18392( 2) - 17-Aug-2026 15:42:00 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 18392 Version: 2 Check-in Time: 17-Aug-2026 15:42:00 STScI Edit Number: 0 Title Probing SMBH Locations, Properties, and Accretion Physics with Late-time observations of TDEs ------------------------------------------------------------------------------------ Type Cycle GO 34 ------------------------------------------------------------------------------------ Investigators Contact? PI: Xinze Guo Harvard University Y CoI: Prof. Edo Berger Harvard University N CoI: Dr. Peter Blanchard Harvard University N CoI: Dr. Matt Nicholl Queen's University Belfast N CoI: Dr. Harsh Kumar Center for Astrophysics | Harvard & N Smithsonian CoI: Yuyang Chen Center for Astrophysics | Harvard & N Smithsonian ------------------------------------------------------------------------------------ Abstract Supermassive black holes (SMBHs) are fundamental components of galaxies, closely linked to their evolution through established scaling relations and feedback processes. Despite their significance, we know very little about their properties because most SMBHs in the nearby universe are inactive and difficult to detect. Although they are widely assumed to reside at galaxy centers, their alignment with host galaxies has not been tested at parsec scales. Processes such as mergers and gravitational recoil can displace SMBHs for Gyr, affecting gas accretion and feedback. Measuring SMBH offsets therefore opens a direct probe of galaxy dynamical evolution. Tidal disruption events (TDEs), in which stars are ripped apart and accreted by SMBHs, temporarily illuminate these otherwise dormant systems and provide a unique probe of SMBH properties. At late times, TDEs exhibit persistent UV emission that traces the SMBH position, enabling precise localization. With high-resolution HST imaging, we can measure the offset of the TDE/SMBH (traced by UV) from the center of the stellar light (traced by optical). We propose HST UV and optical imaging of 28 TDEs at ~1000-2000 days post-peak, increasing the existing sample with such data by a factor of ~2.5. This statistically significant sample will enable the first robust test of SMBH-host alignment at parsec scales, providing new constraints on galaxy dynamical evolution and the origin of TDE host preferences. In addition, this program will provide unprecedented constraints on the evolution of late-time UV emission in TDEs, probing the physics of accretion discs and enabling independent SMBH mass measurements. ------------------------------------------------------------------------------------ Observations Description ------------------------ We plan to observe 28 targets using a total of 56 HST orbits with WFC3/UVIS in two filters, F225W and F625W. For each target, one orbit will be allocated to each filter. The two orbits will be scheduled consecutively within the same visit to ensure a consistent telescope orientation, thereby maximizing the number of common sources available for relative astrometric alignment between the two filters. We will use a four-point box dither pattern for all observations to improve spatial sampling and image resolution. 18392( 2) - 17-Aug-2026 15:42:00 - [ 2] ------------------------------------------------------------------------------------ 18392( 2) - 17-Aug-2026 15:42:00 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 2020AFHD GALAXY, NUCLEUS RA=03H13M35.7000S, J2000 15.97 in Pan-STARRS-r DEC=-02D09'6.37" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 2022GRI GALAXY, NUCLEUS RA=07H18M20.7782S, J2000 15.50 in Pan-STARRS-r DEC=+33D59'41.58" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 2022DBL GALAXY, NUCLEUS RA=12H20M45.0096S, J2000 15.49 in SDSS-r DEC=+49D33'4.68" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 4 2023LLI GALAXY, NUCLEUS RA=22H57M39.4699S, J2000 16.26 in Pan-STARRS-r DEC=+40D32'40.02" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 5 2024DOO GALAXY, NUCLEUS RA=13H12M35.0100S, J2000 16.07 in DECaLS/Legacy r DEC=-35D38'34.69" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 6 2020VDQ GALAXY, NUCLEUS RA=10H08M53.4401S, J2000 18.31 in SDSS-r DEC=+42D43'0.23" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 7 2024PVU GALAXY, NUCLEUS RA=23H31M11.9303S, J2000 16.05 in SDSS-r DEC=+22D15'32.20" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 8 2023MHS GALAXY, NUCLEUS RA=13H43M15.6811S, J2000 16.85 in SDSS-r DEC=+19D15'0.90" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 9 2024GXR GALAXY, NUCLEUS RA=17H22M32.6367S, J2000 15.76 in Pan-STARRS-r DEC=+18D13'58.20" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 10 2021YTE GALAXY, NUCLEUS RA=06H55M4.7260S, J2000 18.72 in SDSS-r DEC=+12D38'2.96" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 11 2022UPJ GALAXY, NUCLEUS RA=00H23M56.8459S, J2000 16.25 in SDSS-r DEC=-14D25'23.22" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 12 2020ZSO GALAXY, NUCLEUS RA=22H22M17.1300S, J2000 16.83 in SDSS-r DEC=-07D15'59.08" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 18392( 2) - 17-Aug-2026 15:42:00 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 13 2024BGZ GALAXY, NUCLEUS RA=09H44M4.7700S, J2000 15.97 in Pan-STARRS-r DEC=-04D12'4.93" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 14 2021SDU GALAXY, NUCLEUS RA=01H11M23.9239S, J2000 16.91 in Pan-STARRS-r DEC=+50D34'29.67" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 15 2023WDB GALAXY, NUCLEUS RA=18H25M20.9153S, J2000 17.83 in Pan-STARRS-r DEC=+30D11'21.46" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 16 2022ADM GALAXY, NUCLEUS RA=14H27M51.4399S, J2000 17.74 in SDSS-r DEC=+28D10'29.03" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 17 2024YQO GALAXY, NUCLEUS RA=08H11M12.4837S, J2000 15.56 in SDSS-r DEC=+20D22'49.44" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 18 2022ARB GALAXY, NUCLEUS RA=10H24M10.3313S, J2000 18.38 in SDSS-r DEC=-00D49'22.79" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 19 2020NEH GALAXY, NUCLEUS RA=15H21M20.0899S, J2000 17.59 in SDSS-r DEC=+14D04'10.52" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 20 2024WSD GALAXY, NUCLEUS RA=05H26M38.3203S, J2000 18.85 in Pan-STARRS-r DEC=-17D54'54.68" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 21 2020UKJ GALAXY, NUCLEUS RA=07H31M34.2200S, J2000 16.84 in Pan-STARRS-r DEC=+57D16'28.81" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 22 2020PJ GALAXY, NUCLEUS RA=15H31M34.9603S, J2000 17.70 in SDSS-r DEC=+33D05'41.47" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 23 2020MOT GALAXY, NUCLEUS RA=00H31M13.5600S, J2000 17.25 in Pan-STARRS-r DEC=+85D00'31.90" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 24 2020OCN GALAXY, NUCLEUS RA=13H53M53.8010S, J2000 17.46 in SDSS-r DEC=+53D59'49.73" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 18392( 2) - 17-Aug-2026 15:42:00 - [ 5] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 25 2023CVB GALAXY, NUCLEUS RA=19H14M25.6799S, J2000 16.71 in Pan-STARRS-r DEC=+41D40'9.28" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 26 2022DYT GALAXY, NUCLEUS RA=10H00M8.0084S, J2000 16.47 in SDSS-r DEC=+26D27'38.57" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 27 2022FPX GALAXY, NUCLEUS RA=15H31M3.7001S, J2000 17.89 in SDSS-r DEC=+53D24'19.26" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 28 2021MHG GALAXY, NUCLEUS RA=00H19M42.9000S, J2000 18.89 in SDSS-r DEC=+29D19'0.70" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 18392( 2) - 17-Aug-2026 15:42:00 - [ 6] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG Pattern_Orient 23.884 Angle_Between_Sides 81.785 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 18392( 2) - 17-Aug-2026 15:42:00 - [ 7] 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2020AFHD WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020AFHD WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020AFHD 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020AFHD 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020AFHD 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020AFHD 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020AFHD 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020AFHD 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020AFHD 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020AFHD 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 8] 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2022GRI WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 566 S PATTERN 1 1 S (2264 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022GRI WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022GRI 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022GRI 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022GRI 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022GRI 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022GRI 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022GRI 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022GRI 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022GRI 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2022DBL WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 572 S PATTERN 1 1 S (2288 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022DBL WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 572 S PATTERN 1 2 S (2288 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022DBL 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022DBL 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022DBL 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022DBL 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022DBL 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022DBL 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022DBL 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022DBL 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 10] 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2023LLI WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 570 S PATTERN 1 1 S (2280 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2023LLI WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 569 S PATTERN 1 2 S (2276 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2023LLI 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2023LLI 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2023LLI 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2023LLI 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2023LLI 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2023LLI 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2023LLI 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2023LLI 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 11] Visit: 05 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 2024DOO WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 566 S PATTERN 1 1 S (2264 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2024DOO WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 567 S PATTERN 1 2 S (2268 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2024DOO 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2024DOO 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2024DOO 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2024DOO 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2024DOO 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2024DOO 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2024DOO 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2024DOO 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 12] Visit: 06 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 2020VDQ WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 570 S PATTERN 1 1 S (2280 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020VDQ WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 569 S PATTERN 1 2 S (2276 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020VDQ 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020VDQ 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020VDQ 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020VDQ 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020VDQ 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020VDQ 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020VDQ 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020VDQ 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 13] Visit: 07 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 2024PVU WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S see below (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2024PVU WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2024PVU 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 564.0 S S 2024PVU 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 564.0 S S 2024PVU 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 564.0 S S 2024PVU 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 564.0 S S 2024PVU 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2024PVU 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2024PVU 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2024PVU 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 14] Visit: 08 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 2023MHS WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2023MHS WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2023MHS 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2023MHS 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2023MHS 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2023MHS 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2023MHS 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2023MHS 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2023MHS 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2023MHS 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 15] Visit: 09 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 2024GXR WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2024GXR WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2024GXR 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2024GXR 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2024GXR 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2024GXR 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2024GXR 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2024GXR 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2024GXR 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2024GXR 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 16] Visit: 10 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 2021YTE WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 563 S PATTERN 1 1 S (2252 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2021YTE WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2021YTE 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2021YTE 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2021YTE 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2021YTE 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2021YTE 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2021YTE 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2021YTE 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2021YTE 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 17] Visit: 11 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 2022UPJ WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 563 S PATTERN 1 1 S (2252 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022UPJ WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022UPJ 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022UPJ 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022UPJ 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022UPJ 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022UPJ 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022UPJ 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022UPJ 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022UPJ 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 18] Visit: 12 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 2020ZSO WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020ZSO WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020ZSO 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020ZSO 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020ZSO 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020ZSO 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020ZSO 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020ZSO 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020ZSO 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020ZSO 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 19] Visit: 13 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 2024BGZ WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2024BGZ WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2024BGZ 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2024BGZ 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2024BGZ 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2024BGZ 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2024BGZ 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2024BGZ 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2024BGZ 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2024BGZ 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 20] Visit: 14 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 2021SDU WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 576 S PATTERN 1 1 S (2304 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2021SDU WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 576 S PATTERN 1 2 S (2304 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2021SDU 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2021SDU 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2021SDU 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2021SDU 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2021SDU 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2021SDU 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2021SDU 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2021SDU 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 21] Visit: 15 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 2023WDB WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 566 S PATTERN 1 1 S (2264 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2023WDB WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2023WDB 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2023WDB 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2023WDB 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2023WDB 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2023WDB 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2023WDB 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2023WDB 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2023WDB 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 22] Visit: 16 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 2022ADM WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 565 S PATTERN 1 1 S (2260 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022ADM WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022ADM 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022ADM 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022ADM 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022ADM 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022ADM 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022ADM 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022ADM 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022ADM 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 23] Visit: 17 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 2024YQO WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2024YQO WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2024YQO 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2024YQO 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2024YQO 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2024YQO 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2024YQO 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2024YQO 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2024YQO 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2024YQO 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 24] Visit: 18 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 2022ARB WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022ARB WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 564 S PATTERN 1 2 S (2256 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022ARB 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022ARB 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022ARB 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022ARB 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022ARB 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022ARB 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022ARB 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022ARB 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 25] Visit: 19 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 2020NEH WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 563 S PATTERN 1 1 S (2252 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020NEH WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020NEH 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020NEH 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020NEH 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020NEH 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020NEH 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020NEH 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020NEH 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020NEH 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 26] Visit: 20 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 2024WSD WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 564 S PATTERN 1 1 S (2256 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2024WSD WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 563 S PATTERN 1 2 S (2252 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2024WSD 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2024WSD 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2024WSD 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2024WSD 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2024WSD 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2024WSD 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2024WSD 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2024WSD 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 27] Visit: 21 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 2020UKJ WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 581 S PATTERN 1 1 S (2324 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020UKJ WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 580 S PATTERN 1 2 S (2320 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020UKJ 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020UKJ 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020UKJ 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020UKJ 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020UKJ 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020UKJ 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020UKJ 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020UKJ 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 28] Visit: 22 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 2020PJ WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 566 S PATTERN 1 1 S (2264 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020PJ WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 566 S PATTERN 1 2 S (2264 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020PJ 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020PJ 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020PJ 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020PJ 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020PJ 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020PJ 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020PJ 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020PJ 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 29] Visit: 23 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 2020MOT WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 626 S PATTERN 1 1 S (2504 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020MOT WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 625 S PATTERN 1 2 S (2500 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020MOT 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020MOT 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020MOT 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020MOT 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020MOT 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020MOT 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020MOT 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020MOT 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 30] Visit: 24 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 2020OCN WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 576 S PATTERN 1 1 S (2304 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2020OCN WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 576 S PATTERN 1 2 S (2304 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2020OCN 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2020OCN 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2020OCN 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2020OCN 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2020OCN 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2020OCN 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2020OCN 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2020OCN 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 31] Visit: 25 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 2023CVB WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 570 S PATTERN 1 1 S (2280 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2023CVB WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 569 S PATTERN 1 2 S (2276 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2023CVB 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2023CVB 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2023CVB 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2023CVB 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2023CVB 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2023CVB 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2023CVB 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2023CVB 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 32] Visit: 26 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 2022DYT WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 565 S PATTERN 1 1 S (2260 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022DYT WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 565 S PATTERN 1 2 S (2260 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022DYT 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022DYT 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022DYT 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022DYT 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022DYT 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022DYT 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022DYT 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022DYT 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 33] Visit: 27 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 2022FPX WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 576 S PATTERN 1 1 S (2304 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2022FPX WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 576 S PATTERN 1 2 S (2304 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2022FPX 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2022FPX 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2022FPX 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2022FPX 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2022FPX 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2022FPX 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2022FPX 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2022FPX 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 34] Visit: 28 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 2021MHG WFC3/UVI ACCUM UVIS2 F225W FLASH=15 1 565 S PATTERN 1 1 S (2260 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 2021MHG WFC3/UVI ACCUM UVIS2 F625W FLASH=1 1 565 S PATTERN 1 2 S (2260 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2021MHG 1 WFC3/UVI ACCUM UVIS2 F225W 1 none none none 1 N/A S 2021MHG 1 WFC3/UVI ACCUM UVIS2 F225W 2 none none none 1 N/A S 2021MHG 1 WFC3/UVI ACCUM UVIS2 F225W 3 none none none 1 N/A S 2021MHG 1 WFC3/UVI ACCUM UVIS2 F225W 4 none none none 1 N/A S 2021MHG 2 WFC3/UVI ACCUM UVIS2 F625W 1 none none none 2 N/A S 2021MHG 2 WFC3/UVI ACCUM UVIS2 F625W 2 none none none 2 N/A S 2021MHG 2 WFC3/UVI ACCUM UVIS2 F625W 3 none none none 2 N/A S 2021MHG 2 WFC3/UVI ACCUM UVIS2 F625W 4 none none none 2 N/A S 18392( 2) - 17-Aug-2026 15:42:00 - [ 35] Summary Form for Proposal 18392 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=1, FLASH=15 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1, PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F225W, F625W ------------------------------------------------------------------------------------------------------------------------------------ Target Names 2020AFHD, 2020MOT, 2020NEH, 2020OCN, 2020PJ, 2020UKJ, 2020VDQ, 2020ZSO, 2021MHG, 2021SDU, 2021YTE, 2022ADM, 2022ARB, 2022DBL, 2022DYT, 2022FPX, 2022GRI, 2022UPJ, 2023CVB, 2023LLI, 2023MHS, 2023WDB, 2024BGZ, 2024DOO, 2024GXR, 2024PVU, 2024WSD, 2024YQO ------------------------------------------------------------------------------------------------------------------------------------