13612( 5) - 20-Nov-2013 16:00:03 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13612 Version: 5 Check-in Time: 20-Nov-2013 16:00:03 STScI Edit Number: 0 Title Hubble Investigation of the First Known, Multi-Fragment Main Belt Comet: P/2013 R3 ------------------------------------------------------------------------------------ Type Cycle GO/DD 21 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. David Jewitt University of California - Los Angeles N CoI: Dr. Harold A. Weaver The Johns Hopkins University Applied Y Physics Laboratory CoI: Dr. Jessica Agarwal Max Planck Institute for Solar System N Research CoI: Dr. Stephen M. Larson University of Arizona N CoI: Mr. Max Mutchler Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract Comet-like object P/2013 R3, announced on 2013 Sept 27, is the latest of the newly discovered class of active asteroids (equivalently main-belt comets, MBCs). Observations with the Keck 10-m telescope on Oct 01 and 02 reveal that P/2013 R3 is a multiple object, with three co-moving components resolved at 1.0 arcsec resolution. Multiplicity has never before been seen in the MBCs and offers the opportunity to study internal dynamics in detail. We request five orbits of DD time to explore P/2013 R3 at resolutions and sensitivities only possible with Hubble, to search for fainter fragments and to determine the dynamics of the components. P/2013 R3 is a leading candidate for a body breaking up under rotational stresses (presumably induced by YORP radiation forces), and Hubble data will test this hypothesis by pin-pointing the dates of ejection of the fragments, their speeds, and their directions. Our Hubble MBC program has been remarkably successful in probing the activation triggers for this new class of objects, and our proposed program on P/2013 R3 will provide the first opportunity to track fragments associated with the activation event. ------------------------------------------------------------------------------------ Observations Description ------------------------ TBD Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 13612( 5) - 20-Nov-2013 16:00:03 - [ 2] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: P2013R3-EPOCH1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET MBC-P2013R3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.204180285977825, E=0.2731088336618457, I=0.8991777757766721, O=342.6902297221328, W=8.35570687519, T=05-AUG-2013:12:02:32, TTimeScale=TDT, EQUINOX=J2000, EPOCH=26-SEP-2013, EpochTimeScale=TDT ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 20 JPL #2 solution Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 TARGET NAME: P2013R3-EPOCH2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET MBC-P2013R3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.202047382056731, E=0.2736476725132956, I=0.8978056165201912, O=342.6619734463128, W=8.222080560884772, T=05-AUG-2013:02:41:35, TTimeScale=TDT, EQUINOX=J2000, EPOCH=26-SEP-2013, EpochTimeScale=TDT ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 20 JPL #4 solution Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 13612( 5) - 20-Nov-2013 16:00:03 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 TARGET NAME: P2013R3-EPOCH3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET MBC-P2013R3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.203592442866704, E=0.2734796901495439, I=0.8990305933678789, O=342.6873033223817, W=8.205805962554951, T=05-AUG-2013:01:43:58, TTimeScale=TDT, EQUINOX=J2000, EPOCH=08-OCT-2013, EpochTimeScale=TDT ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 20 JPL #8 solution Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 4 TARGET NAME: P2013R3-EPOCH4 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET MBC-P2013R3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.203592442866704, E=0.2734796901495439, I=0.8990305933678789, O=342.6873033223817, W=8.205805962554951, T=05-AUG-2013:01:43:58, TTimeScale=TDT, EQUINOX=J2000, EPOCH=08-OCT-2013, EpochTimeScale=TDT ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 20 JPL #8 solution Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 13612( 5) - 20-Nov-2013 16:00:03 - [ 4] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 5 TARGET NAME: P2013R3-EPOCH5 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET MBC-P2013R3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.203592442866704, E=0.2734796901495439, I=0.8990305933678789, O=342.6873033223817, W=8.205805962554951, T=05-AUG-2013:01:43:58, TTimeScale=TDT, EQUINOX=J2000, EPOCH=08-OCT-2013, EpochTimeScale=TDT ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 20 JPL #8 solution Ephemeris Center: EARTH ------------------------------------------------------------------------------------------------------------------------------------ 13612( 5) - 20-Nov-2013 16:00:03 - [ 5] Visit: 01 Visit Requirements: BETWEEN 11-OCT-2013 AND 04-NOV-2013; VISIBILITY INTERVAL 52.5 M 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 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH1 S S) ------------------------------------------------------------------------------------------------------------------------------------ 2 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH1 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH1 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH1 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH1 S S) ------------------------------------------------------------------------------------------------------------------------------------ 6 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 233 S (233 POS TARG 0.2, 2.41 CH1 S S) Comments: Please adjust to match observability window ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2013R3-EPOCH1 1 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH1 2 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH1 3 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH1 4 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH1 5 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH1 6 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S 13612( 5) - 20-Nov-2013 16:00:03 - [ 6] Visit: 02 Visit Requirements: BETWEEN 13-NOV-2013 AND 27-NOV-2013; VISIBILITY INTERVAL 52.5 M 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 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 2 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH2 S S) ------------------------------------------------------------------------------------------------------------------------------------ 6 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 233 S (233 POS TARG 0.2, 2.41 CH2 S S) Comments: Please adjust to match observability window ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2013R3-EPOCH2 1 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH2 2 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH2 3 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH2 4 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH2 5 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH2 6 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S 13612( 5) - 20-Nov-2013 16:00:03 - [ 7] Visit: 03 Visit Requirements: BETWEEN 13-DEC-2013 AND 27-DEC-2013; VISIBILITY INTERVAL 52.5 M 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 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH3 S S) ------------------------------------------------------------------------------------------------------------------------------------ 2 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH3 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH3 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH3 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH3 S S) ------------------------------------------------------------------------------------------------------------------------------------ 6 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 233 S (233 POS TARG 0.2, 2.41 CH3 S S) Comments: Please adjust to match observability window ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2013R3-EPOCH3 1 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH3 2 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH3 3 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH3 4 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH3 5 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH3 6 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S 13612( 5) - 20-Nov-2013 16:00:03 - [ 8] Visit: 04 Visit Requirements: BETWEEN 13-JAN-2014 AND 27-JAN-2014; VISIBILITY INTERVAL 52.5 M 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 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH4 S S) ------------------------------------------------------------------------------------------------------------------------------------ 2 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH4 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH4 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH4 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH4 S S) ------------------------------------------------------------------------------------------------------------------------------------ 6 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 233 S (233 POS TARG 0.2, 2.41 CH4 S S) Comments: Please adjust to match observability window ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2013R3-EPOCH4 1 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH4 2 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH4 3 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH4 4 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH4 5 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH4 6 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S 13612( 5) - 20-Nov-2013 16:00:03 - [ 9] Visit: 05 Visit Requirements: BETWEEN 13-FEB-2014 AND 27-FEB-2014; VISIBILITY INTERVAL 52.5 M 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 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH5 S S) ------------------------------------------------------------------------------------------------------------------------------------ 2 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH5 S S) ------------------------------------------------------------------------------------------------------------------------------------ 3 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 CH5 S S) ------------------------------------------------------------------------------------------------------------------------------------ 4 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH5 S S) ------------------------------------------------------------------------------------------------------------------------------------ 5 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 348 S (348 POS TARG 0.2, 2.41 CH5 S S) ------------------------------------------------------------------------------------------------------------------------------------ 6 P2013R3-EPO WFC3/UVI ACCUM UVIS2 F350LP CR-SPLIT=NO 1 233 S (233 POS TARG 0.2, 2.41 CH5 S S) Comments: Please adjust to match observability window ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2013R3-EPOCH5 1 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH5 2 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH5 3 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH5 4 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH5 5 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S P2013R3-EPOCH5 6 WFC3/UVI ACCUM UVIS2 F350LP none none none none 1 N/A S 13612( 5) - 20-Nov-2013 16:00:03 - [ 10] Summary Form for Proposal 13612 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 11-OCT-2013 AND 04-NOV-2013, BETWEEN 13-DEC-2013 AND 27-DEC-2013, BETWEEN 13-FEB-2014 AND 27-FEB-2014, BETWEEN 13-JAN-2014 AND 27-JAN-2014, BETWEEN 13-NOV-2013 AND 27-NOV-2013, POS TARG 0.2, 2.41, VISIBILITY INTERVAL 52.5 M ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F350LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names P2013R3-EPOCH1, P2013R3-EPOCH2, P2013R3-EPOCH3, P2013R3-EPOCH4, P2013R3-EPOCH5 ------------------------------------------------------------------------------------------------------------------------------------