17726( 5) - 06-Dec-2024 14:24:42 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17726 Version: 5 Check-in Time: 06-Dec-2024 14:24:42 STScI Edit Number: 1 Title Time delay cosmography with strong cluster lenses ------------------------------------------------------------------------------------ Type Cycle GO 32 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Haakon Dahle University of Oslo Y CoI: Prof. Keren Sharon University of Michigan N CoI: Prof. Michael D. Gladders University of Chicago N CoI: Dr. Guillaume Mahler Universite de Liege N CoI: Dr. Matthew Bayliss University of Cincinnati Main Campus N CoI: Dr. Jane R. Rigby NASA Goddard Space Flight Center N CoI: Dr. Kate Napier SLAC National Accelerator Laboratory N CoI: Dr. Michael Florian University of Arizona N CoI: Dr. Taylor Alexandra Hutchison NASA Goddard Space Flight Center N CoI: Dr. Keunho J. Kim California Institute of Technology N CoI: Dr. T. Emil Rivera-Thorsen Stockholm University N CoI: Mr. Aidan Patrick Cloonan University of Massachusetts - Amherst N CoI: Dr. Gourav Khullar University of Washington N CoI: Dr. Brian Welch University of Maryland N CoI: M. Riley Owens University of Cincinnati Main Campus N ------------------------------------------------------------------------------------ Abstract We propose to assemble a complete data set of HST and JWST imaging for the complete known sample of 8 gravitational lens systems where a variable quasar is multiply lensed by a cluster of galaxies. Such lens systems produce image separations and time delays an order of magnitude larger than the much more common galaxy-scale lensed quasars. All these systems are targets of completed or ongoing photometric monitoring programs, allowing us to measure time delays between the lensed quasar images. Time delay values with 1-2% uncertainty have already been measured in half of these lens systems, and preliminary time delays are available for all; similar precision will be reached in the remaining systems within ~2 years. The long time delays, coupled with space-based imaging which provide a large number of additional lensing mass constraints from image families of lensed sources at different redshifts, make these cluster-lensed quasars spectacular targets for determining the Hubble constant H0. The Refsdal method, based on measuring time delays between multiple, strongly gravitationally lensed images of variable sources can provide unique insight into the origin of the intriguing "Hubble tension" between local distance ladder and cosmic microwave background-based determinations of H0. To enable such H0 measurements for the full sample of 8 lensed quasars, we request HST imaging for three systems with no prior space-based data, complemented by JWST imaging at longer wavelengths for the full sample of 8 lenses, as well as modest archival support, to construct precise and accurate models of the lensing mass distribution across the entire sample and derive a joint H0 measurement. ------------------------------------------------------------------------------------ Observations Description ------------------------ 17726( 5) - 06-Dec-2024 14:24:42 - [ 2] UPDATE DECEMBER 6th, 2024: New visits 08 and 09 are added as replacements for failed visits 01 and 02, as awarded by the Telescope Time Review Board on December 2nd, 2024 (HOPR reference: 93011). ---- This program consists of 14 orbits of broad-band imaging, spread over 7 visits, each with 2 orbits per visit. Each visit uses a single filter. Visits 01-06 and 08-09: ACS/WFC imaging. This is programmed as a 2-orbit visit, with a total of 8 frames obtained, dithering along a line with a gap-crossing dither step for each additional frame. For each orbit, the POS TARG option is used to implement an initial offset from the center of ACS/WFC chip 1. The purpose of this offset is to move the center of the strong-lens high-magnification region (which coincides with the provided J2000 target coordinates) somewhat closer to the center of the full WFC field, while also avoiding the part of the chip most affected by CTE effects. This offset is small enough that the region where we expect to find multiple images of gravitationally lensed sources will still be on the same ACS chip as the cluster center for any ORIENT value. Each orbit employs a ACS-WFC-DITHER-BOX pattern to allow for drizzling/sub-sampling and better modelling of the PSF. The two orbits have different POS TARG values, yielding a relative shift between the orbits that ensures that all positions in the chip gap region are covered by at least 6 exposures, ensuring efficient removal of artifacts such as cosmic rays and CTE effects. Visit 07: WFC3/UVIS imaging. This two-orbit visit is dedicated to WFC3-UVIS imaging in the F390W filter. A total of 4 exposures are made across two orbits, emplying a WFC3-UVIS-GAP-LINE dither pattern to ensure that all positions in the inter-chip region is covered by at least 3 exposures. The POS TARG option is used to apply an initial offset of the target away from the center of WFC3/UVIS chip 2 towards the center of the full WFC3/UVIS field. This offset is small enough that the entire sky region where we expect to find multiple images of gravitationally lensed sources will remain on chip2 for any ORIENT value. A Post Flash of 7 e- is applied to mitigate CTE effects. Possible impact of potential reduced gyro operations: We do not require a specific roll angle for these observations. Also, the roll angles for separate visits of the same field need not be the same. This should maximise the schedulability of the observations, even for the case where the observing windows are further limited by reduced gyro mode (the impact of a reduced gyro mode on limiting the spatial scan speed should also not have a significant effect on our fixed target observations). ------------------------------------------------------------------------------------ 17726( 5) - 06-Dec-2024 14:24:42 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ0909+44 CLUSTER OF GALAXIES, RA=09H09M46.3600S, J2000 Z = 0.92 V = 21.6 +/- 0.4 brightest quasar 49 GRAVITATIONAL LENS, DEC=+44D49'48.90" image, g=21.8; r=21.4 (variable) HIGH REDSHIFT CLUSTER, POOR CLUSTER Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ1326+48 CLUSTER OF GALAXIES, RA=13H26M0.0200S, J2000 V = 20.85 +/- 0.5 brightest quasar 06 GRAVITATIONAL LENS, DEC=+48D06'43.60" image, g=20.95; r=20.75 (variable) RICH CLUSTER Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 6 COOLJ0335-19 CLUSTER OF GALAXIES, RA=03H35M4.1997S, J2000 V = 21.5 +/- 0.4 brightest quasar 28 GRAVITATIONAL LENS, DEC=-19D27'54.05" image, g=21.8; r=21.2 (variable) RICH CLUSTER Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 17726( 5) - 06-Dec-2024 14:24:42 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.265 Line_Spacing 5.011 Coordinate_Frame POS-TARG Pattern_Orient 20.7 Angle_Between_Sides 69.02 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-GAP-LINE Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 2.414 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.759 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 17726( 5) - 06-Dec-2024 14:24:42 - [ 5] Visit: 01 (SJ0909_F435W) 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 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F435W 1 492 S POS TARG 0.0, -30.0; 449 (1968 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F435W 1 506 S POS TARG 0.415, -22.055; 449 (2024 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 1 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 2 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 3 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 4 none none none 1 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 1 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 2 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 3 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 6] Visit: 02 (SJ0909_F606W) 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 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F606W 1 492 S POS TARG 0.0, -30.0; 449 (1968 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F606W 1 506 S POS TARG 0.415, -22.055; 449 (2024 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 1 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 2 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 3 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 4 none none none 1 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 1 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 2 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 3 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 7] Visit: 03 (SJ1326_F475W) 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 SDSSJ1326+4 ACS/WFC ACCUM WFC1-FIX F475W 1 495 S POS TARG 0.0, -25.0; 806 (1980 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ1326+4 ACS/WFC ACCUM WFC1-FIX F475W 1 509 S POS TARG 0.415, -17.055; 806 (2036 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F475W 1 none none none 1 N/A SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F475W 2 none none none 1 N/A SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F475W 3 none none none 1 N/A SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F475W 4 none none none 1 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F475W 1 none none none 2 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F475W 2 none none none 2 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F475W 3 none none none 2 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F475W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 8] Visit: 04 (SJ1326_F625W) 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 SDSSJ1326+4 ACS/WFC ACCUM WFC1-FIX F625W 1 495 S POS TARG 0.0, -25.0; 806 (1980 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ1326+4 ACS/WFC ACCUM WFC1-FIX F625W 1 509 S POS TARG 0.415, -17.055; 806 (2036 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F625W 1 none none none 1 N/A SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F625W 2 none none none 1 N/A SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F625W 3 none none none 1 N/A SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-FIX F625W 4 none none none 1 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F625W 1 none none none 2 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F625W 2 none none none 2 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F625W 3 none none none 2 N/A SDSSJ1326+4806 2 ACS/WFC ACCUM WFC1-FIX F625W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 9] Visit: 05 (CJ0335_F475W) 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 COOLJ0335-1 ACS/WFC ACCUM WFC1-FIX F435W 1 479 S POS TARG 0.0, -20.0; 928 (1916 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 COOLJ0335-1 ACS/WFC ACCUM WFC1-FIX F475W 1 494 S POS TARG 0.415, -12.055; 928 (1976 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F435W 1 none none none 1 N/A COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F435W 2 none none none 1 N/A COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F435W 3 none none none 1 N/A COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F435W 4 none none none 1 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F475W 1 none none none 2 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F475W 2 none none none 2 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F475W 3 none none none 2 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F475W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 10] Visit: 06 (CJ0335_F625W) 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 COOLJ0335-1 ACS/WFC ACCUM WFC1-FIX F625W 1 485 S POS TARG 0.0, -20.0; 928 (1940 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 COOLJ0335-1 ACS/WFC ACCUM WFC1-FIX F625W 1 499 S POS TARG 0.415, -12.055; 928 (1996 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F625W 1 none none none 1 N/A COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F625W 2 none none none 1 N/A COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F625W 3 none none none 1 N/A COOLJ0335-1928 1 ACS/WFC ACCUM WFC1-FIX F625W 4 none none none 1 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F625W 1 none none none 2 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F625W 2 none none none 2 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F625W 3 none none none 2 N/A COOLJ0335-1928 2 ACS/WFC ACCUM WFC1-FIX F625W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 11] Visit: 07 (CJ1326_F390W) 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 SDSSJ1326+4 WFC3/UVI ACCUM UVIS2-FIX F390W FLASH=7.0 1 1273 S POS TARG 0.0, 9.0; GS 806 S see below ACQ SCENARIO ONEB1O3; (5216 S) PATTERN 3 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1326+4806 1 WFC3/UVI ACCUM UVIS2-FI F390W 1 none none none 1 1310.0 S S X SDSSJ1326+4806 1 WFC3/UVI ACCUM UVIS2-FI F390W 2 none none none 1 1310.0 S S X SDSSJ1326+4806 1 WFC3/UVI ACCUM UVIS2-FI F390W 3 none none none 2 1298.0 S S X SDSSJ1326+4806 1 WFC3/UVI ACCUM UVIS2-FI F390W 4 none none none 2 1298.0 S S X 17726( 5) - 06-Dec-2024 14:24:42 - [ 12] Visit: 08 (SJ0909_F435W_REPEAT) 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 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F435W 1 492 S POS TARG 0.0, -30.0; 449 (1968 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F435W 1 506 S POS TARG 0.415, -22.055; 449 (2024 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 1 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 2 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 3 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F435W 4 none none none 1 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 1 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 2 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 3 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F435W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 13] Visit: 09 (SJ0909_F606W_REPEAT) 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 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F606W 1 492 S POS TARG 0.0, -30.0; 449 (1968 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ0909+4 ACS/WFC ACCUM WFC1-FIX F606W 1 506 S POS TARG 0.415, -22.055; 449 (2024 S) PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 1 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 2 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 3 none none none 1 N/A SDSSJ0909+4449 1 ACS/WFC ACCUM WFC1-FIX F606W 4 none none none 1 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 1 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 2 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 3 none none none 2 N/A SDSSJ0909+4449 2 ACS/WFC ACCUM WFC1-FIX F606W 4 none none none 2 N/A 17726( 5) - 06-Dec-2024 14:24:42 - [ 14] Summary Form for Proposal 17726 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2-FIX, WFC1-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=7.0 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO ONEB1O3, PATTERN 1 1, PATTERN 1 2, PATTERN 3 1, POS TARG 0.0, -20.0, POS TARG 0.0, -25.0, POS TARG 0.0, -30.0, POS TARG 0.0, 9.0, POS TARG 0.415, -12.055, POS TARG 0.415, -17.055, POS TARG 0.415, -22.055 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F390W, F435W, F475W, F606W, F625W ------------------------------------------------------------------------------------------------------------------------------------ Target Names COOLJ0335-1928, SDSSJ0909+4449, SDSSJ1326+4806 ------------------------------------------------------------------------------------------------------------------------------------