17330( 6) - 13-Feb-2024 14:56:03 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17330 Version: 6 Check-in Time: 13-Feb-2024 14:56:03 STScI Edit Number: 2 Title Deep Imaging of Dimorphos's Dust Tail ------------------------------------------------------------------------------------ Type Cycle GO/DD 30 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Jian-Yang Li Sun Yat-sen University Y CoI: Dr. Andrew F. Cheng The Johns Hopkins University Applied N Physics Laboratory CoI: Dr. Andrew S. Rivkin The Johns Hopkins University Applied N Physics Laboratory CoI: Dr. Cristina A. Thomas Northern Arizona University N CoI: Dr. Eugene G. Fahnestock Jet Propulsion Laboratory N CoI: Dr. Harold A. Weaver The Johns Hopkins University Applied N Physics Laboratory CoI: Dr. Matthew M Knight United States Naval Academy Y CoI: Dr. Steven Chesley Jet Propulsion Laboratory N CoI: Dr. Ludmilla Kolokolova University of Maryland N CoI: Dr. Masatoshi Hirabayashi Auburn University N CoI: Dr. Yun Zhang University of Michigan N CoI: Tony L. Farnham University of Maryland N CoI: Dr. Gonzalo Tancredi Universidad de La Republica Facultad de N Ciencias CoI: Dr. Fernando Moreno Danvila Instituto de Astrofisica de Andalucia N (IAA) CoI: Dr. Bin Yang Planetary Science Institute Y ------------------------------------------------------------------------------------ Abstract We request 10 DD orbits to perform deep imaging of the tail of Dimorphos created by the DART impact in early July before the Didymos system moves into the solar avoidance zone and remains unobservable for ~7 months. The proposed program continues the previous HST programs GO-16674 and GO-17292 to study the formation and evolution of the dust tail formed from the impact ejecta. The proposed observations will allow us to study the evolution of the brightness profile of the tail and the diffuse dust feature to the south of the main tail noticed in February image. Preliminary evidence suggests that the diffuse cloud contains particles lifted by the re-impact of large DART ejecta particles. In the context of the data collected by other post-impact HST programs to observe Didymos, we will constrain the size, size distribution, total mass, and dust dynamics of the ejecta in the binary system, and will explore the mechanisms of delayed dust emission from the binary system. As the first active asteroid with precisely known impact conditions and much better determined physical properties than any other active asteroids, these studies will form the foundation for us to improve our understanding of past and future active asteroid observations, and therefore have broad implications for active asteroid research. The high spatial resolution and sensitivity of HST/WFC3/UVIS are essential for the proposed observations. These observations could not be proposed during the regular Cycle 30 proposal period because we could not have predicted the brightness of teh tail before impact. The tail continues to evolve and fade and so the proposed 17330( 6) - 13-Feb-2024 14:56:03 - [ 2] observations cannot wait until Cycle 31. ------------------------------------------------------------------------------------ Observations Description ------------------------ We plan to observe the tail of Dimorphos in the week between June 30, 2023 and July 6, 2023, right before the Didymos system moves to within the solar avoidance zone. If it's difficult to schedule within this week, we can extend the window to two weeks without affecting the science objectives. The ten orbits do not need to be consecutive, but should be placed as close to each other as possible, e.g., to allow all orbits to be executed within 2 days, to facilitate the stack of all images. All orbits will have the same structure. In each orbit, we will use F350LP filter to take four exposures of 450s each, using the full-frame aperture UVIS2-FIX. The large geocentric distance of 2.5 au of the target allows for the long exposure time without trailing due to parallax. The use of full-frame aperture will allow us to capture the tail as much as possible. In fact, 2k-by-2k subframe will cause more overhead time. The long exposures will hide the buffer dump behind the exposures. The tail of Dimorphos is expected to extend at a position angle about 295 deg during our observing window. The roll angle range of HST during our observing window is 105 - 115 deg, allowing the tail to extend along the diagnal direction of the full-frame CCD field of view. There is no need to impose orientation requirements. We will offset the target in the opposition direction of the tail by 40" to allow for more space for the tail. We will also use a two point dither pattern in each orbit with (1", -2") offset in x and y directions to avoid bad pixels/columns and the chip gap. ------------------------------------------------------------------------------------ 17330( 6) - 13-Feb-2024 14:56:03 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: DIDYMOS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID Binary asteroid (65803) Didymos ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=ASTEROID, A=1.642514363757057, E=0.3832947329867846, I=3.414168800300961 , O=72.99221760945375, W=319.5559920731379, M=38.72558818260499, EQUINOX=J2000, EPOCH=12-JAN-2023:12:00:00, EpochTimeScale=TDB, R0=1. , A1=0., A2=-1.042309691002E-14, A3=0. , ALN=1., NM=2., NN=0., NK=0., AMRAT=0. ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 22.8 +/- 0.1 Ephemeris Center: EARTH Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 17330( 6) - 13-Feb-2024 14:56:03 - [ 4] Visit: 01 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 5] Visit: 02 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 6] Visit: 03 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 7] Visit: 04 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 420 S (420 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 8] Visit: 05 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 9] Visit: 06 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 10] Visit: 07 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 11] Visit: 08 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 12] Visit: 09 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 13] Visit: 10 Visit Requirements: BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00 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 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0; SEQ 1-4 S S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -40, 0 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 DIDYMOS WFC3/UVI ACCUM UVIS2-FIX F350LP 1 450 S (450 POS TARG -41, -2 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 | ------------------------------------------------------------------------------------------------------------------------------------ DIDYMOS 1 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 2 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 3 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X DIDYMOS 4 WFC3/UVI ACCUM UVIS2-FI F350LP none none none none 1 N/A S X 17330( 6) - 13-Feb-2024 14:56:03 - [ 14] Summary Form for Proposal 17330 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 26-JUN-2023:00:00:00 AND 07-JUL-2023:00:00:00, POS TARG -40, 0, POS TARG -41, -2, SEQ 1-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F350LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names DIDYMOS ------------------------------------------------------------------------------------------------------------------------------------