17759( 6) - 27-Mar-2025 18:56:29 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17759 Version: 6 Check-in Time: 27-Mar-2025 18:56:29 STScI Edit Number: 0 Title Discovery of Extremely Faint Galaxy Candidates out to the Edge of the Local Group ------------------------------------------------------------------------------------ Type Cycle GO 32 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Kristen B W McQuinn Space Telescope Science Institute Y CoI: Dr. Yao-Yuan Mao University of Utah N CoI: Prof. Matthew Buckley Rutgers the State University of New Jersey N CoI: Prof. David Shih Rutgers the State University of New Jersey N CoI: Dr. Andrew Eugene Dolphin Raytheon Company N CoI: Dr. Roger Cohen Rutgers the State University of New Jersey N CoI: Dr. Erik Tollerud Space Telescope Science Institute N CoI: Tehreem Hai Rutgers the State University of New Jersey N CoI: Cody Leishman University of Utah N CoI: Kate Anderson University of Utah N ------------------------------------------------------------------------------------ Abstract The smallest galaxies in the universe play an important role in understanding structure formation at all scales. They inform us about the the build-up of more massive galaxies, test our understanding of the coupling of baryon and dark matter physics, and can place critical constraints on our understanding of the epoch of reionization. Yet, because of their paltry stellar content, these systems are incredibly faint and difficult to find. To date, nearly all ultra-faint dwarfs that have been detected are in close proximity to the Milky Way (making them easier to find) or are satellites of another massive galaxy (where searches can be targeted). This has limited our understanding of ultra-faint dwarfs to a single type of environment, which rarely turns out to be representative. We have discovered 6 ultra-faint dwarf candidates within the Local Group that appear to lie at distances from the MW and M31 that are beyond the virial radius, the traditional definition of "satellite" (i.e., > 400 kpc). If confirmed, these systems will provide unique insights into the growth and evolution of ultra-faint dwarfs that reside in relatively isolated environments and that are not satellites. We request 1-orbit of HST imaging per candidate to confirm and characterize these systems. The data will enable robust measurements of distances, structural parameters, integrated magnitudes, and star formation histories. ------------------------------------------------------------------------------------ Observations Description ------------------------ The observations included ACS/WFC and WFC3/UVIS imaging in the F606W and F814W filters. The data will be used to confirm that the targets are galaxies, measure the distances to the systems from resolved stars (TRGB and/or Horizontal Branch methods), characterize the stellar properites (star formation histories and metallicities), and measure the structural parameters of the galaxies. The parallel pointings will allow us to observe a field region next to our targets. We will thus be able to estimate more precisely the number of 17759( 6) - 27-Mar-2025 18:56:29 - [ 2] background/foreground contaminants present in our ACS fields. Each of the 6 targets will be observed for 1 orbit. We use a 5x5 pixel dither implemented using pos-targ (equivalent to the ACS WFC DITHER LINE pattern #14) to reject cosmic rays and handle hot pixels. The first pointing is executed with both filters in ACS and with both filters in WFC3 parallel fields. After the dither, the observations are then repeated. The exposure time per orbit is split roughly equally between the F606W and F814W filters. In order to obtain 4 exposures in both ACS and WFC3 in one orbit and accomodate buffer dumps during exposures, we have added a special requirement to the visibility intervals, which was requested as part of the Phase I proposal. Each visit is 1-orbit. We have place ORIENT constraints to ensure we maximum coverage of the stellar disk and prevent the galaxy centers from falling in the ACS chip gap, while avoiding nearby bright stars. ------------------------------------------------------------------------------------ 17759( 6) - 27-Mar-2025 18:56:29 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 ANDROMEDA-H GALAXY, DWARF RA=00H40M31.2940S, J2000 V = 17 SPHEROIDAL DEC=+22D03'54.05" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 ERIDANUS-T GALAXY, DWARF RA=02H58M37.0819S, J2000 V = 17 SPHEROIDAL DEC=-03D15'21.66" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 COMA-BERENIC GALAXY, DWARF RA=12H32M39.3168S, J2000 V = 17 ES-S SPHEROIDAL DEC=+25D31'14.06" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 4 AQUARIUS-Y GALAXY, DWARF RA=22H01M48.5825S, J2000 V = 17 SPHEROIDAL DEC=-02D34'49.34" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 5 COMA-BERENIC GALAXY, DWARF RA=12H26M49.3175S, J2000 V = 17 ES-M SPHEROIDAL DEC=+18D43'15.13" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 6 CANES-VENATI GALAXY, DWARF RA=14H02M28.4854S, J2000 V = 17 CI-K SPHEROIDAL DEC=+31D15'4.96" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 17759( 6) - 27-Mar-2025 18:56:29 - [ 4] Visit: 01 (ANDROMEDA-H) Visit Requirements: ORIENT 230D TO 265 D; VISIBILITY INTERVAL 3128 S 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 ANDROMEDA-H ACS/WFC ACCUM WFC F606W FLASH=10 1 224 S (224 PAR 2 WITH 1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY WFC3/UVI ACCUM UVIS F606W FLASH=9 1 283 S (283 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ANDROMEDA-H ACS/WFC ACCUM WFC F814W 1 670 S (670 PAR 4 WITH 3 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY WFC3/UVI ACCUM UVIS F814W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 ANDROMEDA-H ACS/WFC ACCUM WFC F606W 1 670 S (670 POS TARG 0.247, 0.267; S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY WFC3/UVI ACCUM UVIS F606W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 7 ANDROMEDA-H ACS/WFC ACCUM WFC F814W FLASH=7 1 337 S (337 SAME POS AS 5; PAR 8 S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS F814W FLASH=11 1 410 S (410 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ ANDROMEDA-H 1 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S ANDROMEDA-H 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S ANDROMEDA-H 5 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 6 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S ANDROMEDA-H 7 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 8 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S 17759( 6) - 27-Mar-2025 18:56:29 - [ 5] Visit: 02 (ERIDANUS-T) Visit Requirements: ORIENT 33D TO 36 D; VISIBILITY INTERVAL 3117 S 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 ERIDANUS-T ACS/WFC ACCUM WFC F606W FLASH=10 1 180 S (180 PAR 2 WITH 1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY WFC3/UVI ACCUM UVIS F606W FLASH=9 1 239 S (239 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 ERIDANUS-T ACS/WFC ACCUM WFC F814W 1 660 S (660 PAR 4 WITH 3 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY WFC3/UVI ACCUM UVIS F814W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 ERIDANUS-T ACS/WFC ACCUM WFC F606W 1 660 S (660 POS TARG 0.247, 0.267; S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY WFC3/UVI ACCUM UVIS F606W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 7 ERIDANUS-T ACS/WFC ACCUM WFC F814W FLASH=7 1 337 S (337 SAME POS AS 5; PAR 8 S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS F814W FLASH=11 1 410 S (410 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ ERIDANUS-T 1 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S ERIDANUS-T 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S ERIDANUS-T 5 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 6 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S ERIDANUS-T 7 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 8 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S 17759( 6) - 27-Mar-2025 18:56:29 - [ 6] Visit: 03 (COMA-BERENICES-S) Visit Requirements: ORIENT 248D TO 256 D; VISIBILITY INTERVAL 3117 S 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 COMA-BERENI ACS/WFC ACCUM WFC F606W FLASH=8 1 210 S (210 PAR 2 WITH 1 CES-S S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY WFC3/UVI ACCUM UVIS F606W FLASH=9 1 254 S (254 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 COMA-BERENI ACS/WFC ACCUM WFC F814W 1 660 S (660 PAR 4 WITH 3 CES-S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY WFC3/UVI ACCUM UVIS F814W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 COMA-BERENI ACS/WFC ACCUM WFC F606W 1 660 S (660 POS TARG 0.247, 0.267; CES-S S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY WFC3/UVI ACCUM UVIS F606W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 7 COMA-BERENI ACS/WFC ACCUM WFC F814W FLASH=7 1 337 S (337 SAME POS AS 5; PAR 8 CES-S S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS F814W FLASH=11 1 410 S (410 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ COMA-BERENICES-S 1 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S COMA-BERENICES-S 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S COMA-BERENICES-S 5 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 6 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S COMA-BERENICES-S 7 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 8 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S 17759( 6) - 27-Mar-2025 18:56:29 - [ 7] Visit: 04 (AQUARIUS-Y) Visit Requirements: ORIENT 220D TO 260 D; VISIBILITY INTERVAL 3117 S 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 AQUARIUS-Y ACS/WFC ACCUM WFC F606W FLASH=11 1 180 S (180 PAR 2 WITH 1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY WFC3/UVI ACCUM UVIS F606W FLASH=9 1 239 S (239 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 AQUARIUS-Y ACS/WFC ACCUM WFC F814W 1 660 S (660 PAR 4 WITH 3 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY WFC3/UVI ACCUM UVIS F814W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 AQUARIUS-Y ACS/WFC ACCUM WFC F606W 1 660 S (660 POS TARG 0.247, 0.267; S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY WFC3/UVI ACCUM UVIS F606W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 7 AQUARIUS-Y ACS/WFC ACCUM WFC F814W FLASH=7 1 337 S (337 SAME POS AS 5; PAR 8 S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS F814W FLASH=11 1 410 S (410 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ AQUARIUS-Y 1 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S AQUARIUS-Y 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S AQUARIUS-Y 5 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 6 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S AQUARIUS-Y 7 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 8 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S 17759( 6) - 27-Mar-2025 18:56:29 - [ 8] Visit: 05 (COMA-BERENICES-M) Visit Requirements: ORIENT 250D TO 302 D; VISIBILITY INTERVAL 3191 S 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 COMA-BERENI ACS/WFC ACCUM WFC F606W FLASH=8 1 254 S (254 PAR 2 WITH 1 CES-M S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY WFC3/UVI ACCUM UVIS F606W FLASH=9 1 290 S (290 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 COMA-BERENI ACS/WFC ACCUM WFC F814W 1 670 S (670 PAR 4 WITH 3 CES-M S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY WFC3/UVI ACCUM UVIS F814W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 COMA-BERENI ACS/WFC ACCUM WFC F606W 1 670 S (670 POS TARG 0.247, 0.267; CES-M S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY WFC3/UVI ACCUM UVIS F606W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 7 COMA-BERENI ACS/WFC ACCUM WFC F814W FLASH=4 1 370 S (370 SAME POS AS 5; PAR 8 CES-M S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS F814W FLASH=11 1 410 S (410 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ COMA-BERENICES-M 1 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S COMA-BERENICES-M 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S COMA-BERENICES-M 5 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 6 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S COMA-BERENICES-M 7 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 8 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S 17759( 6) - 27-Mar-2025 18:56:29 - [ 9] Visit: 06 (CANES-VENATICI-K) Visit Requirements: ORIENT 297D TO 304 D; VISIBILITY INTERVAL 3176 S 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 CANES-VENAT ACS/WFC ACCUM WFC F606W FLASH=9 1 242 S (242 PAR 2 WITH 1 ICI-K S) ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY WFC3/UVI ACCUM UVIS F606W FLASH=9 1 296 S (296 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 CANES-VENAT ACS/WFC ACCUM WFC F814W 1 670 S (670 PAR 4 WITH 3 ICI-K S) ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY WFC3/UVI ACCUM UVIS F814W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 CANES-VENAT ACS/WFC ACCUM WFC F606W 1 670 S (670 POS TARG 0.247, 0.267; ICI-K S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY WFC3/UVI ACCUM UVIS F606W 1 730 S (730 S S) ------------------------------------------------------------------------------------------------------------------------------------ 7 CANES-VENAT ACS/WFC ACCUM WFC F814W FLASH=4 1 367 S (367 SAME POS AS 5; PAR 8 ICI-K S) WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS F814W FLASH=11 1 410 S (410 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ CANES-VENATICI-K 1 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S CANES-VENATICI-K 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S CANES-VENATICI-K 5 ACS/WFC ACCUM WFC F606W none none none none 1 N/A ANY 6 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S CANES-VENATICI-K 7 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 8 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S 17759( 6) - 27-Mar-2025 18:56:29 - [ 10] Summary Form for Proposal 17759 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS, WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=10, FLASH=11, FLASH=4, FLASH=7, FLASH=8, FLASH=9 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 220D TO 260 D, ORIENT 230D TO 265 D, ORIENT 248D TO 256 D, ORIENT 250D TO 302 D, ORIENT 297D TO 304 D, ORIENT 33D TO 36 D, PAR 2 WITH 1, PAR 4 WITH 3, PAR 6 WITH 5, PAR 8 WITH 7, POS TARG 0.247, 0.267, SAME POS AS 5, VISIBILITY INTERVAL 3117 S, VISIBILITY INTERVAL 3128 S, VISIBILITY INTERVAL 3176 S, VISIBILITY INTERVAL 3191 S ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names ANDROMEDA-H, ANY, AQUARIUS-Y, CANES-VENATICI-K, COMA-BERENICES-M, COMA-BERENICES-S, ERIDANUS-T ------------------------------------------------------------------------------------------------------------------------------------