16035( 5) - 16-Jul-2020 16:55:56 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16035 Version: 5 Check-in Time: 16-Jul-2020 16:55:56 STScI Edit Number: 2 Title Exploring evolved planetary systems: three new gaseous debris discs ------------------------------------------------------------------------------------ Type Cycle GO 27 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Nicola Gentile Fusillo European Southern Observatory - Germany Y CoI: Prof. Boris T. Gaensicke The University of Warwick N CoI: Prof. Detlev G. Koester Universitat Kiel N CoI: Dr. Odette Fabiola Toloza The University of Warwick N Castillo CoI: Dr. Christopher James Manser The University of Warwick N ------------------------------------------------------------------------------------ Abstract It is now established that planets survive the evolution of their host star into a white dwarf. Planetary remnants around a number of these ancient stars are revealed by compact debris disks, formed from the tidal disruption of planetesimals, which are detectable as IR flux excess. Accretion from these disks results in metal pollution of the otherwise pristine H or He white dwarf atmospheres, and the analysis of adequate optical and UV spectroscopy of these systems allows to reconstruct the bulk composition of the disrupted planetesimals. Deeper insight into the properties of the parent bodies arises from mineralogical studies of the dusty disks, but requires sensitive IR spectroscopy - available currently only for one single system. The imminent launch of JWST will enable revolutionary IR spectroscopic studies, and now is the time to identify the best targets for these JWST observations. White dwarf debris disks which contain copious amounts of metallic gas in addition to circumstellar dust are ideal targets, as they are actively undergoing planetesimal disruption events right now. However, these systems are extremely elusive, and so far, only three such systems were amenable to COS ultraviolet studies of their elemental abundances. We have identified three new gaseous debris disks, and request here COS spectroscopy to fully characterise the elemental abundances of the debris. With the atomic abundances in hand, these systems are prime targets for JWST IR spectroscopy, which will enable the detailed mineralogical modelling of the dusty debris. Combined, these observations will dramatically augment our knowledge of the composition and structure of rocky exo-planets. ------------------------------------------------------------------------------------ Observations Description ------------------------ The goal of these observations is to obtain high signal-to-noise far-ultraviolet spectra of three white dwarfs which are accreting planetary debris from circumstellar debris disks. The planned COS spectroscopy will be used to measure the abundances of that material from the sharp photospheric metal lines. We use the G130M grating with two central wavelengths to maximise the 16035( 5) - 16-Jul-2020 16:55:56 - [ 2] wavelength covered by these observations, and to achieve gap-less coverage. We make use of all permitted FP-POS positions, i.e. 3 & 4 for @1291A, and 1, 2, 3, 4 @ 1222A. The @1291A and @1222A observations are split into two separate visits to facilitate the scheduling. This program should not be affected in case that HST moves to a 2-gyro mode. ------------------------------------------------------------------------------------ 16035( 5) - 16-Jul-2020 16:55:56 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ052914.32 STAR, DA RA=05H29M14.3225S +/- J2000 V = 17.5 GALEX FUV=16.7 -340108.11 0.0000660", DEC=-34D01'8.62" +/- 0.0000723" Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 -3.136870737538486E-5 -0.032610999999999994 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ213350.72 STAR, DA RA=21H33M50.7127S +/- J2000 V = 17.4 +/- 0.1 +242805.93 0.0001409", DEC=+24D28'5.50" +/- 0.0000926" Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 -3.2359496632097215E-4 -0.027482 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ221202.88 STAR, DA RA=22H12M2.8452S +/- 0.0001182", J2000 V = 17.3 +/- 0.1 GALEX FUV=16.9 -135239.96 DEC=-13D52'40.17" +/- 0.0000998 " Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 -0.0019681858928221182 -0.013044 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 16035( 5) - 16-Jul-2020 16:55:56 - [ 4] Visit: 01 (WDJ0529 @ 1291) Visit Requirements: On Hold Comments: Additional Comments: Only two FP-POS settings allowed for the 1291A central wavelength. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ052914.3 COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 2-340108.11 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=2445, FP-POS=3 1 2451 S 2-340108.11 G (2451 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1500, FP-POS=4 1 2814 S 2-340108.11 G (2814 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ052914.32-340108 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .11 GE WDJ052914.32-340108 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A .11 G WDJ052914.32-340108 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A .11 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 5] Visit: 02 (WDJ0529 @ 1222) 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ052914.3 COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 2-340108.11 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1820, FP-POS=1 1 1930 S 2-340108.11 G (1930 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=401, FP-POS=2 1 401 S (401 2-340108.11 G S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1420, FP-POS=2 1 1530 S 2-340108.11 G (1530 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1179, FP-POS=3 1 1179 S 2-340108.11 G (1179 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=641, FP-POS=3 1 751 S (751 2-340108.11 G S) ------------------------------------------------------------------------------------------------------------------------------------ 7 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=900, FP-POS=4 1 1948 S 2-340108.11 G (1948 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ052914.32-340108 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .11 GE WDJ052914.32-340108 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A .11 G WDJ052914.32-340108 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A .11 G WDJ052914.32-340108 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A .11 G WDJ052914.32-340108 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A .11 G WDJ052914.32-340108 6 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A .11 G WDJ052914.32-340108 7 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A .11 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 6] Visit: 03 (WDJ2133 @ 1291) Visit Requirements: On Hold Comments: Additional Comments: Only two FP-POS settings allowed for the 1291A central wavelength. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ213350.7 COS/NUV ACQ/IMA PSA MIRRORB 1 10 S (10 2+242805.93 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ213350.7 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1300, FP-POS=3 1 2432 S 2+242805.93 G (2432 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ213350.7 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1300, FP-POS=4 1 2791 S 2+242805.93 G (2791 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ213350.72+242805 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .93 GE WDJ213350.72+242805 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A .93 G WDJ213350.72+242805 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A .93 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 7] Visit: 04 (WDJ2133 @ 1222) 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ213350.7 COS/NUV ACQ/IMA PSA MIRRORB 1 10 S (10 2+242805.93 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ213350.7 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1046, FP-POS=1 1 1156 S 2+242805.93 G (1156 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ213350.7 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1100, FP-POS=2 1 1156 S 2+242805.93 G (1156 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WDJ213350.7 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1233, FP-POS=3 1 1343 S 2+242805.93 G (1343 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WDJ213350.7 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1300, FP-POS=4 1 1343 S 2+242805.93 G (1343 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ213350.72+242805 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .93 GE WDJ213350.72+242805 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A .93 G WDJ213350.72+242805 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A .93 G WDJ213350.72+242805 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A .93 G WDJ213350.72+242805 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A .93 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 8] Visit: 07 (WDJ2212 @ 1291) Visit Requirements: On Hold Comments: Additional Comments: Only two FP-POS settings allowed for the 1291A central wavelength. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ221202.8 COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 8-135239.96 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1500, FP-POS=3 1 2420 S 8-135239.96 G (2420 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1500, FP-POS=4 1 2783 S 8-135239.96 G (2783 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ221202.88-135239 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .96 GE WDJ221202.88-135239 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A .96 G WDJ221202.88-135239 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A .96 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 9] Visit: 08 (WDJ2212 @ 1222) 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ221202.8 COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 8-135239.96 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1940, FP-POS=1 1 2050 S 8-135239.96 G (2050 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=200, FP-POS=2 1 250 S (250 8-135239.96 G S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=1690, FP-POS=2 1 1800 S 8-135239.96 G (1800 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=800, FP-POS=3 1 878 S (878 8-135239.96 G S) ------------------------------------------------------------------------------------------------------------------------------------ 6 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=500, FP-POS=3 1 609 S (609 8-135239.96 G S) ------------------------------------------------------------------------------------------------------------------------------------ 7 WDJ221202.8 COS/FUV TIME-TA PSA G130M 1222 BUFFER-TIME=900, FP-POS=4 1 2059 S 8-135239.96 G (2059 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ221202.88-135239 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .96 GE WDJ221202.88-135239 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A .96 G WDJ221202.88-135239 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A .96 G WDJ221202.88-135239 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A .96 G WDJ221202.88-135239 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A .96 G WDJ221202.88-135239 6 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A .96 G WDJ221202.88-135239 7 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A .96 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 10] Visit: H1 (WDJ0529 @ 1291-HOPR) Visit Requirements: On Hold Comments: Additional Comments: This is a HOPR Repeat for exposure 03 of failed visit 01. Only two FP-POS settings allowed for the 1291A central wavelength. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ052914.3 COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 2-340108.11 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1500, FP-POS=4 1 2451 S 2-340108.11 G (2451 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ052914.32-340108 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .11 GE WDJ052914.32-340108 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A .11 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 11] Visit: H2 (WDJ0529 @ 1291-HOPR) Visit Requirements: On Hold Comments: Additional Comments: This is a HOPR Repeat for failed visit H1. Only two FP-POS settings allowed for the 1291A central wavelength. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WDJ052914.3 COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 2-340108.11 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WDJ052914.3 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=1500, FP-POS=4 1 2451 S 2-340108.11 G (2451 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WDJ052914.32-340108 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A .11 GE WDJ052914.32-340108 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A .11 G 16035( 5) - 16-Jul-2020 16:55:56 - [ 12] Summary Form for Proposal 16035 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=1046, BUFFER-TIME=1100, BUFFER-TIME=1179, BUFFER-TIME=1233, BUFFER-TIME=1300, BUFFER-TIME=1420, BUFFER-TIME=1500, BUFFER-TIME=1690, BUFFER-TIME=1820, BUFFER-TIME=1940, BUFFER-TIME=200, BUFFER-TIME=2445, BUFFER-TIME=401, BUFFER-TIME=500, BUFFER-TIME=641, BUFFER-TIME=800, BUFFER-TIME=900, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names WDJ052914.32-340108.11, WDJ213350.72+242805.93, WDJ221202.88-135239.96 ------------------------------------------------------------------------------------------------------------------------------------