12678( 7) - 14-Oct-2011 15:47:44 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12678 Version: 7 Check-in Time: 14-Oct-2011 15:47:44 STScI Edit Number: 2 Title COS/FUV Characterization of Optical Effects ------------------------------------------------------------------------------------ Type Cycle CAL/COS 18 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. David J. Sahnow The Johns Hopkins University CoI: Dr. Cristina Oliveira Space Telescope Science Institute N CoI: Dr. Derck L. Massa Space Telescope Science Institute N CoI: Dr. Steven Osterman University of Colorado at Boulder N CoI: Dr. Steven V. Penton University of Colorado at Boulder N CoI: Dr. Alessandra Aloisi Space Telescope Science Institute N CoI: Dr. Charles R. Proffitt Computer Sciences Corporation N ------------------------------------------------------------------------------------ Abstract This program will obtain COS FUV spectra of external targets at a range of cross-dispersion and dispersion positions in order to evaluate the optical performance of the spectrograph at different lifetime positions. Changes to throughput, resolution, gain, rotation, etc. as a function of position will be measured and compared to raytrace models. The data obtained in this program will be used, along with that from programs 12676 and 12677, to determine which positions are suitable for future science operations. Initially (the first three visits), data will be collected at only G130M/1291, using all FP-POS positions. Followup observations may be made with the other FUV gratings once the initial results are examined. ------------------------------------------------------------------------------------ Observations Description ------------------------ STRUCTURE: This program curently consists of three two-orbit visits: 01 - G130M/1291 with (cross-dispersion, dispersion) = (0.0, 0.0), (-3.0", 0.0), (-6.0", 0.0) 02 - G130M/1291 with (cross-dispersion, dispersion) = (0.0, 0.0), (+3.0", 0.0), (+6.0, 0.0) 11 - G130M/1291 with (cross-dispersion, dispersion) = (0.0, 0.0), (-3.0", -3.0"), (-3.0, +2.0") More visits will likely be added once the initial data is evaluated. Each visit follows the same pattern: 1. Perform an acquisition. 2. Take an exposure at the nominal position at one FP-POSs. 3a. Move the aperture to a position corresponding to an offset in the cross-dispersion and/or dispersion direction using ALIGN/APER.. Aperture positions are specified with the YAPER (XAPER) optional parameter, using a 12678( 7) - 14-Oct-2011 15:47:44 - [ 2] scale of -0.0476 arcseconds per YAPER (XAPER) step. 3b. Take an exposure with X and Y POS TARGs corresponding to the XAPER and YAPER value in the previous step. The ELNOAPMAIN special instruction is required for every exposure after an ALIGN/APER. 4. Repeat steps 2, 3a and 3b for the remaining positions. TARGET COUNT RATES: Both targets have been previously observed, so the count rates and spectra are known. Previous observations of SK191 in G130M had ~2.5 c/s/resel; G160M had similar count rates. Thus, with exposure times of 300 seconds, we will obtain S/N of 40 - 50 per resel in this proposal. LAMP FLASHES: At locations where program 12677 has verified that there is no light leakage from the wavecal lamp, FLASH=YES has been used. At other locations, we have used FLASH=NO. Real Time Justification ----------------------- Calibration Justification ------------------------- Optical performance of the possible lifetime positions must be evaluated before moving to a new 'permanent' position. Additional Comments ------------------- TIMING CONSTRAINTS: Visits 01 and 02 have no constraints, and can be scheduled as soon as possible, since FLASH is set to NO for the +/-6" cross-dispersion position. If Program 12677 has completed and the lamp is found to be safe at -6", this proposal may be modified to set FLASH=YES in that case. Visit 11 has no constraints since we have set FLASH=NO for the off-nominal exposures. ------------------------------------------------------------------------------------ 12678( 7) - 14-Oct-2011 15:47:44 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SK191 EXT-STAR, B0-B2 III-I RA=01H41M42.0723S +/- 0.1", J2000 V = 11.84 DEC=-73D50'38.20" +/- 0.1" Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 1991.25 7.642883213128048E-4 -0.0029 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 CL-NGC-330-E EXT-STAR, B0-B2 III-I RA=00H56M20.7900S +/- 0.1", J2000 V = 13.33 LS-4 DEC=-72D28'33.80" +/- 0.1" Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.00106 0.0015 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 12678( 7) - 14-Oct-2011 15:47:44 - [ 4] Visit: 01 Visit Requirements: SCHED 70% On Hold Comments: Additional Comments: G130M/1291 at (cross-dispersion, dispersion) positions of (0.0", 0.0"), (-3.0", 0.0"), (-6.0", 0.0") Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK191 COS/FUV ACQ/PEA PSA G130M 1291 1 2 S KXD ------------------------------------------------------------------------------------------------------------------------------------ 2 SK191 COS/FUV ACQ/PEA PSA G130M 1291 NUM-POS=5, STEP-SIZE=1.0 1 2 S KD ------------------------------------------------------------------------------------------------------------------------------------ 3 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=1, 1 300 S POS TARG 0.0, 0.0 G FLASH=YES see below Comments: FUV Exposure at 0.0 arcsec with aperture at 0.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 4 NONE COS ALIGN/A XAPER=63, YAPER=0 1 0.0 S PER Comments: Move aperture to an alternate lifetime position. This corresponds to displacement in the cross-dispersion direction of: -3.0 arcsec (63 x -0.0476) ------------------------------------------------------------------------------------------------------------------------------------ 5 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=ALL, 1 300 S POS TARG 0.0, -3.0; SPEC G FLASH=YES see below COM INSTR ELNOAPMAIN Comments: FUV Exposures at -3.0 arcsec with aperture at -3.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 6 NONE COS ALIGN/A XAPER=0, YAPER=0 1 0.0 S PER Comments: Move aperture back to nominal position. ------------------------------------------------------------------------------------------------------------------------------------ 7 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=3, 1 300 S POS TARG 0.0, 0.0; SPEC G FLASH=YES see below COM INSTR ELNOAPMAIN Comments: FUV Exposure at 0.0 arcsec with aperture at 0.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 8 NONE COS ALIGN/A XAPER=126, YAPER=0 1 0.0 S PER Comments: Move aperture to an alternate lifetime position. This corresponds to displacement in the cross-dispersion direction of: -6.0 arcsec (126 x -0.0476) ------------------------------------------------------------------------------------------------------------------------------------ 12678( 7) - 14-Oct-2011 15:47:44 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 9 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=ALL, 1 300 S POS TARG 0.0, -6.0; SPEC G FLASH=NO, WAVECAL=NO see below COM INSTR ELNOAPMAIN Comments: FUV Exposures at -6.0 arcsec with aperture at -6.0 arcsec. FLASH currently set to NO, but this may change after the final visits of 12677 are completed. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK191 1 COS/FUV ACQ/PEA PSA G130M 1291 none none none none 1 N/A KXD SK191 2 COS/FUV ACQ/PEA PSA G130M 1291 none none none none 1 N/A KD SK191 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 347.0 S G NONE 4 COS ALIGN/A none none none none 1 N/A PER SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 1 1 347.0 S G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 2 1 347.0 S G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 3 1 347.0 S G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 4 1 347.0 S G NONE 6 COS ALIGN/A none none none none 1 N/A PER SK191 7 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 456.0 S G NONE 8 COS ALIGN/A none none none none 2 N/A PER SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 1 2 456.0 S G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 2 2 456.0 S G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 3 2 456.0 S G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 4 2 456.0 S G 12678( 7) - 14-Oct-2011 15:47:44 - [ 6] Visit: 02 Visit Requirements: SCHED 70% On Hold Comments: Additional Comments: G130M/1291 at (cross-dispersion, dispersion) positions of (0.0", 0.0"), (+3.0", 0.0"), (+6.0", 0.0") Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK191 COS/FUV ACQ/PEA PSA G130M 1291 1 2 S KXD ------------------------------------------------------------------------------------------------------------------------------------ 2 SK191 COS/FUV ACQ/PEA PSA G130M 1291 NUM-POS=5, STEP-SIZE=1.0 1 2 S KD ------------------------------------------------------------------------------------------------------------------------------------ 3 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=2, 1 300 S POS TARG 0.0, 0.0 G FLASH=YES see below Comments: FUV Exposure at 0.0 arcsec with aperture at 0.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 4 NONE COS ALIGN/A XAPER=-63, YAPER=0 1 0.0 S PER Comments: Move aperture to an alternate lifetime position. This corresponds to displacement in the cross-dispersion direction of: +3.0 arcsec (-63 x -0.0476) ------------------------------------------------------------------------------------------------------------------------------------ 5 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=ALL, 1 300 S POS TARG 0.0, 3.0; SPEC G FLASH=YES see below COM INSTR ELNOAPMAIN Comments: FUV Exposures at +3.0 arcsec with aperture at +3.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 6 NONE COS ALIGN/A XAPER=0, YAPER=0 1 0.0 S PER Comments: Move aperture back to nominal position. ------------------------------------------------------------------------------------------------------------------------------------ 7 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=4, 1 300 S POS TARG 0.0, 0.0; SPEC G FLASH=YES see below COM INSTR ELNOAPMAIN Comments: FUV Exposure at 0.0 arcsec with aperture at 0.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 8 NONE COS ALIGN/A XAPER=-126, YAPER=0 1 0.0 S PER Comments: Move aperture to an alternate lifetime position. This corresponds to displacement in the cross-dispersion direction of: +6.0 arcsec (-126 x -0.0476) ------------------------------------------------------------------------------------------------------------------------------------ 12678( 7) - 14-Oct-2011 15:47:44 - [ 7] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 9 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=ALL, 1 300 S POS TARG 0.0, 6.0; SPEC G FLASH=NO, WAVECAL=NO see below COM INSTR ELNOAPMAIN Comments: FUV Exposures at +6.0 arcsec with aperture at +6.0 arcsec. FLASH currently set to NO, but this may change after the final visits of 12677 are completed. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK191 1 COS/FUV ACQ/PEA PSA G130M 1291 none none none none 1 N/A KXD SK191 2 COS/FUV ACQ/PEA PSA G130M 1291 none none none none 1 N/A KD SK191 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 340.0 S G NONE 4 COS ALIGN/A none none none none 1 N/A PER SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 1 1 340.0 S G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 2 1 340.0 S G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 3 1 340.0 S G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 4 1 340.0 S G NONE 6 COS ALIGN/A none none none none 1 N/A PER SK191 7 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 456.0 S G NONE 8 COS ALIGN/A none none none none 2 N/A PER SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 1 2 456.0 S G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 2 2 456.0 S G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 3 2 456.0 S G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 4 2 456.0 S G 12678( 7) - 14-Oct-2011 15:47:44 - [ 8] Visit: 11 Visit Requirements: SCHED 80% On Hold Comments: Additional Comments: G130M/1291 at (cross-dispersion, dispersion) positions of (0.0", 0.0"), (-3.0", -3.0"), (-3.0", +2.0") Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SK191 COS/FUV ACQ/PEA PSA G130M 1291 1 2 S KXD ------------------------------------------------------------------------------------------------------------------------------------ 2 SK191 COS/FUV ACQ/PEA PSA G130M 1291 NUM-POS=5, STEP-SIZE=1.0 1 2 S KD ------------------------------------------------------------------------------------------------------------------------------------ 3 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=1, 1 300 S POS TARG 0.0, 0.0 G FLASH=YES Comments: FUV Exposure at 0.0 arcsec with aperture at 0.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 4 NONE COS ALIGN/A XAPER=63, YAPER=-63 1 0.0 S PER Comments: Move aperture to an alternate lifetime position. This corresponds to displacement in the cross-dispersion direction of: -3.0 arcsec (63 x -0.0476), and in the dispersion direction of: -3.0 arcsec (-63 x 0.0476). ------------------------------------------------------------------------------------------------------------------------------------ 5 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=ALL, 1 335 S POS TARG -3.0, -3.0; G FLASH=NO, WAVECAL=NO SPEC COM INSTR ELNOAPMAIN Comments: FUV Exposures at (-3.0, -3.0) arcsec (XD, D) with aperture at (-3.0, -3.0) arcsec. FLASH set to NO at non-standard dispersion locations. ------------------------------------------------------------------------------------------------------------------------------------ 6 NONE COS ALIGN/A XAPER=0, YAPER=0 1 0.0 S PER Comments: Move aperture back to nominal position. ------------------------------------------------------------------------------------------------------------------------------------ 7 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=3, 1 300 S POS TARG 0.0, 0.0; SPEC G FLASH=YES COM INSTR ELNOAPMAIN Comments: FUV Exposure at 0.0 arcsec with aperture at 0.0 arcsec. ------------------------------------------------------------------------------------------------------------------------------------ 12678( 7) - 14-Oct-2011 15:47:44 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 8 NONE COS ALIGN/A XAPER=63, YAPER=42 1 0.0 S PER Comments: Move aperture to an alternate lifetime position. This corresponds to displacement in the cross-dispersion direction of: -3.0 arcsec (63 x -0.0476), and in the dispersion direction of: +2.0 arcsec (42 x 0.0476). ------------------------------------------------------------------------------------------------------------------------------------ 9 SK191 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=165, FP-POS=ALL, 1 450 S POS TARG 2.0, -3.0; SPEC G FLASH=NO, WAVECAL=NO COM INSTR ELNOAPMAIN Comments: FUV Exposures at (-3.0, +2.0) arcsec (XD, D) with aperture at (-3.0, +2.0) arcsec. FLASH set to NO at non-standard dispersion locations. ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK191 1 COS/FUV ACQ/PEA PSA G130M 1291 none none none none 1 N/A KXD SK191 2 COS/FUV ACQ/PEA PSA G130M 1291 none none none none 1 N/A KD SK191 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G NONE 4 COS ALIGN/A none none none none 1 N/A PER SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 1 1 N/A G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 2 1 N/A G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 3 1 N/A G SK191 5 COS/FUV TIME-TA PSA G130M 1291 none none none 4 1 N/A G NONE 6 COS ALIGN/A none none none none 1 N/A PER SK191 7 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G NONE 8 COS ALIGN/A none none none none 2 N/A PER SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 1 2 N/A G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 2 2 N/A G 12678( 7) - 14-Oct-2011 15:47:44 - [ 10] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 3 2 N/A G SK191 9 COS/FUV TIME-TA PSA G130M 1291 none none none 4 2 N/A G 12678( 7) - 14-Oct-2011 15:47:44 - [ 11] Summary Form for Proposal 12678 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS, COS/FUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAKD, ACQ/PEAKXD, ALIGN/APER, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=165, FLASH=NO, FLASH=YES, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4, FP-POS=ALL, NUM-POS=5, STEP-SIZE=1.0, WAVECAL=NO, XAPER=-126, XAPER=-63, XAPER=0, XAPER=126, XAPER=63, YAPER=-63, YAPER=0, YAPER=42 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements POS TARG -3.0, -3.0, POS TARG 0.0, -3.0, POS TARG 0.0, -6.0, POS TARG 0.0, 0.0, POS TARG 0.0, 3.0, POS TARG 0.0, 6.0, POS TARG 2.0, -3.0, SCHED 70%, SCHED 80%, SPEC COM INSTR ELNOAPMAIN ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M ------------------------------------------------------------------------------------------------------------------------------------ Target Names NONE, SK191 ------------------------------------------------------------------------------------------------------------------------------------