16781( 9) - 04-Nov-2021 19:45:25 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16781 Version: 9 Check-in Time: 04-Nov-2021 19:45:25 STScI Edit Number: 4 Title Re-activation of binary main-belt comet 288P ------------------------------------------------------------------------------------ Type Cycle GO 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Jessica Agarwal Technische Universitaet Braunschweig Y CoI: Dr. Yoonyoung Kim Technische Universitaet Braunschweig N CoI: Dr. David Jewitt University of California - Los Angeles N CoI: Max Mutchler Space Telescope Science Institute Y CoI: Dr. Harold A. Weaver The Johns Hopkins University Applied N Physics Laboratory CoI: Dr. Stephen M. Larson University of Arizona N ------------------------------------------------------------------------------------ Abstract We propose to closely follow the expected re-activation of the unusual binary main-belt comet 288P (300163) in the fall of 2021, to identify the active component(s). This is a crucial parameter to understand the formation and evolution of this system which is unique among the known binary asteroids both because of its comet-like activity and because of its wide, eccentric and asynchronous mutual orbit in combination with similarly sized components. We request a total of 8 orbits. Seven orbits, distributed across one month, will serve to measure the brightness increase due to dust as the system re-approaches perihelion in 2021. In addition, we request 1 orbit in 2021 June to probe for a potential orbit instability. It is currently unclear why no other systems with similar orbital properties as 288P are known. There is a strong detection bias against such systems, and the binary nature of 288P was only identified because of its activity. One the other hand, if activity is needed to form such systems, they may indeed be rare. Our proposed observations will shed light on the frequency of similar systems and on the processes behind binary asteroid formation and evolution. Since the re-activation is expected for the 2021 September-October time frame, we request 4 orbits in Cycle 28 and 4 orbits in Cycle 29. ------------------------------------------------------------------------------------ Observations Description ------------------------ The purpose of the proposed observations is to monitor the re-activitation of the binary main-belt comet 288P that is expected to take place in September/October 2021. We have used 1 orbit of WFC3 imaging in 2021 June to establish the orbital state of the system and verify its predicted binary orbit and rotation state. This will be followed by 3 orbits of WFC3 imaging in 2021 September, and 4 additional orbits in October, that have been allocated for Cycle 29. This phase 2 proposal covers the 4 orbits in Cycle 29. The four orbits should be carried out on Oct-05, 10, 15, and 20, with +/- 1 day flexibility. This timing is crucial to -) catch the expected time interval of re-activation (2021 mid-September to mid-October) -) follow the growth of the dust coma, which is expected to take place on 16781( 9) - 04-Nov-2021 19:45:25 - [ 2] timescales of several days -) catch the system at maximum separation (2021 September) The orbital visibility for a solar system target near the ecliptic plane is 54 min (Section 6.3 of the HST Primer document). In each orbit, we will take 8 exposures of 239s using the C512C subarray of WFC3 and perform a 2-point dither pattern to mitigate hot pixels and cosmic ray hits, obtaining 4 exposures at each dither point. This provides a total exposure time of 1912 s = 32 min. The ephemeris is known with uncertainty <1arcsec, such that there is no risk of missing the target even using the C512C sub-array. We will use the wide bandpass filter F606W for an optimum trade-off between sensitivity and highest resolution, and maximum compatibility with data from earlier epochs. We expect a target brightness of V=22-23 mag, depending on time. The target will be at solar elongations >95deg. ------------------------------------------------------------------------------------ 16781( 9) - 04-Nov-2021 19:45:25 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: 288P ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID binary main-belt comet ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=ASTEROID, A=3.049316706845886, E=0.2011145348983784, I=3.240027217147757 , O=83.18987601023933, W=281.0531996557008, M=359.7694035685469, EQUINOX=J2000, EPOCH=07-NOV-2016:00:00:00, EpochTimeScale=TDB ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 21.9 +/- 0.2 Ephemeris Center: EARTH Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 TARGET NAME: 288P-2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID binary main-belt comet ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=ASTEROID, A=3.048983417833043, E=0.2010721219292816, I=3.240155687537047 , O=83.18714325056506, W=281.0196226634146, M=37.74383008099473, EQUINOX=J2000, EPOCH=31-MAY-2017:00:00:00, EpochTimeScale=TDB ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 21.9 +/- 0.2 Ephemeris Center: EARTH Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 16781( 9) - 04-Nov-2021 19:45:25 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.145 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 16781( 9) - 04-Nov-2021 19:45:25 - [ 5] Visit: 01 (V1) Visit Requirements: BETWEEN 04-OCT-2021:00:50:00 AND 05-OCT-2021:15:30:00; BETWEEN 05-OCT-2021:16:40:00 AND 06-OCT-2021:03:30:00 On Hold Comments: Additional Comments: BETWEENs will be used to avoid times when 288P should not be observed due to the proximity of bright background stars. These need to be updated once the HST orbit for this epoch is known in the JPL/Horizons system. 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 288P WFC3/UVI ACCUM UVIS2-C51 F606W 4 239 S SEQ 1 NON-INT; PATTERN 1 S 2C-SUB (1912 S) 1 Comments: When running the ETC for the actual zodiacal light background at the time of observation, the flash warning disappears (ETC Request ID: WFC3UVIS.im.1526613). ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 4 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 4 none 1 N/A S 12C-SUB 16781( 9) - 04-Nov-2021 19:45:25 - [ 6] Visit: 02 (V2) Visit Requirements: BETWEEN 09-OCT-2021:00:00:00 AND 10-OCT-2021:12:00:00; BETWEEN 10-OCT-2021:13:10:00 AND 11-OCT-2021:05:20:00 On Hold Comments: Additional Comments: BETWEENs will be used to avoid times when 288P should not be observed due to the proximity of bright background stars. These need to be updated once the HST orbit for this epoch is known in the JPL/Horizons system. 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 288P WFC3/UVI ACCUM UVIS2-C51 F606W 4 239 S SEQ 1 NON-INT; PATTERN 1 S 2C-SUB (1912 S) 1 Comments: When running the ETC for the actual zodiacal light background at the time of observation, the flash warning disappears (ETC Request ID: WFC3UVIS.im.1526613). ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 4 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 4 none 1 N/A S 12C-SUB 16781( 9) - 04-Nov-2021 19:45:25 - [ 7] Visit: 03 (V3) Visit Requirements: BETWEEN 13-OCT-2021:16:40:00 AND 14-OCT-2021:16:20:00; BETWEEN 14-OCT-2021:17:30:00 AND 15-OCT-2021:01:40:00; BETWEEN 15-OCT-2021:02:50:00 AND 15-OCT-2021:04:30:00; BETWEEN 15-OCT-2021:05:40:00 AND 16-OCT-2021:09:30:00 On Hold Comments: Additional Comments: BETWEENs will be used to avoid times when 288P should not be observed due to the proximity of bright background stars. These need to be updated once the HST orbit for this epoch is known in the JPL/Horizons system. 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 288P WFC3/UVI ACCUM UVIS2-C51 F606W 4 239 S SEQ 1 NON-INT; PATTERN 1 S 2C-SUB (1912 S) 1 Comments: When running the ETC for the actual zodiacal light background at the time of observation, the flash warning disappears (ETC Request ID: WFC3UVIS.im.1526613). ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 4 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 4 none 1 N/A S 12C-SUB 16781( 9) - 04-Nov-2021 19:45:25 - [ 8] Visit: 04 (V4) Visit Requirements: BETWEEN 19-OCT-2021:09:00:00 AND 21-OCT-2021:01:30:00; BETWEEN 21-OCT-2021:03:00:00 AND 22-OCT-2021:00:00:00 On Hold Comments: Additional Comments: BETWEENs will be used to avoid times when 288P should not be observed due to the proximity of bright background stars. These need to be updated once the HST orbit for this epoch is known in the JPL/Horizons system. 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 288P WFC3/UVI ACCUM UVIS2-C51 F606W 4 239 S SEQ 1 NON-INT; PATTERN 1 S 2C-SUB (1912 S) 1 Comments: When running the ETC for the actual zodiacal light background at the time of observation, the flash warning disappears (ETC Request ID: WFC3UVIS.im.1526613). ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 4 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 1 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 2 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 3 none 1 N/A S 12C-SUB 288P 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 4 none 1 N/A S 12C-SUB 16781( 9) - 04-Nov-2021 19:45:25 - [ 9] Visit: 53 (V3_repeat) 16781( 9) - 04-Nov-2021 19:45:25 - [ 10] Visit Requirements: BETWEEN 01-NOV-2021:04:40:00 AND 01-NOV-2021:15:00:00; BETWEEN 01-NOV-2021:16:30:00 AND 02-NOV-2021:06:10:00; BETWEEN 02-NOV-2021:07:10:00 AND 03-NOV-2021:11:30:00; BETWEEN 03-NOV-2021:12:30:00 AND 04-NOV-2021:04:00:00; BETWEEN 04-NOV-2021:05:10:00 AND 04-NOV-2021:09:40:00; BETWEEN 04-NOV-2021:10:50:00 AND 05-NOV-2021:06:10:00; BETWEEN 05-NOV-2021:07:20:00 AND 05-NOV-2021:14:10:00; BETWEEN 05-NOV-2021:15:20:00 AND 07-NOV-2021:04:20:00; BETWEEN 07-NOV-2021:05:40:00 AND 08-NOV-2021:23:20:00; BETWEEN 09-NOV-2021:00:20:00 AND 10-NOV-2021:20:50:00; BETWEEN 10-NOV-2021:22:00:00 AND 12-NOV-2021:00:00:00; BETWEEN 12-NOV-2021:01:10:00 AND 13-NOV-2021:01:20:00; BETWEEN 13-NOV-2021:02:40:00 AND 14-NOV-2021:04:10:00; BETWEEN 14-NOV-2021:05:20:00 AND 14-NOV-2021:09:10:00; BETWEEN 14-NOV-2021:10:10:00 AND 14-NOV-2021:20:00:00; BETWEEN 14-NOV-2021:21:10:00 AND 15-NOV-2021:13:50:00; BETWEEN 15-NOV-2021:14:50:00 AND 15-NOV-2021:16:00:00; BETWEEN 15-NOV-2021:17:00:00 AND 17-NOV-2021:05:40:00; BETWEEN 17-NOV-2021:06:50:00 AND 17-NOV-2021:14:10:00; BETWEEN 17-NOV-2021:15:20:00 AND 17-NOV-2021:16:50:00; BETWEEN 17-NOV-2021:18:00:00 AND 17-NOV-2021:19:40:00; BETWEEN 17-NOV-2021:20:40:00 AND 17-NOV-2021:23:20:00; BETWEEN 18-NOV-2021:00:30:00 AND 18-NOV-2021:10:50:00; BETWEEN 18-NOV-2021:12:00:00 AND 18-NOV-2021:14:50:00; BETWEEN 18-NOV-2021:15:50:00 AND 18-NOV-2021:20:20:00; BETWEEN 18-NOV-2021:21:30:00 AND 19-NOV-2021:15:30:00; BETWEEN 19-NOV-2021:16:30:00 AND 19-NOV-2021:16:50:00; BETWEEN 19-NOV-2021:18:00:00 AND 19-NOV-2021:18:50:00; BETWEEN 19-NOV-2021:20:00:00 AND 19-NOV-2021:21:00:00; BETWEEN 19-NOV-2021:22:10:00 AND 20-NOV-2021:12:40:00; BETWEEN 20-NOV-2021:13:50:00 AND 21-NOV-2021:02:30:00; BETWEEN 21-NOV-2021:03:30:00 AND 21-NOV-2021:04:20:00; BETWEEN 21-NOV-2021:05:20:00 AND 22-NOV-2021:03:00:00; BETWEEN 22-NOV-2021:04:00:00 AND 22-NOV-2021:04:50:00; BETWEEN 22-NOV-2021:06:00:00 AND 23-NOV-2021:00:20:00; BETWEEN 23-NOV-2021:01:20:00 AND 23-NOV-2021:03:10:00; BETWEEN 23-NOV-2021:04:30:00 AND 23-NOV-2021:06:30:00; BETWEEN 23-NOV-2021:07:40:00 AND 24-NOV-2021:07:20:00; BETWEEN 24-NOV-2021:08:20:00 AND 24-NOV-2021:21:20:00; BETWEEN 24-NOV-2021:22:50:00 AND 25-NOV-2021:05:20:00; BETWEEN 25-NOV-2021:06:20:00 AND 25-NOV-2021:17:50:00; BETWEEN 25-NOV-2021:19:00:00 AND 25-NOV-2021:20:00:00; BETWEEN 25-NOV-2021:21:20:00 AND 26-NOV-2021:02:50:00; BETWEEN 26-NOV-2021:04:00:00 AND 27-NOV-2021:23:20:00; BETWEEN 28-NOV-2021:00:30:00 AND 28-NOV-2021:03:10:00; BETWEEN 28-NOV-2021:04:10:00 AND 29-NOV-2021:09:10:00; BETWEEN 29-NOV-2021:10:10:00 AND 30-NOV-2021:21:00:00; BETWEEN 30-NOV-2021:22:10:00 AND 01-DEC-2021:04:20:00; BETWEEN 01-DEC-2021:05:30:00 AND 01-DEC-2021:23:30:00; BETWEEN 02-DEC-2021:00:30:00 AND 03-DEC-2021:07:50:00; BETWEEN 03-DEC-2021:09:00:00 AND 04-DEC-2021:20:00:00; BETWEEN 04-DEC-2021:21:10:00 AND 05-DEC-2021:04:40:00; BETWEEN 05-DEC-2021:05:40:00 AND 05-DEC-2021:06:20:00; BETWEEN 05-DEC-2021:07:30:00 AND 05-DEC-2021:15:00:00; BETWEEN 05-DEC-2021:16:30:00 AND 05-DEC-2021:21:30:00; BETWEEN 05-DEC-2021:22:40:00 AND 06-DEC-2021:18:40:00; BETWEEN 06-DEC-2021:19:40:00 AND 07-DEC-2021:00:50:00; BETWEEN 07-DEC-2021:02:00:00 AND 07-DEC-2021:10:00:00; BETWEEN 07-DEC-2021:11:10:00 AND 07-DEC-2021:19:20:00; BETWEEN 07-DEC-2021:20:50:00 AND 08-DEC-2021:04:20:00; BETWEEN 08-DEC-2021:05:30:00 AND 10-DEC-2021:11:00:00; BETWEEN 10-DEC-2021:12:00:00 AND 11-DEC-2021:01:10:00; BETWEEN 11-DEC-2021:02:20:00 AND 11-DEC-2021:04:40:00; BETWEEN 11-DEC-2021:05:50:00 AND 11-DEC-2021:15:20:00; BETWEEN 11-DEC-2021:16:30:00 AND 13-DEC-2021:05:30:00; BETWEEN 13-DEC-2021:06:40:00 AND 14-DEC-2021:19:40:00; BETWEEN 14-DEC-2021:20:40:00 AND 15-DEC-2021:00:20:00; BETWEEN 15-DEC-2021:02:00:00 AND 15-DEC-2021:13:00:00; BETWEEN 15-DEC-2021:15:00:00 AND 16-DEC-2021:11:30:00; BETWEEN 16-DEC-2021:12:40:00 AND 17-DEC-2021:12:20:00; BETWEEN 17-DEC-2021:14:00:00 AND 17-DEC-2021:20:30:00; BETWEEN 17-DEC-2021:21:40:00 AND 18-DEC-2021:03:30:00; BETWEEN 18-DEC-2021:04:40:00 AND 18-DEC-2021:06:30:00; BETWEEN 18-DEC-2021:07:40:00 AND 18-DEC-2021:20:10:00; BETWEEN 18-DEC-2021:21:20:00 AND 18-DEC-2021:23:40:00; BETWEEN 19-DEC-2021:00:50:00 AND 19-DEC-2021:09:30:00; BETWEEN 19-DEC-2021:10:40:00 AND 19-DEC-2021:19:20:00; BETWEEN 19-DEC-2021:20:30:00 AND 20-DEC-2021:03:20:00; BETWEEN 20-DEC-2021:04:30:00 AND 20-DEC-2021:15:00:00; BETWEEN 20-DEC-2021:16:10:00 AND 20-DEC-2021:19:00:00; BETWEEN 20-DEC-2021:21:00:00 AND 21-DEC-2021:07:50:00; BETWEEN 21-DEC-2021:08:50:00 AND 21-DEC-2021:14:10:00 16781( 9) - 04-Nov-2021 19:45:25 - [ 11] On Hold Comments: Additional Comments: BETWEENs will be used to avoid times when 288P should not be observed due to the proximity of bright background stars. These need to be updated once the HST orbit for this epoch is known in the JPL/Horizons system. 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 288P-2 WFC3/UVI ACCUM UVIS2-C51 F606W 4 239 S SEQ 1 NON-INT; PATTERN 1 S 2C-SUB (1912 S) 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 | ------------------------------------------------------------------------------------------------------------------------------------ 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 1 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 2 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 3 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 4 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 1 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 2 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 3 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 4 none 1 N/A S 12C-SUB 16781( 9) - 04-Nov-2021 19:45:25 - [ 12] Visit: 54 (V4_repeat) 16781( 9) - 04-Nov-2021 19:45:25 - [ 13] Visit Requirements: BETWEEN 01-NOV-2021:04:40:00 AND 01-NOV-2021:15:00:00; BETWEEN 01-NOV-2021:16:30:00 AND 02-NOV-2021:06:10:00; BETWEEN 02-NOV-2021:07:10:00 AND 03-NOV-2021:11:30:00; BETWEEN 03-NOV-2021:12:30:00 AND 04-NOV-2021:04:00:00; BETWEEN 04-NOV-2021:05:10:00 AND 04-NOV-2021:09:40:00; BETWEEN 04-NOV-2021:10:50:00 AND 05-NOV-2021:06:10:00; BETWEEN 05-NOV-2021:07:20:00 AND 05-NOV-2021:14:10:00; BETWEEN 05-NOV-2021:15:20:00 AND 07-NOV-2021:04:20:00; BETWEEN 07-NOV-2021:05:40:00 AND 08-NOV-2021:23:20:00; BETWEEN 09-NOV-2021:00:20:00 AND 10-NOV-2021:20:50:00; BETWEEN 10-NOV-2021:22:00:00 AND 12-NOV-2021:00:00:00; BETWEEN 12-NOV-2021:01:10:00 AND 13-NOV-2021:01:20:00; BETWEEN 13-NOV-2021:02:40:00 AND 14-NOV-2021:04:10:00; BETWEEN 14-NOV-2021:05:20:00 AND 14-NOV-2021:09:10:00; BETWEEN 14-NOV-2021:10:10:00 AND 14-NOV-2021:20:00:00; BETWEEN 14-NOV-2021:21:10:00 AND 15-NOV-2021:13:50:00; BETWEEN 15-NOV-2021:14:50:00 AND 15-NOV-2021:16:00:00; BETWEEN 15-NOV-2021:17:00:00 AND 17-NOV-2021:05:40:00; BETWEEN 17-NOV-2021:06:50:00 AND 17-NOV-2021:14:10:00; BETWEEN 17-NOV-2021:15:20:00 AND 17-NOV-2021:16:50:00; BETWEEN 17-NOV-2021:18:00:00 AND 17-NOV-2021:19:40:00; BETWEEN 17-NOV-2021:20:40:00 AND 17-NOV-2021:23:20:00; BETWEEN 18-NOV-2021:00:30:00 AND 18-NOV-2021:10:50:00; BETWEEN 18-NOV-2021:12:00:00 AND 18-NOV-2021:14:50:00; BETWEEN 18-NOV-2021:15:50:00 AND 18-NOV-2021:20:20:00; BETWEEN 18-NOV-2021:21:30:00 AND 19-NOV-2021:15:30:00; BETWEEN 19-NOV-2021:16:30:00 AND 19-NOV-2021:16:50:00; BETWEEN 19-NOV-2021:18:00:00 AND 19-NOV-2021:18:50:00; BETWEEN 19-NOV-2021:20:00:00 AND 19-NOV-2021:21:00:00; BETWEEN 19-NOV-2021:22:10:00 AND 20-NOV-2021:12:40:00; BETWEEN 20-NOV-2021:13:50:00 AND 21-NOV-2021:02:30:00; BETWEEN 21-NOV-2021:03:30:00 AND 21-NOV-2021:04:20:00; BETWEEN 21-NOV-2021:05:20:00 AND 22-NOV-2021:03:00:00; BETWEEN 22-NOV-2021:04:00:00 AND 22-NOV-2021:04:50:00; BETWEEN 22-NOV-2021:06:00:00 AND 23-NOV-2021:00:20:00; BETWEEN 23-NOV-2021:01:20:00 AND 23-NOV-2021:03:10:00; BETWEEN 23-NOV-2021:04:30:00 AND 23-NOV-2021:06:30:00; BETWEEN 23-NOV-2021:07:40:00 AND 24-NOV-2021:07:20:00; BETWEEN 24-NOV-2021:08:20:00 AND 24-NOV-2021:21:20:00; BETWEEN 24-NOV-2021:22:50:00 AND 25-NOV-2021:05:20:00; BETWEEN 25-NOV-2021:06:20:00 AND 25-NOV-2021:17:50:00; BETWEEN 25-NOV-2021:19:00:00 AND 25-NOV-2021:20:00:00; BETWEEN 25-NOV-2021:21:20:00 AND 26-NOV-2021:02:50:00; BETWEEN 26-NOV-2021:04:00:00 AND 27-NOV-2021:23:20:00; BETWEEN 28-NOV-2021:00:30:00 AND 28-NOV-2021:03:10:00; BETWEEN 28-NOV-2021:04:10:00 AND 29-NOV-2021:09:10:00; BETWEEN 29-NOV-2021:10:10:00 AND 30-NOV-2021:21:00:00; BETWEEN 30-NOV-2021:22:10:00 AND 01-DEC-2021:04:20:00; BETWEEN 01-DEC-2021:05:30:00 AND 01-DEC-2021:23:30:00; BETWEEN 02-DEC-2021:00:30:00 AND 03-DEC-2021:07:50:00; BETWEEN 03-DEC-2021:09:00:00 AND 04-DEC-2021:20:00:00; BETWEEN 04-DEC-2021:21:10:00 AND 05-DEC-2021:04:40:00; BETWEEN 05-DEC-2021:05:40:00 AND 05-DEC-2021:06:20:00; BETWEEN 05-DEC-2021:07:30:00 AND 05-DEC-2021:15:00:00; BETWEEN 05-DEC-2021:16:30:00 AND 05-DEC-2021:21:30:00; BETWEEN 05-DEC-2021:22:40:00 AND 06-DEC-2021:18:40:00; BETWEEN 06-DEC-2021:19:40:00 AND 07-DEC-2021:00:50:00; BETWEEN 07-DEC-2021:02:00:00 AND 07-DEC-2021:10:00:00; BETWEEN 07-DEC-2021:11:10:00 AND 07-DEC-2021:19:20:00; BETWEEN 07-DEC-2021:20:50:00 AND 08-DEC-2021:04:20:00; BETWEEN 08-DEC-2021:05:30:00 AND 10-DEC-2021:11:00:00; BETWEEN 10-DEC-2021:12:00:00 AND 11-DEC-2021:01:10:00; BETWEEN 11-DEC-2021:02:20:00 AND 11-DEC-2021:04:40:00; BETWEEN 11-DEC-2021:05:50:00 AND 11-DEC-2021:15:20:00; BETWEEN 11-DEC-2021:16:30:00 AND 13-DEC-2021:05:30:00; BETWEEN 13-DEC-2021:06:40:00 AND 14-DEC-2021:19:40:00; BETWEEN 14-DEC-2021:20:40:00 AND 15-DEC-2021:00:20:00; BETWEEN 15-DEC-2021:02:00:00 AND 15-DEC-2021:13:00:00; BETWEEN 15-DEC-2021:15:00:00 AND 16-DEC-2021:11:30:00; BETWEEN 16-DEC-2021:12:40:00 AND 17-DEC-2021:12:20:00; BETWEEN 17-DEC-2021:14:00:00 AND 17-DEC-2021:20:30:00; BETWEEN 17-DEC-2021:21:40:00 AND 18-DEC-2021:03:30:00; BETWEEN 18-DEC-2021:04:40:00 AND 18-DEC-2021:06:30:00; BETWEEN 18-DEC-2021:07:40:00 AND 18-DEC-2021:20:10:00; BETWEEN 18-DEC-2021:21:20:00 AND 18-DEC-2021:23:40:00; BETWEEN 19-DEC-2021:00:50:00 AND 19-DEC-2021:09:30:00; BETWEEN 19-DEC-2021:10:40:00 AND 19-DEC-2021:19:20:00; BETWEEN 19-DEC-2021:20:30:00 AND 20-DEC-2021:03:20:00; BETWEEN 20-DEC-2021:04:30:00 AND 20-DEC-2021:15:00:00; BETWEEN 20-DEC-2021:16:10:00 AND 20-DEC-2021:19:00:00; BETWEEN 20-DEC-2021:21:00:00 AND 21-DEC-2021:07:50:00; BETWEEN 21-DEC-2021:08:50:00 AND 21-DEC-2021:14:10:00 16781( 9) - 04-Nov-2021 19:45:25 - [ 14] On Hold Comments: Additional Comments: BETWEENs will be used to avoid times when 288P should not be observed due to the proximity of bright background stars. These need to be updated once the HST orbit for this epoch is known in the JPL/Horizons system. 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 288P-2 WFC3/UVI ACCUM UVIS2-C51 F606W 4 239 S SEQ 1 NON-INT; PATTERN 1 S 2C-SUB (1912 S) 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 | ------------------------------------------------------------------------------------------------------------------------------------ 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 1 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 2 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 3 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 1 none 4 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 1 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 2 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 3 none 1 N/A S 12C-SUB 288P-2 1 WFC3/UVI ACCUM UVIS2-C5 F606W 2 none 4 none 1 N/A S 12C-SUB 16781( 9) - 04-Nov-2021 19:45:25 - [ 15] Summary Form for Proposal 16781 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2-C512C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ 16781( 9) - 04-Nov-2021 19:45:25 - [ 16] Special Requirements BETWEEN 01-DEC-2021:05:30:00 AND 01-DEC-2021:23:30:00, BETWEEN 01-NOV-2021:04:40:00 AND 01-NOV-2021:15:00:00, BETWEEN 01-NOV-2021:16:30:00 AND 02-NOV-2021:06:10:00, BETWEEN 02-DEC-2021:00:30:00 AND 03-DEC-2021:07:50:00, BETWEEN 02-NOV-2021:07:10:00 AND 03-NOV-2021:11:30:00, BETWEEN 03-DEC-2021:09:00:00 AND 04-DEC-2021:20:00:00, BETWEEN 03-NOV-2021:12:30:00 AND 04-NOV-2021:04:00:00, BETWEEN 04-DEC-2021:21:10:00 AND 05-DEC-2021:04:40:00, BETWEEN 04-NOV-2021:05:10:00 AND 04-NOV-2021:09:40:00, BETWEEN 04-NOV-2021:10:50:00 AND 05-NOV-2021:06:10:00, BETWEEN 04-OCT-2021:00:50:00 AND 05-OCT-2021:15:30:00, BETWEEN 05-DEC-2021:05:40:00 AND 05-DEC-2021:06:20:00, BETWEEN 05-DEC-2021:07:30:00 AND 05-DEC-2021:15:00:00, BETWEEN 05-DEC-2021:16:30:00 AND 05-DEC-2021:21:30:00, BETWEEN 05-DEC-2021:22:40:00 AND 06-DEC-2021:18:40:00, BETWEEN 05-NOV-2021:07:20:00 AND 05-NOV-2021:14:10:00, BETWEEN 05-NOV-2021:15:20:00 AND 07-NOV-2021:04:20:00, BETWEEN 05-OCT-2021:16:40:00 AND 06-OCT-2021:03:30:00, BETWEEN 06-DEC-2021:19:40:00 AND 07-DEC-2021:00:50:00, BETWEEN 07-DEC-2021:02:00:00 AND 07-DEC-2021:10:00:00, BETWEEN 07-DEC-2021:11:10:00 AND 07-DEC-2021:19:20:00, BETWEEN 07-DEC-2021:20:50:00 AND 08-DEC-2021:04:20:00, BETWEEN 07-NOV-2021:05:40:00 AND 08-NOV-2021:23:20:00, BETWEEN 08-DEC-2021:05:30:00 AND 10-DEC-2021:11:00:00, BETWEEN 09-NOV-2021:00:20:00 AND 10-NOV-2021:20:50:00, BETWEEN 09-OCT-2021:00:00:00 AND 10-OCT-2021:12:00:00, BETWEEN 10-DEC-2021:12:00:00 AND 11-DEC-2021:01:10:00, BETWEEN 10-NOV-2021:22:00:00 AND 12-NOV-2021:00:00:00, BETWEEN 10-OCT-2021:13:10:00 AND 11-OCT-2021:05:20:00, BETWEEN 11-DEC-2021:02:20:00 AND 11-DEC-2021:04:40:00, BETWEEN 11-DEC-2021:05:50:00 AND 11-DEC-2021:15:20:00, BETWEEN 11-DEC-2021:16:30:00 AND 13-DEC-2021:05:30:00, BETWEEN 12-NOV-2021:01:10:00 AND 13-NOV-2021:01:20:00, BETWEEN 13-DEC-2021:06:40:00 AND 14-DEC-2021:19:40:00, BETWEEN 13-NOV-2021:02:40:00 AND 14-NOV-2021:04:10:00, BETWEEN 13-OCT-2021:16:40:00 AND 14-OCT-2021:16:20:00, BETWEEN 14-DEC-2021:20:40:00 AND 15-DEC-2021:00:20:00, BETWEEN 14-NOV-2021:05:20:00 AND 14-NOV-2021:09:10:00, BETWEEN 14-NOV-2021:10:10:00 AND 14-NOV-2021:20:00:00, BETWEEN 14-NOV-2021:21:10:00 AND 15-NOV-2021:13:50:00, BETWEEN 14-OCT-2021:17:30:00 AND 15-OCT-2021:01:40:00, BETWEEN 15-DEC-2021:02:00:00 AND 15-DEC-2021:13:00:00, BETWEEN 15-DEC-2021:15:00:00 AND 16-DEC-2021:11:30:00, BETWEEN 15-NOV-2021:14:50:00 AND 15-NOV-2021:16:00:00, BETWEEN 15-NOV-2021:17:00:00 AND 17-NOV-2021:05:40:00, BETWEEN 15-OCT-2021:02:50:00 AND 15-OCT-2021:04:30:00, BETWEEN 15-OCT-2021:05:40:00 AND 16-OCT-2021:09:30:00, BETWEEN 16-DEC-2021:12:40:00 AND 17-DEC-2021:12:20:00, BETWEEN 17-DEC-2021:14:00:00 AND 17-DEC-2021:20:30:00, BETWEEN 17-DEC-2021:21:40:00 AND 18-DEC-2021:03:30:00, BETWEEN 17-NOV-2021:06:50:00 AND 17-NOV-2021:14:10:00, BETWEEN 17-NOV-2021:15:20:00 AND 17-NOV-2021:16:50:00, BETWEEN 17-NOV-2021:18:00:00 AND 17-NOV-2021:19:40:00, BETWEEN 17-NOV-2021:20:40:00 AND 17-NOV-2021:23:20:00, BETWEEN 18-DEC-2021:04:40:00 AND 18-DEC-2021:06:30:00, BETWEEN 18-DEC-2021:07:40:00 AND 18-DEC-2021:20:10:00, BETWEEN 18-DEC-2021:21:20:00 AND 18-DEC-2021:23:40:00, BETWEEN 18-NOV-2021:00:30:00 AND 18-NOV-2021:10:50:00, BETWEEN 18-NOV-2021:12:00:00 AND 18-NOV-2021:14:50:00, BETWEEN 18-NOV-2021:15:50:00 AND 18-NOV-2021:20:20:00, BETWEEN 18-NOV-2021:21:30:00 AND 19-NOV-2021:15:30:00, BETWEEN 19-DEC-2021:00:50:00 AND 19-DEC-2021:09:30:00, BETWEEN 19-DEC-2021:10:40:00 AND 19-DEC-2021:19:20:00, BETWEEN 19-DEC-2021:20:30:00 AND 20-DEC-2021:03:20:00, BETWEEN 19-NOV-2021:16:30:00 AND 19-NOV-2021:16:50:00, BETWEEN 19-NOV-2021:18:00:00 AND 19-NOV-2021:18:50:00, BETWEEN 19-NOV-2021:20:00:00 AND 19-NOV-2021:21:00:00, BETWEEN 19-NOV-2021:22:10:00 AND 20-NOV-2021:12:40:00, BETWEEN 19-OCT-2021:09:00:00 AND 21-OCT-2021:01:30:00, BETWEEN 20-DEC-2021:04:30:00 AND 20-DEC-2021:15:00:00, BETWEEN 20-DEC-2021:16:10:00 AND 20-DEC-2021:19:00:00, BETWEEN 20-DEC-2021:21:00:00 AND 21-DEC-2021:07:50:00, BETWEEN 20-NOV-2021:13:50:00 AND 21-NOV-2021:02:30:00, BETWEEN 21-DEC-2021:08:50:00 AND 21-DEC-2021:14:10:00, BETWEEN 21-NOV-2021:03:30:00 AND 21-NOV-2021:04:20:00, BETWEEN 21-NOV-2021:05:20:00 AND 22-NOV-2021:03:00:00, BETWEEN 21-OCT-2021:03:00:00 AND 22-OCT-2021:00:00:00, BETWEEN 22-NOV-2021:04:00:00 AND 22-NOV-2021:04:50:00, BETWEEN 22-NOV-2021:06:00:00 AND 23-NOV-2021:00:20:00, BETWEEN 23-NOV-2021:01:20:00 AND 23-NOV-2021:03:10:00, BETWEEN 23-NOV-2021:04:30:00 AND 23-NOV-2021:06:30:00, BETWEEN 23-NOV-2021:07:40:00 AND 24-NOV-2021:07:20:00, BETWEEN 24-NOV-2021:08:20:00 AND 24-NOV-2021:21:20:00, BETWEEN 24-NOV-2021:22:50:00 AND 25-NOV-2021:05:20:00, BETWEEN 25-NOV-2021:06:20:00 AND 25-NOV-2021:17:50:00, BETWEEN 25-NOV-2021:19:00:00 AND 25-NOV-2021:20:00:00, BETWEEN 25-NOV-2021:21:20:00 AND 26-NOV-2021:02:50:00, BETWEEN 26-NOV-2021:04:00:00 AND 27-NOV-2021:23:20:00, BETWEEN 28-NOV-2021:00:30:00 AND 28-NOV-2021:03:10:00, BETWEEN 28-NOV-2021:04:10:00 AND 29-NOV-2021:09:10:00, BETWEEN 29-NOV-2021:10:10:00 AND 30-NOV-2021:21:00:00, BETWEEN 30-NOV-2021:22:10:00 AND 01-DEC-2021:04:20:00, PATTERN 1 1, SEQ 1 NON-INT 16781( 9) - 04-Nov-2021 19:45:25 - [ 17] ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W ------------------------------------------------------------------------------------------------------------------------------------ Target Names 288P, 288P-2 ------------------------------------------------------------------------------------------------------------------------------------