11561( 6) - 23-Feb-2010 11:26:04 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11561 Version: 6 Check-in Time: 23-Feb-2010 11:26:04 STScI Edit Number: 2 Title An intensive COS spectroscopic study of the planetary debris disks around two warm white dwarfs ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Boris T. Gaensicke The University of Warwick CoI: Dr. Thomas R. Marsh The University of Warwick N CoI: Dr. Detlev G. Koester Universitat Kiel N CoI: Dr. John Southworth The University of Warwick N CoI: Mr. Alberto Rebassa-Mansergas The University of Warwick N ------------------------------------------------------------------------------------ Abstract It is very likely that the gas giants in our Solar system will survive the evolution of the Sun into a white dwarf, and the same is thought to be generally true for Jovian planets around solar-like stars if their initial orbits are wider than ~3AU. Despite this prediction, no unambiguous detection of a planet around a white dwarf has been announced so far. However, over the past few years, about a dozen white dwarfs have been identified which host metal-rich debris disks that are thought to stem from the tidal disruption of asteroids. In most cases the debris disks are observed in the form of an infrared flux excess, and offer relatively little diagnostic potential for the study of their structure. We have discovered three warm (T~20000K) white dwarfs with metal-rich debris disks in a gaseous phase which display strong double-peaked CaII emission lines in the I-band and weak Fe 5169A emission. The line profiles can be modelled in terms of Keplerian disks with an extension of ~1Rsun around the white dwarfs. Photospheric MgII 4481A absorption demonstrates that the white dwarfs are accreting from the debris disks. Besides these spectral features, the optical wavelength range is devoid of other useful metal transitions. Here, we propose an intensive spectroscopic ultraviolet study of these systems, which will provide (a) ~1000 photospheric absorption lines of 15 chemical elements, allowing an accurate abundance study of the material accreted from the debris disks, and (b) ~2 dozen additional emission lines of Mg, Cr, Ti, and Fe that will provide detailed insight into the dynamical, thermal, and density structure of these exo-planetary debris disks. ------------------------------------------------------------------------------------ Observations Description ------------------------ The main scientific thrust of this proposal is (1) to determine the photospheric abundances of the two white dwarfs SDSS1228+1040 and SDSS0845+2257, which reflect the abundances in the debris disks, and (2) to obtain high-quality observations of the Mg, Cr, Ti, and Fe emission line profiles predicted to be present in the near-ultraviolet. Both goals need sufficiently high spectral resolution to avoid blending of the photospheric absorption lines, which would hinder accurate abundance determinations, and to fully resolve the kinematic structure of the emission line profiles, which will have a complex structure due to the number of components. 11561( 6) - 23-Feb-2010 11:26:04 - [ 2] We will cover the far-ultraviolet (FUV) of the spectrum with three orbits of COS G130M/ G160M observations per target, where two different central wavelength settings (1291/1327 & 1577/1623) will be used to cover the gaps between the two FUV detector segments. Given the large degree of overlap between these settings, we decided to adopt only two different FP-POS positions for each G130M observation. The expected S/N of the G160M observations is too low to warrant FP-POS dithering, so we go for single exposures. The emission lines from the debris disk in the near-ultraviolet (NUV) will be observed with the G225M/G285M gratings, using a total of 6 central wavelengths (2339/2373/2410 & 2657/2695/2739) to get nearly continuous coverage over the range 2225-2875, requiring 5 orbits per object. No FP-POS dithering will be done as the grating seetings overlap already to a large degree. All observations will be done in TIME-TAG mode using TAG-FLASH wavelength calibrations. Both targets are GSC-II objects, and have measured GALEX FUV and NUV fluxes. Real Time Justification ----------------------- N/A Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11561( 6) - 23-Feb-2010 11:26:04 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ122859. STAR, DA RA=12H28M59.9300S +/- 0.03", J2000 V = 16.5 +/- 0.1 GALEX FUV: 2352.02 +/- 93+104032.9 DEC=+10D40'32.90" +/- 0.1" 45.70 microJy, GALEX NUV: 1696.94 +/- 26.43 microJy Reference Frame: ICRS Comments: This is a nearby white dwarf, no extinction. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2003.94 -0.0033 -0.026 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ084539. STAR, DB RA=08H45M39.1700S +/- 0.03", J2000 V = 16.0 +/- 0.1 GALEX FUV: 1941.27 +/- 17+225728.0 DEC=+22D57'28.00" +/- 0.1" 46.05 microJy, GALEX NUV: 2475.09 +/- 31.39 microJy (looked up in GR2, as GR4 seems to be not yet completely ingested at MAST) Reference Frame: ICRS Comments: This is a nearby white dwarf, no extinction Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2004.28 -0.0012 -0.063 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 11561( 6) - 23-Feb-2010 11:26:04 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ084539 COS/NUV ACQ/SEA PSA MIRRORB SCAN-SIZE=2 1 7.2 S .17+225728. RCH 0 Comments: I used a 19000K DB model spectrum scaled to an SDSS g=15.7, which reproduces within ~15% the observed GALEX fluxes of SDSS0845+2257, as input for the COS ETC to calculate the exposure time for a S/N=40s image (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ084539 COS/NUV ACQ/IMA PSA MIRRORB 1 7.2 S .17+225728. GE 0 Comments: I used a 19000K DB model spectrum scaled to an SDSS g=15.7, which reproduces within ~15% the observed GALEX fluxes of SDSS0845+2257, as input for the COS ETC to calculate the exposure time for a S/N=40s image (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 3 SDSSJ084539 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=500, FLASH=YES, 1 680 S .17+225728. G FP-POS=1 0 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is -2 step for 1291A. ------------------------------------------------------------------------------------------------------------------------------------ 4 SDSSJ084539 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=500, FLASH=YES, 1 680 S .17+225728. G FP-POS=4 0 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is +1 step for 1291A. ------------------------------------------------------------------------------------------------------------------------------------ 11561( 6) - 23-Feb-2010 11:26:04 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 SDSSJ084539 COS/FUV TIME-TA PSA G130M 1327 BUFFER-TIME=500, FLASH=YES, 1 630 S .17+225728. G FP-POS=1 0 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is -2 step for 1327A. ------------------------------------------------------------------------------------------------------------------------------------ 6 SDSSJ084539 COS/FUV TIME-TA PSA G130M 1327 BUFFER-TIME=500, FLASH=YES, 1 745 S .17+225728. G FP-POS=4 0 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is +1 step for 1327A. ------------------------------------------------------------------------------------------------------------------------------------ 7 SDSSJ084539 COS/FUV TIME-TA PSA G160M 1577 BUFFER-TIME=900, FLASH=YES 1 1995 S .17+225728. G 0 Comments: The expected S/N with the G160M grating does not warrant the additional overhead necessary for FP-POS splitting. Two different central wavelength are observed, which should help to iron out to some extent fixed pattern noise. ------------------------------------------------------------------------------------------------------------------------------------ 8 SDSSJ084539 COS/FUV TIME-TA PSA G160M 1623 BUFFER-TIME=900, FLASH=YES 1 2999 S .17+225728. G 0 Comments: The expected S/N with the G160M grating does not warrant the additional overhead necessary for FP-POS splitting. Two different central wavelength are observed, which should help to iron out to some extent fixed pattern noise. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ084539.17+2257 1 COS/NUV ACQ/SEA PSA MIRRORB none none none none 1 N/A 28.0 RCH 11561( 6) - 23-Feb-2010 11:26:04 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ084539.17+2257 2 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 28.0 GE SDSSJ084539.17+2257 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 28.0 G SDSSJ084539.17+2257 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 28.0 G SDSSJ084539.17+2257 5 COS/FUV TIME-TA PSA G130M 1327 none none none none 1 N/A 28.0 G SDSSJ084539.17+2257 6 COS/FUV TIME-TA PSA G130M 1327 none none none none 2 N/A 28.0 G SDSSJ084539.17+2257 7 COS/FUV TIME-TA PSA G160M 1577 none none none none 2 N/A 28.0 G SDSSJ084539.17+2257 8 COS/FUV TIME-TA PSA G160M 1623 none none none none 3 N/A 28.0 G 11561( 6) - 23-Feb-2010 11:26:04 - [ 7] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ084539 COS/NUV ACQ/SEA PSA MIRRORB SCAN-SIZE=2 1 7.2 S .17+225728. RCH 0 Comments: I used a 19000K DB model spectrum scaled to an SDSS g=15.7, which reproduces within ~15% the observed GALEX fluxes of SDSS0845+2257, as input for the COS ETC to calculate the exposure time for a S/N=40s image (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ084539 COS/NUV ACQ/IMA PSA MIRRORB 1 7.2 S .17+225728. GE 0 Comments: I used a 19000K DB model spectrum scaled to an SDSS g=15.7, which reproduces within ~15% the observed GALEX fluxes of SDSS0845+2257, as input for the COS ETC to calculate the exposure time for a S/N=40s image (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 3 SDSSJ084539 COS/NUV TIME-TA PSA G230L 2635 BUFFER-TIME=2400, FLASH=YES 1 2400 S .17+225728. G see below 0 ------------------------------------------------------------------------------------------------------------------------------------ 4 SDSSJ084539 COS/NUV TIME-TA PSA G230L 2635 BUFFER-TIME=2400, FLASH=YES 1 2400 S .17+225728. G see below 0 ------------------------------------------------------------------------------------------------------------------------------------ 5 SDSSJ084539 COS/NUV TIME-TA PSA G230L 2635 BUFFER-TIME=2400, FLASH=YES 1 2400 S .17+225728. G see below 0 ------------------------------------------------------------------------------------------------------------------------------------ 6 SDSSJ084539 COS/NUV TIME-TA PSA G230L 2950 BUFFER-TIME=2400, FLASH=YES 1 2400 S .17+225728. G see below 0 ------------------------------------------------------------------------------------------------------------------------------------ 7 SDSSJ084539 COS/NUV TIME-TA PSA G230L 2950 BUFFER-TIME=2400, FLASH=YES 1 2400 S .17+225728. G see below 0 ------------------------------------------------------------------------------------------------------------------------------------ 11561( 6) - 23-Feb-2010 11:26:04 - [ 8] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ084539.17+2257 1 COS/NUV ACQ/SEA PSA MIRRORB none none none none 1 N/A 28.0 RCH SDSSJ084539.17+2257 2 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 28.0 GE SDSSJ084539.17+2257 3 COS/NUV TIME-TA PSA G230L 2635 none none none none 1 2397.0 S 28.0 G SDSSJ084539.17+2257 4 COS/NUV TIME-TA PSA G230L 2635 none none none none 2 3000.0 S 28.0 G SDSSJ084539.17+2257 5 COS/NUV TIME-TA PSA G230L 2635 none none none none 3 3000.0 S 28.0 G SDSSJ084539.17+2257 6 COS/NUV TIME-TA PSA G230L 2950 none none none none 4 3000.0 S 28.0 G SDSSJ084539.17+2257 7 COS/NUV TIME-TA PSA G230L 2950 none none none none 5 3000.0 S 28.0 G 11561( 6) - 23-Feb-2010 11:26:04 - [ 9] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ122859 COS/NUV ACQ/SEA PSA MIRRORB SCAN-SIZE=2 1 7.2 S .93+104032. RCH 9 Comments: I used a 22000 DA model spectrum scaled to an SDSS g=16.3, which reproduces the observed GALEX fluxes of SDSS1228+1040 within ~15%, as input for the COS ETC to calculate the exposure time for a S/N=40 detection -> 7.2s (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ122859 COS/NUV ACQ/IMA PSA MIRRORB 1 7.2 S GS ACQ SCENARIO BASE1B3 .93+104032. GE 9 Comments: I used a 22000 DA model spectrum scaled to an SDSS g=16.3, which reproduces the observed GALEX fluxes of SDSS1228+1040 within ~15%, as input for the COS ETC to calculate the exposure time for a S/N=40 detection -> 7.2s (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 3 SDSSJ122859 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=500, FLASH=YES, 1 700 S .93+104032. G FP-POS=1 9 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is -2 step for 1291A. ------------------------------------------------------------------------------------------------------------------------------------ 4 SDSSJ122859 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=500, FLASH=YES, 1 700 S .93+104032. G FP-POS=4 9 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is +1 step for 1291A. ------------------------------------------------------------------------------------------------------------------------------------ 11561( 6) - 23-Feb-2010 11:26:04 - [ 10] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 SDSSJ122859 COS/FUV TIME-TA PSA G130M 1327 BUFFER-TIME=500, FLASH=YES, 1 602 S .93+104032. G FP-POS=1 9 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is -2 step for 1327A. ------------------------------------------------------------------------------------------------------------------------------------ 6 SDSSJ122859 COS/FUV TIME-TA PSA G130M 1327 BUFFER-TIME=500, FLASH=YES, 1 819 S .93+104032. G FP-POS=4 9 Comments: Because I plan to get two different wavelength settings with the G130M grating that will overlap to a large degree, I decided that two FP-POS positions per central wavelength should be enough. This is +1 step for 1327A. ------------------------------------------------------------------------------------------------------------------------------------ 7 SDSSJ122859 COS/FUV TIME-TA PSA G160M 1577 BUFFER-TIME=900, FLASH=YES 1 1907 S .93+104032. G 9 Comments: The expected S/N with the G160M grating does not warrant the additional overhead necessary for FP-POS splitting. Two different central wavelength are observed, which should help to iron out to some extent fixed pattern noise. ------------------------------------------------------------------------------------------------------------------------------------ 8 SDSSJ122859 COS/FUV TIME-TA PSA G160M 1623 BUFFER-TIME=900, FLASH=YES 1 2992 S .93+104032. G 9 Comments: The expected S/N with the G160M grating does not warrant the additional overhead necessary for FP-POS splitting. Two different central wavelength are observed, which should help to iron out to some extent fixed pattern noise. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ122859.93+1040 1 COS/NUV ACQ/SEA PSA MIRRORB none none none none 1 N/A 32.9 RCH 11561( 6) - 23-Feb-2010 11:26:04 - [ 11] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ122859.93+1040 2 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 32.9 GE SDSSJ122859.93+1040 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 32.9 G SDSSJ122859.93+1040 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 32.9 G SDSSJ122859.93+1040 5 COS/FUV TIME-TA PSA G130M 1327 none none none none 1 N/A 32.9 G SDSSJ122859.93+1040 6 COS/FUV TIME-TA PSA G130M 1327 none none none none 2 N/A 32.9 G SDSSJ122859.93+1040 7 COS/FUV TIME-TA PSA G160M 1577 none none none none 2 N/A 32.9 G SDSSJ122859.93+1040 8 COS/FUV TIME-TA PSA G160M 1623 none none none none 3 N/A 32.9 G 11561( 6) - 23-Feb-2010 11:26:04 - [ 12] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ122859 COS/NUV ACQ/SEA PSA MIRRORB SCAN-SIZE=2 1 7.2 S GS ACQ SCENARIO BASE1B3 .93+104032. RCH 9 Comments: I used a 22000 DA model spectrum scaled to an SDSS g=16.3, which reproduces the observed GALEX fluxes of SDSS1228+1040 within ~15%, as input for the COS ETC to calculate the exposure time for a S/N=40 detection -> 7.2s (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ122859 COS/NUV ACQ/IMA PSA MIRRORB 1 7.2 S .93+104032. GE 9 Comments: I used a 22000 DA model spectrum scaled to an SDSS g=16.3, which reproduces the observed GALEX fluxes of SDSS1228+1040 within ~15%, as input for the COS ETC to calculate the exposure time for a S/N=40 detection -> 7.2s (COS72608) ------------------------------------------------------------------------------------------------------------------------------------ 3 SDSSJ122859 COS/NUV TIME-TA PSA G225M 2339 FLASH=YES, BUFFER-TIME=2300 1 2381 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 4 SDSSJ122859 COS/NUV TIME-TA PSA G225M 2373 FLASH=YES, BUFFER-TIME=2050 1 2250 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 5 SDSSJ122859 COS/NUV TIME-TA PSA G225M 2410 FLASH=YES, BUFFER-TIME=635 1 635 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 6 SDSSJ122859 COS/NUV TIME-TA PSA G225M 2410 FLASH=YES, BUFFER-TIME=1500 1 1650 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 7 SDSSJ122859 COS/NUV TIME-TA PSA G285M 2657 FLASH=YES, BUFFER-TIME=1200 1 1200 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 11561( 6) - 23-Feb-2010 11:26:04 - [ 13] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 8 SDSSJ122859 COS/NUV TIME-TA PSA G285M 2657 FLASH=YES, BUFFER-TIME=970 1 1070 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 9 SDSSJ122859 COS/NUV TIME-TA PSA G285M 2695 FLASH=YES, BUFFER-TIME=1620 1 1810 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SDSSJ122859 COS/NUV TIME-TA PSA G285M 2695 FLASH=YES, BUFFER-TIME=500 1 600 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 11 SDSSJ122859 COS/NUV TIME-TA PSA G285M 2739 FLASH=YES, BUFFER-TIME=2269 1 2269 S .93+104032. G 9 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ122859.93+1040 1 COS/NUV ACQ/SEA PSA MIRRORB none none none none 1 N/A 32.9 RCH SDSSJ122859.93+1040 2 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 32.9 GE SDSSJ122859.93+1040 3 COS/NUV TIME-TA PSA G225M 2339 none none none none 1 N/A 32.9 G SDSSJ122859.93+1040 4 COS/NUV TIME-TA PSA G225M 2373 none none none none 2 N/A 32.9 G SDSSJ122859.93+1040 5 COS/NUV TIME-TA PSA G225M 2410 none none none none 2 N/A 32.9 G SDSSJ122859.93+1040 6 COS/NUV TIME-TA PSA G225M 2410 none none none none 3 N/A 32.9 G SDSSJ122859.93+1040 7 COS/NUV TIME-TA PSA G285M 2657 none none none none 3 N/A 32.9 G SDSSJ122859.93+1040 8 COS/NUV TIME-TA PSA G285M 2657 none none none none 4 N/A 32.9 G SDSSJ122859.93+1040 9 COS/NUV TIME-TA PSA G285M 2695 none none none none 4 N/A 32.9 G SDSSJ122859.93+1040 10 COS/NUV TIME-TA PSA G285M 2695 none none none none 5 N/A 32.9 G SDSSJ122859.93+1040 11 COS/NUV TIME-TA PSA G285M 2739 none none none none 5 N/A 32.9 G 11561( 6) - 23-Feb-2010 11:26:04 - [ 14] Summary Form for Proposal 11561 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, ACQ/SEARCH, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=1200, BUFFER-TIME=1500, BUFFER-TIME=1620, BUFFER-TIME=2050, BUFFER-TIME=2269, BUFFER-TIME=2300, BUFFER-TIME=2400, BUFFER-TIME=500, BUFFER-TIME=635, BUFFER-TIME=900, BUFFER-TIME=970, FLASH=YES, FP-POS=1, FP-POS=4, SCAN-SIZE=2 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, G160M, G225M, G230L, G285M, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names SDSSJ084539.17+225728.0, SDSSJ122859.93+104032.9 ------------------------------------------------------------------------------------------------------------------------------------