Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 2843c Report Date: 09-May-96:17:27 Version: ********** Check-in Date: ********** 1.Proposal Title: HRS INTERMEDIATE/LOW RESOLUTION CROSS-CALIBRATION ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CALIBRATION CAL/HRS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Ronald L. Gilliland ST SCI USA 301-338-4454 GHRS INST SCI ------------------------------------------------------------------------------------ 7. Abstract This proposal defines tests to cross calibrate the HRS low and intermediate resolution modes. Intermediate/low resolution standards will be observed with the G140L, G140M, G160M, G200M, and G270M grating. One of the two primary objects is an FOS calibration star; This is the only proposal that will provide cross-calibration of GHRS and FOS. Primary purpose is to provide time history with two independent external sources. An independent CAL proposal with the brighter star mu Col as target will be used to monitor flux differences between LSA and SSA and at a higher density of wavelengths. ------------------------------------------------------------------------------------ 8. Scientific Key Words: HRS, CALIBRATION, CYCLE 1 ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 3.33 par: 0 10. Num targs pri: 2 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HRS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 2843c PI: Ronald L. Gilliland Proposal Title: HRS INTERMEDIATE/LOW RESOLUTION CROSS-CALIBRATION ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Douglas K. Duncan ST SCI USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Observe BD+75D325 and HD 93521 as follows: 1. Acquire target using on-board acquisition. 2. Center in LSA and make focus diode aperture map. 3. Obtain G140L spectra as follows: a. 4 carrousel settings on 200 A centers (1100, 1300, 1500, 1700A), b. 2 substeps/diode, integrations <5s/substep c. ~10 percent of integration time on background. 4. Obtain G140M spectra as follows: one carrousel setting at 1300 b. 2 substeps/diode, integrations <5s/substep c. 10 percent integration time on background. 5. Obtain G160M data spectra as follows: one carrousel setting at 1600 b. 2 substeps/diode, 5 to 20s substep integrations c. 10 percent integration time on background. G200M at 2100 10 to 20s substep integrations G270M at 2600 5 to 10s substep integrations ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. This program calibrates the HRS, which only operates with the ST. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Guiding Tolerance: 0.025 arc seconds ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data will be reduced at ST SCI. This will provide time history information on absolute sensitivity of the GHRS. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). ------------------------------------------------------------------------------------ 12. The primary targets are BD+75D325 and HD 93521. ------------------------------------------------------------------------------------ 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 K. DUNCAN Category: Institution: ST SCI Address: City: State: Zip Code: Country: USA Telephone: 301-338-4935 Telex (or e-mail): ------------------------------------------------------------------------------------ Page 3 Name: RONALD L. GILLILAND Category: PI Institution: ST SCI Address: City: State: Zip Code: Country: USA Telephone: 301-338-4454 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 2843c [ 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 HD93521 PHOTOMETRIC STANDARD RA = 10H 48M 23.51S +/- 2000 1 V=7.04, TYPE=09V GSC3009-2547 0.03S, 2 B-V=-0.28 DEC = 37D 34' 12.8" +/-0.5", PLATE-ID=01RB ------------------------------------------------------------------------------------------------------------------------------------ 2 BD+75D325 PHOTOMETRIC STANDARD RA = 8H 10M 49.31S +/- 0.5S, 2000 1 V=9.54, TYPE = SD0 GSC4380-2196 DEC = +74D 57' 57.5" +/- 2 B-V=-0.37 0.5", PLATE-ID=00LQ ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 2843c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 HD93521 HRS ACQ 2.0 MIRROR-A2 MAP=END-POINT 1 57.8S 1 ONBOARD ACQ FOR 2- FAINT=2000 6 BRIGHT=DEF GROUP 1-6 WITHIN 24 H Comments: STEP-TIME=0.2 ------------------------------------------------------------------------------------------------------------------------------------ 2 HD93521 HRS ACCUM 2.0 G160M 1600 STEP-PATT=4 1 43.2S 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD93521 HRS ACCUM 2.0 G200M 2100 STEP-PATT=4 1 57.6S 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 HD93521 HRS ACCUM 2.0 G270M 2600 STEP-PATT=4 1 28.8S 1 ------------------------------------------------------------------------------------------------------------------------------------ 5 HD93521 HRS WSCAN 2.0 G140L 1100- WAVE-STEP=200 1 57.6S 1 REPEAT 2-6 EVERY 1700 METER=YES 120D +/- 20D STEP-PATT=4 FOR 2 MORE TIMES HIGH- COUNT=90000 Comments: 4 SETTINGS ON 200A CENTERS, CENTERS= 1100,1300,1500,1700A. INTEGRATE FOR 45000 C/S OR MAX OF 6.4S PER SUBSTEP. ------------------------------------------------------------------------------------------------------------------------------------ 6 HD93521 HRS ACCUM 2.0 G140M 1300 STEP-PATT=4 1 14.4S 1 ------------------------------------------------------------------------------------------------------------------------------------ 7 BD+75D325 HRS ACQ 2.0 MIRROR-A2 MAP=END-POINT 1 57.8S 1 ONBOARD ACQ FOR 8- FAINT=600 12 BRIGHT=35000 GROUP 7-12 WITHIN 24 H Comments: STEP-TIME=0.2 ------------------------------------------------------------------------------------------------------------------------------------ 8 BD+75D325 HRS ACCUM 2.0 G160M 1600 STEP-PATT=4 1 172.8S 1 ------------------------------------------------------------------------------------------------------------------------------------ 9 BD+75D325 HRS ACCUM 2.0 G200M 2100 STEP-PATT=4 1 230.4S 1 ------------------------------------------------------------------------------------------------------------------------------------ 10 BD+75D325 HRS ACCUM 2.0 G270M 2600 STEP-PATT=4 1 115.2S 1 ------------------------------------------------------------------------------------------------------------------------------------ 11 BD+75D325 HRS WSCAN 2.0 G140L 1100- WAVE-STEP=200 1 57.6S 1 REPEAT 8-12 EVERY 1700 METER=YES 120D +/- 20D STEP-PATT=4 FOR 2 MORE TIMES HIGH- COUNT=90000 Comments: 4 SETTINGS ON 200A CENTERS, CENTERS= 1100,1300,1500,1700A. INTEGRATE FOR 45000 C/S OR MAX OF 6.4S PER SUBSTEP. ------------------------------------------------------------------------------------------------------------------------------------ 12 BD+75D325 HRS ACCUM 2.0 G140M 1300 STEP-PATT=4 1 57.6S 1 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 2843c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACCUM WSCAN ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters MAP=END-POINT FAINT=2000 BRIGHT=DEF STEP-PATT=4 WAVE-STEP METER HIGH-COUNT=90000 FAINT=600 BRIGHT=35000 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 3.33 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category CALIBRATION ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 2-6; GROUP 1-6 WITHIN 24 H; REPEAT 2-6 EVERY 120D +/- 20D FOR 2 MORE TIMES ONBOARD ACQ FOR 8-12; GROUP 7-12 WITHIN 24 H; REPEAT 8-12 EVERY 120D +/- 20D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-A2 G160M G200M G270M G140L G140M ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD93521 GSC3009-2547 BD+75D325 GSC4380-2196 ------------------------------------------------------------------------------------------------------------------------------------