12077( 6) - 25-Mar-2010 18:35:11 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12077 Version: 6 Check-in Time: 25-Mar-2010 18:35:11 STScI Edit Number: 4 Title Monitoring the Aftermath of an Asteroid Impact Event ------------------------------------------------------------------------------------ Type Cycle GO/DD 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. David Jewitt University of California - Los Angeles CoI: Dr. Harold A. Weaver The Johns Hopkins University Applied Y Physics Laboratory CoI: Dr. Michal Drahus University of California - Los Angeles N CoI: Mr. Max Mutchler Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract Our Director's Discretionary program (GO-12053) to image the newly discovered object P/2010 A2 executed successfully on 2010 Jan 25 and 29 with spectacular results. Hubble has apparently borne witness to the first detection of a collision in the asteroid belt. Hubble imaging with the WFC3 has revealed an object unlike anything ever seen before and with details impossible to detect with any other facility. We request 6 more orbits of Hubble time (1 orbit every 20 days over the next few months, until the object enters Hubble's solar exclusion zone in late-June 2010) to monitor the evolution of this remarkable object and further clarify the nature of this event. These observations may usher in a new era of searching for and characterizing collisional events within the asteroid belt. ------------------------------------------------------------------------------------ Observations Description ------------------------ TBD Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12077( 6) - 25-Mar-2010 18:35:11 - [ 2] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: P2010-A2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET ASTEROID collision or MAIN BELT COMET ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.0079460, E=0.1238959, I=5.27048, O=320.21852, W=133.01076, T=03-DEC-2009:21:02:17, EQUINOX=J2000, EPOCH=25-NOV-2009:00:00:00 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 25.5 +/- 1 Ephemeris Center: EARTH Ephemeris Uncertainty: 1000 KM Acquisition Uncertainty: 10 " ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 TARGET NAME: P2010-A2-2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET Asteroid collision or Main Belt Comet ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.0057959, E=0.1243017, I=5.25692, O=320.27799, W=133.12101, T=04-DEC-2009:09:33:07, EQUINOX=J2000, EPOCH=25-NOV-2009:00:00:00 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 26 +/- 1 This is for Visits 3, 4, 5, and 6. Orbital elements are from MPEC-E80. Ephemeris Center: EARTH Ephemeris Uncertainty: 10000 KM Acquisition Uncertainty: 10 " ------------------------------------------------------------------------------------------------------------------------------------ 12077( 6) - 25-Mar-2010 18:35:11 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 TARGET NAME: P2010-A2-3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET Asteroid collision or Main Belt Comet ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=2.0058793, E=0.1243023, I=5.25682, O=320.27856, W=133.22104, T=04-DEC-2009:16:06:01, EQUINOX=J2000, EPOCH=25-NOV-2009:00:00:00 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 26 +/- 1 This is for Visits 4, 5, and 6. Orbital elements are from MPEC-F15. Ephemeris Center: EARTH Ephemeris Uncertainty: 10000 KM Acquisition Uncertainty: 10 " ------------------------------------------------------------------------------------------------------------------------------------ 12077( 6) - 25-Mar-2010 18:35:11 - [ 4] Visit: 01 Visit Requirements: BETWEEN 15-FEB-2010:00:00:00 AND 01-MAR-2010:00:00:00 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V01 S ------------------------------------------------------------------------------------------------------------------------------------ 2 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V01 S ------------------------------------------------------------------------------------------------------------------------------------ 3 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V01 S ------------------------------------------------------------------------------------------------------------------------------------ 4 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V01 ------------------------------------------------------------------------------------------------------------------------------------ 5 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V01 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2010-A2 1 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 2 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 3 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 4 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 5 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X 12077( 6) - 25-Mar-2010 18:35:11 - [ 5] Visit: 02 Visit Requirements: AFTER 01 BY 17 D TO 23 D 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V02 S ------------------------------------------------------------------------------------------------------------------------------------ 2 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V02 S ------------------------------------------------------------------------------------------------------------------------------------ 3 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V02 S ------------------------------------------------------------------------------------------------------------------------------------ 4 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V02 ------------------------------------------------------------------------------------------------------------------------------------ 5 P2010-A2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V02 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2010-A2 1 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 2 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 3 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 4 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2 5 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X 12077( 6) - 25-Mar-2010 18:35:11 - [ 6] Visit: 03 Visit Requirements: AFTER 02 BY 17 D TO 23 D 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 P2010-A2-2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V03 S ------------------------------------------------------------------------------------------------------------------------------------ 2 P2010-A2-2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V03 S ------------------------------------------------------------------------------------------------------------------------------------ 3 P2010-A2-2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V03 S ------------------------------------------------------------------------------------------------------------------------------------ 4 P2010-A2-2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V03 ------------------------------------------------------------------------------------------------------------------------------------ 5 P2010-A2-2 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V03 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2010-A2-2 1 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-2 2 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-2 3 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-2 4 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-2 5 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X 12077( 6) - 25-Mar-2010 18:35:11 - [ 7] Visit: 04 Visit Requirements: AFTER 03 BY 17 D TO 23 D 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V04 S ------------------------------------------------------------------------------------------------------------------------------------ 2 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V04 S ------------------------------------------------------------------------------------------------------------------------------------ 3 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V04 S ------------------------------------------------------------------------------------------------------------------------------------ 4 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V04 ------------------------------------------------------------------------------------------------------------------------------------ 5 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V04 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2010-A2-3 1 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 2 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 3 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 4 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 5 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X 12077( 6) - 25-Mar-2010 18:35:11 - [ 8] Visit: 05 Visit Requirements: AFTER 04 BY 17 D TO 23 D 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V05 S ------------------------------------------------------------------------------------------------------------------------------------ 2 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V05 S ------------------------------------------------------------------------------------------------------------------------------------ 3 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V05 S ------------------------------------------------------------------------------------------------------------------------------------ 4 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V05 ------------------------------------------------------------------------------------------------------------------------------------ 5 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V05 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2010-A2-3 1 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 2 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 3 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 4 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 5 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X 12077( 6) - 25-Mar-2010 18:35:11 - [ 9] Visit: 06 Visit Requirements: AFTER 05 BY 17 D TO 23 D 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V06 S ------------------------------------------------------------------------------------------------------------------------------------ 2 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V06 S ------------------------------------------------------------------------------------------------------------------------------------ 3 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S REQ EPHEM CORR PA2V06 S ------------------------------------------------------------------------------------------------------------------------------------ 4 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V06 ------------------------------------------------------------------------------------------------------------------------------------ 5 P2010-A2-3 WFC3/UVI ACCUM UVIS1-FIX F606W CR-SPLIT=NO 1 425 S POS TARG 0.2, 0.2; REQ S EPHEM CORR PA2V06 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ P2010-A2-3 1 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 2 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 3 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 4 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X P2010-A2-3 5 WFC3/UVI ACCUM UVIS1-FI F606W none none none none 1 N/A S X 12077( 6) - 25-Mar-2010 18:35:11 - [ 10] Summary Form for Proposal 12077 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS1-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01 BY 17 D TO 23 D, AFTER 02 BY 17 D TO 23 D, AFTER 03 BY 17 D TO 23 D, AFTER 04 BY 17 D TO 23 D, AFTER 05 BY 17 D TO 23 D, BETWEEN 15-FEB-2010:00:00:00 AND 01-MAR-2010:00:00:00, POS TARG 0.2, 0.2, REQ EPHEM CORR PA2V01, REQ EPHEM CORR PA2V02, REQ EPHEM CORR PA2V03, REQ EPHEM CORR PA2V04, REQ EPHEM CORR PA2V05, REQ EPHEM CORR PA2V06 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W ------------------------------------------------------------------------------------------------------------------------------------ Target Names P2010-A2, P2010-A2-2, P2010-A2-3 ------------------------------------------------------------------------------------------------------------------------------------