposures exceeds 12 minutes. I have asked that for each test its individual components be grouped within 12 hours. This is not a hard limit, and could be stretched to 16 or 24 hours if absolutely necessary. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. This prop contains 2 sequences for scheduling: S1: Lines 200 - 204 D2 short test S2: Lines 400 - 403 D2 long test ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Standard reductions and output products will be produced. ------------------------------------------------------------------------------------ 8. Additional comments or special requests. For lines 200 - 204 I have requested "group within 12 hours". The goal is simply to obtain all of the calibrations while the thermal and electro- optical properties are constant. ------------------------------------------------------------------------------------ 11. Address Information Page 3 Name: STEPHEN J. HULBERT Category: PI Institution: STSCI Address: City: State: Zip Code: Country: Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5040c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 DEF DARK HRS PHOTOSC NONE # TYPE=SHORT-X 1 70S 1 CYCLE 3/ 1-403 DARKCNT AN X=2048 Y=2048 SPACING=16 Comments: USE GHRS DEFAULT OST ZDARKPAT CHECK THAT EACH BIN OF DATA CONTAINS TEN CONSECUTIVE( SECONDS OF DARK DATA ------------------------------------------------------------------------------------------------------------------------------------ 2 DEF INTFLAT HRS PHOTOSC NONE # TYPE=LONG-X 1 231.0S 60 1 FOCUS AN X=1737 Y=2048 SPACING=1 Comments: USE GHRS DEFAULT OST ZLONGSCNX INITIAL X=1622,Y=2048,DELTAX=1 ------------------------------------------------------------------------------------------------------------------------------------ 3 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-Y 1 28.0S 100 1 FLATFLD AN X=2048 Y=2048 SPACING=16 Comments: 4 SECONDS FOR EACH BIN 7 Y DEFLECTIONS CENTERED ON 2048 ------------------------------------------------------------------------------------------------------------------------------------ 4 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-X 1 7S 60 1 SEQ 4-7 NO GAP SAMPLE AN X=1380 Y=2048 SPACING=40 Comments: INITIAL X = 1260 DELTA X = 40 FINAL X = 1500 ------------------------------------------------------------------------------------------------------------------------------------ 5 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-X 1 7S 60 1 SAMPLE AN X=1660 Y=2048 SPACING=40 Comments: INITIAL X = 1540 DELTA X = 40 FINAL X = 1780 4 AND 5 MAP LEFT EDGE AT CENTER Y ------------------------------------------------------------------------------------------------------------------------------------ 6 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-X 1 7S 60 1 SAMPLE AN X=2450 Y=2048 SPACING=40 Comments: INITIAL X = 2330 DELTA X = 40 FINAL X = 2570 ------------------------------------------------------------------------------------------------------------------------------------ 7 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-X 1 7S 60 1 SAMPLE AN X=2730 Y=2048 SPACING=40 Comments: INITIAL X = 2610 DELTA X = 40 FINAL X = 2850 6 AND 7 MAP RIGHT EDGE AT CENTER Y ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5040c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 8 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-Y 1 7S 60 1 SEQ 8-11 NO GAP LINE AN X=2048 Y=206 SPACING=32 Comments: INITIAL Y = 110 DELTA Y = 32 FINAL Y = 302 ------------------------------------------------------------------------------------------------------------------------------------ 9 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-Y 1 7S 60 1 LINE AN X=2048 Y=430 SPACING=32 Comments: INITIAL Y = 334 DELTA Y = 32 FINAL Y = 526 8 AND 9 MAP TOP EDGE AT CENTER X D1 IS NEAR 360 , D2 NEAR 240 ------------------------------------------------------------------------------------------------------------------------------------ 10 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-Y 1 7S 60 1 LINE AN X=2048 Y=3600 SPACING=32 Comments: INITIAL Y = 3504 DELTA Y = 32 FINAL Y = 3696 ------------------------------------------------------------------------------------------------------------------------------------ 11 DEF INTFLAT HRS PHOTOSC NONE # TYPE=SHORT-Y 1 7S 60 1 LINE AN X=2048 Y=3824 SPACING=32 Comments: INITIAL Y = 3728 DELTA Y = 32 FINAL Y = 3920 10 AND 11 MAP BOTTOM EDGE AT CENTER X D1 IS NEAR 3760, D2 NEAR 3700 ------------------------------------------------------------------------------------------------------------------------------------ 12 DEF INTFLAT HRS PHOTOSC NONE # TYPE=MASK 1 196S 60 1 MSKSCN AN Comments: USE GHRS DEFAULT OST ZMASKSCN 28 LINES OF DATA ------------------------------------------------------------------------------------------------------------------------------------ 13 DEF INTFLAT HRS PHOTOSC NONE # TYPE=LONG-Y 1 231S 60 1 PMAP AN X=2048 Y=2096 SPACING=16 Comments: USE GHRS DEFAULT OST ZLONGSCNY INITIAL X=2048,Y=256,DELTAY=16 33 LINES OF DATA ------------------------------------------------------------------------------------------------------------------------------------ 14 DEF INTFLAT HRS PHOTOSC NONE # # 1 231S 60 1 TOPBOTS AN CN Comments: USE GHRS DEFAULT OST ZLONGSCNY X=2048,DELTAY=1 Y SPECIFIED ON LINES 402 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5040c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 200 USE SAFE2 GROUP 200-204 DARKCNT WITHIN 12H AT 22-JUL-93 +/- 14D ------------------------------------------------------------------------------------------------------------------------------------ 201 USE SAFE2 X3 FOCUS ------------------------------------------------------------------------------------------------------------------------------------ 202 USE SAFE2 X3 FLATFLD ------------------------------------------------------------------------------------------------------------------------------------ 203 USE SAFE2 X3 SAMPLE ------------------------------------------------------------------------------------------------------------------------------------ 204 USE SAFE2 X3 LINE ------------------------------------------------------------------------------------------------------------------------------------ 300 USE SAFE2 GROUP 300-304 DARKCNT WITHIN 12H AT 1-NOV-93 +/- 14D ------------------------------------------------------------------------------------------------------------------------------------ 301 USE SAFE2 X3 FOCUS ------------------------------------------------------------------------------------------------------------------------------------ 302 USE SAFE2 X3 FLATFLD ------------------------------------------------------------------------------------------------------------------------------------ 303 USE SAFE2 X3 SAMPLE ------------------------------------------------------------------------------------------------------------------------------------ 304 USE SAFE2 X3 LINE ------------------------------------------------------------------------------------------------------------------------------------ 400 USE SAFE2 X3 GROUP 400-403 PMAP WITHIN 24H Comments: SCHEDULE ONLY IF NEEDED. ------------------------------------------------------------------------------------------------------------------------------------ 401 USE SAFE2 X3 MSKSCN Comments: SCHEDULE ONLY IF NEEDED. ------------------------------------------------------------------------------------------------------------------------------------ 402 USE SAFE2 TYPE=LONG-Y X3 TOPBOTS X=2048 CN Y=253 SPACING=1 Comments: INITIAL Y=138 IN ZLONGSCNY SCHEDULE ONLY IF NEEDED. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5040c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 403 USE SAFE2 TYPE=LONG-Y X3 TOPBOTS X=2048 CN Y=3706 SPACING=1 Comments: INITIAL Y=3591 IN ZLONGSCNY SCHEDULE ONLY IF NEEDED. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5040c [ 8] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes PHOTOSCAN ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters TYPE=SHORT-X X=2048 Y=2048 SPACING=16 TYPE=LONG-X X=1737 SPACING=1 TYPE=SHORT-Y X=1380 SPACING=40 X=1660 X=2450 X=2730 Y=206 SPACING=32 Y=430 Y=3600 Y=3824 TYPE=MASK TYPE=LONG-Y Y=2096 Y=253 Y=3706 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 3/ 1-403; SEQ 4-7 NO GAP; SEQ 8-11 NO GAP; GROUP 200-204 WITHIN 12H; AT 22-JUL-93 +/- 14D GROUP 300-304 WITHIN 12H; AT 1-NOV-93 +/- 14D GROUP 400-403 WITHIN 24H; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements # SAFE2 ------------------------------------------------------------------------------------------------------------------------------------ Target Names ------------------------------------------------------------------------------------------------------------------------------------