Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 2841c Report Date: 09-May-96:17:27 Version: ********** Check-in Date: ********** 1.Proposal Title: DARK NOISE MONITORING HRS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/HRS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Ronald L. Gilliland ST SCI USA 301-338-4454 GHRS INST SCI ------------------------------------------------------------------------------------ 7. Abstract CYCLE 1 test for routine monitoring of detector dark noise. This proposal will provide the primary means of checking on health of the GHRS detector systems through frequent monitoring of the background count rate. ------------------------------------------------------------------------------------ 8. Scientific Key Words: HRS, CALIBRATION, CYCLE 1 ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 7.47 10. Num targs pri: 0 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HRS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 2841c PI: Ronald L. Gilliland Proposal Title: DARK NOISE MONITORING HRS ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Ronald L. Gilliland ST SCI USA Douglas K. Duncan ST SCI USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Engineering mode "Photoscan" can be used. An integration time of 10 seconds with 7 bins produces a readout every 70 seconds. 16 of these observations provides 18.7 minutes of dark count data. All deflection are 2048, 2048. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Estimated observing time = 24 exposures x 18.67 minutes = 448 minutes = 7.47 hours. Guiding Tolerance: none - internal test only These are internal tests and do not require any special pointing of the telescope. They do not demand that HRS be prime instrument. It is hoped that HRS can be operated in a parallel mode, allowing these dark count monitors to be run very frequently. There is no carrousel motion. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Basically the same as for test HRS-i5, but with long term trend analysis and improvement of statistical accuracy as the main goals. ------------------------------------------------------------------------------------ 11. Address Information Name: RONALD L GILLILAND Category: PI Institution: ST SCI Address: 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ Name: DOUGLAS DUNCAN Category: Institution: ST SCI Address: City: State: Zip Code: Country: Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 2841c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 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 DEFINE DARK HRS PHOTOSC NONE SAFE1 TYPE=SHORT-Y 16 70S 1 CYCLE 1/1-10 D1DARK AN SPACING=0 X=2048 Y=2048 Comments: STEP-TIME=10S. ------------------------------------------------------------------------------------------------------------------------------------ 2 DEFINE DARK HRS PHOTOSC NONE SAFE2 TYPE=SHORT-Y 16 70S 1 D2DARK AN SPACING=0 X=2048 Y= 2048 Comments: STEP-TIME=10S ------------------------------------------------------------------------------------------------------------------------------------ 4 USE REPEAT 4 EVERY 60D D1DARK +/- 7D FOR 5 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ 6 USE REPEAT 6 EVERY 60D D2DARK +/- 7D FOR 5 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ 8 USE REPEAT 8 EVERY 60D D1DARK +/- 7D FOR 5 MORE TIMES Comments: TAKE DARK COUNTS IN THE SAA. ------------------------------------------------------------------------------------------------------------------------------------ 10 USE REPEAT 10 EVERY D2DARK 60D +/- 7D FOR 5 MORE TIMES Comments: TAKE DARK COUNTS IN THE SAA. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 2841c [ 4] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes PHOTOSCAN ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters TYPE=SHORT-Y SPACING=0 X=2048 Y=2048 TYPE=SHORT-Y SPACING=0 X=2048 Y= ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 1/1-10; REPEAT 4 EVERY 60D +/- 7D FOR 5 MORE TIMES; REPEAT 6 EVERY 60D +/- 7D REPEAT 8 EVERY 60D +/- 7D REPEAT 10 EVERY 60D +/- 7D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements SAFE1 SAFE2 ------------------------------------------------------------------------------------------------------------------------------------ Target Names ------------------------------------------------------------------------------------------------------------------------------------