Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4124c Report Date: 09-May-96:19:14 Version: ********** Check-in Date: ********** 1.Proposal Title: GHRS SENSITIVITY MONITOR- CYCLE 2 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/HRS 3385 Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dr. Ronald L. Gilliland STSCI USA 301 338 4454 ------------------------------------------------------------------------------------ 7. Abstract This proposal defines a long term sensitivity monitoring program for the Goddard High Resolution Spectrograph. It uses two UV standard stars, BD+28d4211, and Mu Columbae. BD+28d4211 will be the long term standard, and will allow cross- calibration with FOS. Mu Col will be observed with the LSA and SSA. The exposure times are short. The medium resolution gratings will measure Mu Columbae through the LSA and SSA. Observations will be made at intervals of 100A across the range of each grating. For the Echelle, OSCAN observations will measure the sensitivity near the the blaze peak. The setups for the Echelle is chosen to be the same as that used in SV, to maintain traceability to the original calibrations. WSCAN observations will scan across m=20 in ECH-B. We recommend that this test be run approximately three times per year to monitor the long term photometric stability of the GHRS. ------------------------------------------------------------------------------------ 8. Scientific Key Words: CALIBRATION ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 8.38 par: 0 10. Num targs pri: 3 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HRS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4124c PI: Dr. Ronald L. Gilliland Proposal Title: GHRS SENSITIVITY MONITOR- CYCLE 2 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Dr. Ronald Gilliland SPACE TELESCOPE SCIENCE USA INSTITUTE Dr. Dave Soderblom SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 2. Scientific Justification. The sensitivity of the GHRS is likely to change slowly with time, as the optics and detectors experience prolonged exposure to the space environment. Accurate sensitivity curves are needed for planning exposure times before an observation, and for reducing data after the fact. A simple program is needed to monitor and update the sensitivities by making observations of UV standard stars several times per year. ------------------------------------------------------------------------------------ 3. Description of proposed observations. PART 1: lines 160-195 G160M,G200M,G270M BD+28D4211 Onboard acq with A2, LSA peakup, LSA image med res spectra at 1200, 1500, 2000, 2500, 3000 LSA PART 2: lines 400-580 side 2 gratings Mu Col Grating G160M Mu Columbae Onboard acq with A2, LSA peakup, LSA image spectra at 1100,1150,1200, 1300, 1400 .... 2300 - star in LSA Grating G200M Mu Columbae spectra at 1800, 1900, 2000 .... 2300 - star in LSA Grating G270M Mu Columbae spectra at 2300, 2400, 2500 .... 3300 - star in LSA A2 LSA peakup, image, move to SSA, ssa image SSA spectra, G160M, G200M, G270M 1200, 1500, 2000, 2500, 3000 PART 3: lines 600-645 Echelle_B Mu Columbae A2, LSA peakup, LSA image OSCAN at m-lam = 56200 m=18 - 27 blaze peak OSCAN at m-lam = 56200 m=27 - 33 blaze peak WSCAN across m=20 ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Exposure times are based on observed count rates. The goal is to obtain between 1000 - 10000 cts/diode in each substep bin. High S/N is required to identify small changes in sensitivity. Bright stars are used to keep the total test time as short as possible. The same star is used for all gratings to allow easy intercomparison and cross calibration. Separate acquisitions for groups of related exposures should allow each to be an independent scheduling unit. This should provide maximum reasonable scheduling flexibility. Total test time is derived from the resource estimator. The test should be structured as three scheduling units: PART 1: lines 160-195 (Side 2) BD+28d4211 PART 2: lines 400-580 (Side 2) Mu Col PART 3: lines 600-645 (Side 2) Mu Col ------------------------------------------------------------------------------------ 11. Address Information Name: RONALD GILLILAND Category: PI Institution: SPACE TELESCOPE SCIENCE INSTITIUE Address: 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ Page 3 Name: DAVE SODERBLOM Category: CON Institution: SPACE TELESCOPE SCIENCE INSTITIUE Address: 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4124c [ 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 BD75D325 J,702 RA = 08H 10M 49.31S +/- 2000 1 V=9.54 GSC4380-2196 0.1S, 2 B-V=-0.37 DEC = +74D 57' 57.5" +/- 0.5", PLATE-ID=00LQ ------------------------------------------------------------------------------------------------------------------------------------ 2 BD28D4211 J,702 RA = 21H 51M 11.07S +/- 2000 1 V=10.53 GSC2214-1198 0.1S, 2 B-V=-0.34 DEC = +28D 51' 51.8" +/- 0.5", PLATE-ID=01LR ------------------------------------------------------------------------------------------------------------------------------------ 3 MU-COL J,702 RA = 05H 45M 59.92S +/- 2000 1 V=5.17 0.1S, 2 B-V=-0.28 DEC = -32D 18' 22.8" +/- 0.5", PLATE-ID=01WB ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4124c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 160 BD28D4211 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=3 1 9.0S 10 1 1 ONBOARD ACQ FOR FAINT=500 165 SEQ 170-195 NO GAP CYCLE 2/160-195 ------------------------------------------------------------------------------------------------------------------------------------ 165 BD28D4211 HRS ACQ/ 2.0 MIRROR-A2 1 204S 10 1 1 ONBOARD ACQ FOR PEAKUP 170-195 ------------------------------------------------------------------------------------------------------------------------------------ 170 BD28D4211 HRS IMAGE 2.0 MIRROR-A2 NX=32 1 512.0S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 172 BD28D4211 HRS IMAGE 2.0 MIRROR-N2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 175 BD28D4211 HRS ACCUM 2.0 G160M 1200 STEP-PATT=4 1 144.0S 40 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 180 BD28D4211 HRS ACCUM 2.0 G160M 1500 STEP-PATT=4 1 216.0S 40 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 185 BD28D4211 HRS ACCUM 2.0 G200M 2000 STEP-PATT=4 1 288.0S 40 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 190 BD28D4211 HRS ACCUM 2.0 G270M 2500 STEP-PATT=4 1 144.0S 40 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 195 BD28D4211 HRS ACCUM 2.0 G270M 3000 STEP-PATT=4 1 432.0S 40 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 400 MU-COL HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=3 1 1.8S 10 1 1 ONBOARD ACQ FOR FAINT=8000 405 SEQ 410-580 NO GAP CYCLE 2/400-580 ------------------------------------------------------------------------------------------------------------------------------------ 405 MU-COL HRS ACQ/ 2.0 MIRROR-A2 1 20.4S 10 1 1 ONBOARD ACQ FOR PEAKUP 410-545 ------------------------------------------------------------------------------------------------------------------------------------ 410 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 412 MU-COL HRS ACCUM 2.0 G160M 1100 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 414 MU-COL HRS ACCUM 2.0 G160M 1150 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 415 MU-COL HRS ACCUM 2.0 G160M 1200 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 420 MU-COL HRS ACCUM 2.0 G160M 1300 STEP-PATT=4 1 14.4S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 425 MU-COL HRS ACCUM 2.0 G160M 1400 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 430 MU-COL HRS ACCUM 2.0 G160M 1500 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4124c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 435 MU-COL HRS ACCUM 2.0 G160M 1600 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 440 MU-COL HRS ACCUM 2.0 G160M 1700 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 445 MU-COL HRS ACCUM 2.0 G160M 1800 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 450 MU-COL HRS ACCUM 2.0 G160M 1900 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 455 MU-COL HRS ACCUM 2.0 G160M 2000 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 456 MU-COL HRS ACCUM 2.0 G160M 2100 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 457 MU-COL HRS ACCUM 2.0 G160M 2200 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 458 MU-COL HRS ACCUM 2.0 G160M 2300 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 460 MU-COL HRS ACCUM 2.0 G200M 1800 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 465 MU-COL HRS ACCUM 2.0 G200M 1900 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 470 MU-COL HRS ACCUM 2.0 G200M 2000 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 475 MU-COL HRS ACCUM 2.0 G200M 2100 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 480 MU-COL HRS ACCUM 2.0 G200M 2200 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 485 MU-COL HRS ACCUM 2.0 G200M 2300 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 490 MU-COL HRS ACCUM 2.0 G270M 2300 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 495 MU-COL HRS ACCUM 2.0 G270M 2400 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 500 MU-COL HRS ACCUM 2.0 G270M 2500 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 505 MU-COL HRS ACCUM 2.0 G270M 2600 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 510 MU-COL HRS ACCUM 2.0 G270M 2700 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 515 MU-COL HRS ACCUM 2.0 G270M 2800 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 520 MU-COL HRS ACCUM 2.0 G270M 2900 STEP-PATT=4 1 28.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 525 MU-COL HRS ACCUM 2.0 G270M 3000 STEP-PATT=4 1 43.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 530 MU-COL HRS ACCUM 2.0 G270M 3100 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 535 MU-COL HRS ACCUM 2.0 G270M 3200 STEP-PATT=4 1 230.4S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 540 MU-COL HRS ACCUM 2.0 G270M 3300 STEP-PATT=4 1 230.4S 50 1 1 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4124c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 541 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 545 MU-COL HRS ACQ/ 2.0 MIRROR-A2 1 9.2S 10 1 1 ONBOARD ACQ FOR PEAKUP 550-580 ------------------------------------------------------------------------------------------------------------------------------------ 550 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 560 MU-COL HRS ACCUM 0.25 G160M 1200 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 565 MU-COL HRS ACCUM 0.25 G160M 1500 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 570 MU-COL HRS ACCUM 0.25 G200M 2000 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 575 MU-COL HRS ACCUM 0.25 G270M 2500 STEP-PATT=4 1 115.2S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 580 MU-COL HRS ACCUM 0.25 G270M 3000 STEP-PATT=4 1 172.8S 80 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 600 MU-COL HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=3 1 1.8S 10 1 1 ONBOARD ACQ FOR FAINT=8000 605 SEQ 610-645 NO GAP CYCLE 2/600-645 ------------------------------------------------------------------------------------------------------------------------------------ 605 MU-COL HRS ACQ/ 2.0 MIRROR-A2 1 9.2S 10 1 1 ONBOARD ACQ FOR PEAKUP 610-630 ------------------------------------------------------------------------------------------------------------------------------------ 610 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 615 MU-COL HRS OSCAN 2.0 ECH-B 3122.22 STEP-PATT=6 1 576.0S 80 1 1 2 OSCAN-MIN=18 OSCAN-MAX=27 ------------------------------------------------------------------------------------------------------------------------------------ 620 MU-COL HRS OSCAN 2.0 ECH-B 2081.48 STEP-PATT=6 1 806.4S 80 1 1 2 OSCAN-MIN=27 OSCAN-MAX=33 ------------------------------------------------------------------------------------------------------------------------------------ 625 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 630 MU-COL HRS ACQ/ 2.0 MIRROR-A2 1 9.2S 10 1 1 ONBOARD ACQ FOR PEAKUP 635-645 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4124c [ 8] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 635 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ 640 MU-COL HRS WSCAN 2.0 ECH-B20 2725- STEP-PATT=6 1 489.6S 80 1 1 2895 WAVE-STEP=10 ------------------------------------------------------------------------------------------------------------------------------------ 645 MU-COL HRS IMAGE 2.0 MIRROR-A2 NX=32 1 102.4S 10 1 1 NY=16 DELTA-X=2 DELTA-Y=4 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4124c [ 9] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAKUP IMAGE ACCUM OSCAN WSCAN ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE=3 FAINT=500 NX=32 NY=16 DELTA-X=2 DELTA-Y=4 STEP-PATT=4 FAINT=8000 STEP-PATT=6 OSCAN-MIN=18 OSCAN-MAX=27 OSCAN-MIN=27 OSCAN-MAX=33 WAVE-STEP=10 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 8.38 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 165; SEQ 170-195 NO GAP;CYCLE 2/160-195; ONBOARD ACQ FOR 170-195; ONBOARD ACQ FOR 405; SEQ 410-580 NO GAP; CYCLE 2/400-580; ONBOARD ACQ FOR 410-545; ONBOARD ACQ FOR 550-580; ONBOARD ACQ FOR 605; SEQ 610-645 NO GAP; CYCLE 2/600-645; ONBOARD ACQ FOR 610-630; ONBOARD ACQ FOR 635-645; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-A2 MIRROR-N2 G160M G200M G270M ECH-B ECH-B20 ------------------------------------------------------------------------------------------------------------------------------------ Target Names BD75D325 GSC4380-2196 BD28D4211 GSC2214-1198 MU-COL ------------------------------------------------------------------------------------------------------------------------------------