18072( 2) - 15-Aug-2025 18:00:25 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 18072 Version: 2 Check-in Time: 15-Aug-2025 18:00:25 STScI Edit Number: 0 Title The Fate of the Leading Arm of the Magellanic Stream ------------------------------------------------------------------------------------ Type Cycle GO 33 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Sapna Mishra Space Telescope Science Institute Y CoI: Dr. Andrew J. Fox Space Telescope Science Institute - ESA N CoI: Dr. Elena D'Onghia University of Wisconsin - Madison N CoI: Dr. Jonathan Smoker European Southern Observatory - Chile N CoI: Dr. Scott Lucchini Center for Astrophysics | Harvard & N Smithsonian CoI: Dr. Dhanesh Krishnarao Colorado College N CoI: Dr. Jason Tumlinson Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract The Leading Arm (LA) is a fragmented, multiphase gaseous region of the Magellanic System resulting from tidal and hydrodynamic interactions between the Large and Small Magellanic Clouds (LMC and SMC). It traces the orbital trajectory of the LMC-SMC system and also serves as a potential reservoir of cold gas accreting onto the MW fuel that could sustain ongoing star formation in our Galaxy. Unlike the trailing Magellanic Stream, the LA leads the Magellanic Clouds and is the only Magellanic component currently interacting with the MW disk offering an opportunity to study active gas accretion. However once this gas plunges through the MW disk, how it survives or succumbs to the harsh ionizing environment of the MW remains unclear. We propose studying two regions, LA II and LA III, to investigate the survival of this gas by measuring ionization levels. We request 22 orbits of HST/COS G130M spectroscopy to observe four quasars. Together with three archival sightlines, these observations will map the LA III region over 20 degrees on the sky, sampling a range of distances from the MW disk. Our goals are: (1) calculate the ionized-to-neutral hydrogen ratio, (2) investigate spatial variations in gas properties, and (3) compare our findings with simulations. This study will enhance our understanding of satellite gas accretion, its role in sustaining star formation in the MW, and overall the mechanisms through which galaxies acquire and utilize baryonic matter. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a COS FUV program to observe four QSO targets on the Leading Arm III using G130M. The science goal is to estimate the effect of MW ionizing radiation on to the accreting gas from the Leading Arm by detecting Si metal absorption lines. Each target will be acquired with a NUV ACQ/IMAGE with the PSA and MIRRORB, followed by science observations with the G130M/1291 setting. We used two FP-POS 3 and 4 in each visit. These four objects are spread across 8 visits. All visits are up to 3 orbits in length, following the guidance from the PC. ------------------------------------------------------------------------------------ 18072( 2) - 15-Aug-2025 18:00:25 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 PQSJ105251.0 GALAXY, QSO, QUASAR RA=10H52M51.0194S +/- 0.1", J2000 Z = V = 15.8 FUV = 16.44 4-272716. DEC=-27D27'17.07" +/- 0.1" 0.20700 Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ103236.0 ISM, ABSORPTION LINE RA=10H32M36.0792S +/- 0.1", J2000 Z = V = 16.0 FUV =16.50 7-281326.9 SYSTEM, ABSORPTION LINE DEC=-28D13'26.89" +/- 0.1" 0.14844 SYSTEM - GALACTIC, HALO Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ102239.9 GALAXY, QSO, QUASAR RA=10H22M39.9446S +/- 0.1", J2000 Z = V = 17.41 FUV =17.66 4-302930.6 DEC=-30D29'30.59" +/- 0.1" 0.31654 Reference Frame: ICRS Extended: NO Comments: magnitude given is R-band Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ100159.8 GALAXY, QSO, QUASAR RA=10H01M59.9080S +/- 0.1", J2000 V = 15.9 FUV = 18.00 0-443802.0 DEC=-44D38'0.60" +/- 0.1" Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 18072( 2) - 15-Aug-2025 18:00:25 - [ 3] Visit: 01 (Object1-Visit1-PQSJ105251) 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 PQSJ105251. COS/NUV ACQ/IMA PSA MIRRORB 1 13 S (13 04-272716. GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ105251. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=2641 1 2145 S 04-272716. G (2145 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ105251. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=2641 1 1081 S 04-272716. G (1081 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ105251. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=2641 1 1081 S 04-272716. G (1081 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PQSJ105251. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=2641 1 2542 S 04-272716. G (2542 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ105251.04-27271 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 6. GE PQSJ105251.04-27271 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 6. G PQSJ105251.04-27271 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 6. G PQSJ105251.04-27271 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 6. G PQSJ105251.04-27271 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A 6. G 18072( 2) - 15-Aug-2025 18:00:25 - [ 4] Visit: 02 (Object2-Visit1-PQSJ103236) 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 PQSJ103236. COS/NUV ACQ/IMA PSA MIRRORB 1 12 S (12 07-281326.9 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ103236. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=2295 1 2145 S 07-281326.9 G (2145 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ103236. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=2295 1 1080 S 07-281326.9 G (1080 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ103236. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=2295 1 1080 S 07-281326.9 G (1080 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PQSJ103236. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=2295 1 2542 S 07-281326.9 G (2542 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ103236.07-28132 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 6.9 GE PQSJ103236.07-28132 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 6.9 G PQSJ103236.07-28132 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 6.9 G PQSJ103236.07-28132 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 6.9 G PQSJ103236.07-28132 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A 6.9 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 5] Visit: 03 (Object3-Visit1-PQSJ102239) 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 PQSJ102239. COS/NUV ACQ/IMA PSA MIRRORB 1 25 S (25 94-302930.6 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3700 1 2127 S 94-302930.6 G (2127 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3700 1 1092 S 94-302930.6 G (1092 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3700 1 1092 S 94-302930.6 G (1092 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3700 1 2542 S 94-302930.6 G (2542 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ102239.94-30293 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 0.6 GE PQSJ102239.94-30293 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 0.6 G PQSJ102239.94-30293 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 0.6 G PQSJ102239.94-30293 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 0.6 G PQSJ102239.94-30293 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A 0.6 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 6] Visit: 04 (Object3-Visit2-PQSJ102239) 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 PQSJ102239. COS/NUV ACQ/IMA PSA MIRRORB 1 25 S (25 94-302930.6 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3700 1 2127 S 94-302930.6 G (2127 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3700 1 2540 S 94-302930.6 G (2540 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ102239.94-30293 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 0.6 GE PQSJ102239.94-30293 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 0.6 G PQSJ102239.94-30293 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 0.6 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 7] Visit: 05 (Object3-Visit3-PQSJ102239) 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 PQSJ102239. COS/NUV ACQ/IMA PSA MIRRORB 1 25 S (25 94-302930.6 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3700 1 2127 S 94-302930.6 G (2127 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ102239. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3700 1 2540 S 94-302930.6 G (2540 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ102239.94-30293 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 0.6 GE PQSJ102239.94-30293 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 0.6 G PQSJ102239.94-30293 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 0.6 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 8] Visit: 06 (Object4-Visit1-PQSJ100159) 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 PQSJ100159. COS/NUV ACQ/IMA PSA MIRRORB 1 15 S (15 80-443802.0 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3767 1 2161 S 80-443802.0 G (2161 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3767 1 2561 S 80-443802.0 G (2561 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3767 1 2561 S 80-443802.0 G (2561 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ100159.80-44380 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 2.0 GE PQSJ100159.80-44380 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 2.0 G PQSJ100159.80-44380 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 2.0 G PQSJ100159.80-44380 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A 2.0 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 9] Visit: 07 (Object4-Visit2-PQSJ100159) 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 PQSJ100159. COS/NUV ACQ/IMA PSA MIRRORB 1 15 S (15 80-443802.0 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3767 1 2161 S 80-443802.0 G (2161 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3767 1 2561 S 80-443802.0 G (2561 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3767 1 2561 S 80-443802.0 G (2561 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ100159.80-44380 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 2.0 GE PQSJ100159.80-44380 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 2.0 G PQSJ100159.80-44380 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 2.0 G PQSJ100159.80-44380 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A 2.0 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 10] Visit: 08 (Object4-Visit3-PQSJ100159) 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 PQSJ100159. COS/NUV ACQ/IMA PSA MIRRORB 1 15 S (15 80-443802.0 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3767 1 2161 S 80-443802.0 G (2161 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=3767 1 1099 S 80-443802.0 G (1099 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3767 1 1099 S 80-443802.0 G (1099 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PQSJ100159. COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=3767 1 2561 S 80-443802.0 G (2561 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 | ------------------------------------------------------------------------------------------------------------------------------------ PQSJ100159.80-44380 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A 2.0 GE PQSJ100159.80-44380 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A 2.0 G PQSJ100159.80-44380 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 2.0 G PQSJ100159.80-44380 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A 2.0 G PQSJ100159.80-44380 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A 2.0 G 18072( 2) - 15-Aug-2025 18:00:25 - [ 11] Summary Form for Proposal 18072 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=2295, BUFFER-TIME=2641, BUFFER-TIME=3700, BUFFER-TIME=3767, FP-POS=3, FP-POS=4 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names PQSJ100159.80-443802.0, PQSJ102239.94-302930.6, PQSJ103236.07-281326.9, PQSJ105251.04-272716. ------------------------------------------------------------------------------------------------------------------------------------