Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4211c Report Date: 09-May-96:19:26 Version: ********** Check-in Date: ********** 1.Proposal Title: FOS APERTURE THROUGHPUT AND BLUE-TO-RED-SIDE OFFSET ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/FOS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Ralph Bohlin STSCI USA 410-338-4804 ------------------------------------------------------------------------------------ 7. Abstract Part I is a check of the small aperture transmissions that were determined in cycle 1 for the PRISM, G190H, and G160L in the 0.3, 0.5, 1.0, 2.5x2.0 (slit), and 4.3 arcsec apertures. A four stage peakup of the standard star should provide excellent centering in the small apertures. This program is the first check on the these small aperture transmissions relative to the 4.3 aperture since the execution of the SV proposal (3106) that determined the ratios. If the transmissions do not repeat to few percent, then a regular monitoring of the small apertures is required to determine the statistical uncertainty in the photometric repeatablity of small aperture FOS spectra. Part 2 is a measurement of the offset of the blue side apertures with respect to the red side. Since the peakup on the first side provides a precisely centered target, the switch to the second side followed by the peakup in the 0.3 aperture determines an accurate measure of the separation of the blue and red side apertures in the focal plane with no extra expenditure of observing time. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 0 10. Num targs pri: 3 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4211c PI: Ralph Bohlin Proposal Title: FOS APERTURE THROUGHPUT AND BLUE-TO-RED-SIDE OFFSET ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ C.I. James Neill SPACE TELESCOPE SCIENCE USA INSTITUTE P.I. Ralph Bohlin SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 3. Description of proposed observations. In this test, we will obtain spectra of one star which is a spectrophotometric standard. The star will be observed with the PRISM, G190H, and G160L dispersers through the 0.3", 0.5", 1.0", 4.3" and 0.25"x2.0" apertures to calibrate them. To assure registration of the spectrum on the diode array, the stars will be observed at 3 y-bases with a ~20 micron separation. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Pointing stability of 10% of the smallest aperture used (0.3") - 0.03" - is required. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. This test is stray light sensitive. ------------------------------------------------------------------------------------ 11. Address Information Name: RALPH BOHLIN Category: PI Institution: STSCI Address: HOMEWOOD CAMPUS City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: 410-338-4804 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4211c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 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 BD+28D4211 J,702 RA = 21H 51M 11.1S +/- 2000 1 V = 10.53 +/- 0.05 GSC 2214- 0.01S, 2 B = 10.19 +/- 0.05 1198 DEC = +28D 51' 51.8" +/- 0.2" Comments: THE GSC NAME IS GIVEN. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4211c [ 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 DEFINE # # ACQ/ 4.3 # 1 1S 1 SPATIAL SCAN PTARG PEAK SEQ 1-3 NO GAP ------------------------------------------------------------------------------------------------------------------------------------ 2 DEFINE # # ACQ/ 1.0 # 1 0.25S 1 1 SPATIAL SCAN PTARG PEAK ------------------------------------------------------------------------------------------------------------------------------------ 3 DEFINE # # ACQ/ 0.3 # SEARCH-SIZE=5 1 0.45S 1 1 PTARG PEAK SCAN-STEP=0.2 Comments: PEAK-UP SEQUENCE; ------------------------------------------------------------------------------------------------------------------------------------ 4 DEFINE # # ACQ/ 0.3 # SEARCH-SIZE=5 1 2.25S 1 1 PTWEAK PEAK SCAN-STEP=0.05 Comments: TWEAK UP TARGET IN 0.3 APERTURE ; ------------------------------------------------------------------------------------------------------------------------------------ 5 DEFINE # # ACQ/ 0.25X2. # 1 2.25S 1 1 SPATIAL SCAN SLITWEA PEAK 0 K Comments: TWEAK UP TARGET IN 0.25X2.0 APERTURE; ------------------------------------------------------------------------------------------------------------------------------------ 10 DEFINE # FOS/RD IMAGE # G190H SUB-STEP=4 1 147S 75 1 1 SEQ 10-12 NO GAP BD28-R Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 11 DEFINE # FOS/RD IMAGE # G160L SUB-STEP=4 1 28S 75 1 1 BD28-R Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 12 DEFINE # FOS/RD IMAGE # PRISM SUB-STEP=4 1 5S 75 1 1 BD28-R Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 20 DEFINE # FOS/RD IMAGE 4.3 G190H SUB-STEP=4 1 80S 75 1 1 SEQ 20-22 NO GAP BD28-R- Y-SIZE=3 43 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 21 DEFINE # FOS/RD IMAGE 4.3 G160L SUB-STEP=4 1 15S 75 1 1 BD28-R- Y-SIZE=3 43 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4211c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 22 DEFINE # FOS/RD IMAGE 4.3 PRISM SUB-STEP=4 1 2.7S 75 1 1 BD28-R- Y-SIZE=3 43 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 30 DEFINE # FOS/BL IMAGE # G160L SUB-STEP=4 1 101S 75 1 1 SEQ 30-32 NO GAP BD28-B Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 31 DEFINE # FOS/BL IMAGE # PRISM SUB-STEP=4 1 14S 75 1 1 BD28-B Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 32 DEFINE # FOS/BL IMAGE # G190H SUB-STEP=4 1 366S 60 1 1 BD28-B Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 40 DEFINE # FOS/BL IMAGE 4.3 G160L SUB-STEP=4 1 55S 75 1 1 SEQ 40-42 NO GAP BD28-B- Y-SIZE=3 43 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 41 DEFINE # FOS/BL IMAGE 4.3 PRISM SUB-STEP=4 1 8S 75 1 1 BD28-B- Y-SIZE=3 43 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 42 DEFINE # FOS/BL IMAGE 4.3 G190H SUB-STEP=4 1 200S 60 1 1 BD28-B- Y-SIZE=3 43 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ 200 USE BD+28D4211 FOS/BL G570H SEQ 200-204 NO GAP PTARG ONBOARD ACQ FOR 200.1 GROUP 200-220 NO GAP CYCLE 2 / 200-220 ------------------------------------------------------------------------------------------------------------------------------------ 200.1 USE BD+28D4211 FOS/BL G570H ONBOARD ACQ FOR PTWEAK 201-203.5 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4211c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 201 USE BD+28D4211 0.3 X2.0 BD28-B ------------------------------------------------------------------------------------------------------------------------------------ 202 USE BD+28D4211 0.5 X1.5 BD28-B ------------------------------------------------------------------------------------------------------------------------------------ 203 USE BD+28D4211 1.0 BD28-B ------------------------------------------------------------------------------------------------------------------------------------ 203.1 USE BD+28D4211 BD28-B- 43 ------------------------------------------------------------------------------------------------------------------------------------ 203.5 USE BD+28D4211 FOS/BL G570H ONBOARD ACQ FOR SLITWEA 204-216 K ------------------------------------------------------------------------------------------------------------------------------------ 204 USE BD+28D4211 0.25X2. X1.5 BD28-B 0 ------------------------------------------------------------------------------------------------------------------------------------ 216 USE BD+28D4211 FOS/RD G780H ONBOARD ACQ FOR PTWEAK 217-219.5 SEQ 216-220 NO GAP ------------------------------------------------------------------------------------------------------------------------------------ 217 USE BD+28D4211 0.3 X2.0 BD28-R ------------------------------------------------------------------------------------------------------------------------------------ 218 USE BD+28D4211 0.5 X1.5 BD28-R ------------------------------------------------------------------------------------------------------------------------------------ 219 USE BD+28D4211 1.0 BD28-R ------------------------------------------------------------------------------------------------------------------------------------ 219.1 USE BD+28D4211 BD28-R- 43 ------------------------------------------------------------------------------------------------------------------------------------ 219.5 USE BD+28D4211 FOS/RD G780H ONBOARD ACQ FOR SLITWEA 220 K ------------------------------------------------------------------------------------------------------------------------------------ 220 USE BD+28D4211 0.25X2. X1.5 BD28-R 0 ------------------------------------------------------------------------------------------------------------------------------------ Scan Paramters Form Proposal ID: 4211c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 1 Exposure Logsheet lines: 1.0 FGS Scan: DWELL Dwell Only: dwell points/line: 3 Seconds per dwell: 1.00 Scan width (arc-secs): 0.0000 Scan length (arc-secs): 2.8000 Angle between sides (degrees) 90.00 Number of lines: 1 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 0.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 1.4000 Width Offset (arc-sec): 0.0 ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 2 Exposure Logsheet lines: 2.0 FGS Scan: DWELL Dwell Only: dwell points/line: 6 Seconds per dwell: 1.00 Scan width (arc-secs): 0.7000 Scan length (arc-secs): 3.5000 Angle between sides (degrees) 90.00 Number of lines: 2 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 90.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 1.7500 Width Offset (arc-sec): 0.3500 ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 3 Exposure Logsheet lines: 5.0 FGS Scan: DWELL Dwell Only: dwell points/line: 7 Seconds per dwell: 1.00 Scan width (arc-secs): 0.0000 Scan length (arc-secs): 0.3000 Angle between sides (degrees) 90.00 Number of lines: 1 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 90.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 0.1500 Width Offset (arc-sec): 0.0 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4211c [ 8] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations # FOS/RD FOS/BL ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE=5 SCAN-STEP=0.2 SCAN-STEP=0.05 SUB-STEP=4 Y-SIZE=3 Y-SPACE=21.4 COMB=YES Y=DEF ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SPATIAL SCAN; SEQ 1-3 NO GAP; SEQ 10-12 NO GAP; SEQ 20-22 NO GAP; SEQ 30-32 NO GAP; SEQ 40-42 NO GAP; SEQ 200-204 NO GAP; ONBOARD ACQ FOR 200.1; GROUP 200-220 NO GAP; CYCLE 2 / 200-220; ONBOARD ACQ FOR 201-203.5; ONBOARD ACQ FOR 204-216; ONBOARD ACQ FOR 217-219.5; SEQ 216-220 NO GAP; ONBOARD ACQ FOR 220; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements # G190H G160L PRISM G570H G780H ------------------------------------------------------------------------------------------------------------------------------------ Target Names BD+28D4211 GSC 2214-1198 ------------------------------------------------------------------------------------------------------------------------------------