11497( 3) - 09-Jan-2008 15:43:12 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11497 Version: 3 Check-in Time: 09-Jan-2008 15:43:12 STScI Edit Number: 2 Title Observations of Mars and 2007 WD5 ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO/DD 16 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Keith S. Noll Space Telescope Science Institute CoI: Dr. I. Neill Reid Space Telescope Science Institute N CoI: Dr. Matt Mountain Space Telescope Science Institute N CoI: Dr. Kenneth Sembach Space Telescope Science Institute N CoI: Mr. Tony Roman Space Telescope Science Institute N CoI: Dr. James F. Bell III Cornell University N CoI: Dr. Michael J. Wolff Space Science Institute N CoI: Dr. Tracy L. Beck Space Telescope Science Institute N CoI: Dr. William B. Sparks Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract We are proposing to observe 2007 WD5 prior to its possible impact with Mars. In the event that an impact does occur, we will also observe the asteroid as it approaches Mars, the impact itself, and the aftermath of the impact. HST has unique capabilities to observe this potentially very unusual event. ------------------------------------------------------------------------------------ Observations Description ------------------------ This DD proposal is set up to observe the asteroid 2007 WD5 shortly before it's close approach to Mars in late January 2007. The first visit, to be scheduled as early in January as windows allow (~Jan 27) will be used to characterize the asteroid by obtaining direct imaging using WFPC2. In the event there is a high probability of a collision, visits on January 30 will be activated. These are intended to detect the impact flash and any observable after effects of the collision. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11497( 3) - 09-Jan-2008 15:43:12 - [ 2] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 TARGET NAME: 2007WD5 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: ASTEROID NEO ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=ASTEROID, A=2.5435673, E=0.6028986, I=2.37274, O=67.48406, W=312.72081, M=2.03815, EQUINOX=J2000, EPOCH=27-OCT-2007:00:00:00 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 25.5 +/- 0.5 ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 TARGET NAME: MARS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET mars ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 STD=MARS ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = -0.5 +/- 0.5 ------------------------------------------------------------------------------------------------------------------------------------ 11497( 3) - 09-Jan-2008 15:43:12 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFPC2-LINE Pattern_Purpose DITHER Number_Of_Points 0.3535 Point_Spacing 3 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 45.0 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 11497( 3) - 09-Jan-2008 15:43:12 - [ 4] Visit: 01 Visit Priority: Visit Requirements: GYRO MODE 2G; SCHED 100%; BETWEEN 26-JAN-2008:00:00:00 AND 27-JAN-2008:23:59:59; VISIBILITY INTERVAL 17.4 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 2007WD5 WFPC2 IMAGE PC1 F606W CLOCKS=YES 1 500.0 S PATTERN 1 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2007WD5 1 WFPC2 IMAGE PC1 F606W 1 none none none 1 N/A 2007WD5 1 WFPC2 IMAGE PC1 F606W 2 none none none 2 N/A 2007WD5 1 WFPC2 IMAGE PC1 F606W 3 none none none 3 N/A 11497( 3) - 09-Jan-2008 15:43:12 - [ 5] Visit: 02 Visit Priority: Visit Requirements: GYRO MODE 2G; BETWEEN 30-JAN-2008:10:20:00 AND 30-JAN-2008:11:50:00; ON HOLD ; VISIBILITY INTERVAL 17.1 M On Hold Comments: On hold pending orbit updates for 2007 WD5. 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 MARS NIC1 MULTIAC NIC1-FIX F113N SAMP-SEQ=SCAMRR, NSAMP=10 30 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 1 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 2 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 3 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 4 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 5 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 6 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 7 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 8 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 9 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 10 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 11 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 12 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 13 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 14 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 15 none 1 N/A CUM 11497( 3) - 09-Jan-2008 15:43:12 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 16 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 17 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 18 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 19 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 20 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 21 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 22 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 23 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 24 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 25 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 26 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 27 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 28 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 29 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 30 none 1 N/A CUM 11497( 3) - 09-Jan-2008 15:43:12 - [ 7] Visit: 03 Visit Priority: Visit Requirements: GYRO MODE 1G; BETWEEN 30-JAN-2008:10:20:00 AND 30-JAN-2008:11:50:00; ON HOLD ; VISIBILITY INTERVAL 17.1 M On Hold Comments: On hold pending orbit updates for 2007 WD5. This is the 1-gyro version of Visit 2 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 MARS NIC1 MULTIAC NIC1-FIX F113N SAMP-SEQ=SCAMRR, NSAMP=10 30 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 1 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 2 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 3 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 4 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 5 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 6 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 7 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 8 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 9 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 10 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 11 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 12 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 13 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 14 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 15 none 1 N/A CUM 11497( 3) - 09-Jan-2008 15:43:12 - [ 8] 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 | ------------------------------------------------------------------------------------------------------------------------------------ MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 16 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 17 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 18 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 19 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 20 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 21 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 22 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 23 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 24 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 25 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 26 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 27 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 28 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 29 none 1 N/A CUM MARS 1 NIC1 MULTIAC NIC1-FIX F113N none none 30 none 1 N/A CUM 11497( 3) - 09-Jan-2008 15:43:12 - [ 9] Visit: 04 Visit Priority: Visit Requirements: GYRO MODE 2G; ON HOLD ; VISIBILITY INTERVAL 17.1 M On Hold Comments: On hold pending orbit updates for 2007 WD5. Additional Comments: Placeholder for WFPC2 observations of Mars before and after impact. This visit may be duplicated for multiple observing windows as available. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 MARS WFPC2 IMAGE PC1-FIX F410M 1 1.2 S ------------------------------------------------------------------------------------------------------------------------------------ 2 MARS WFPC2 IMAGE PC1-FIX F502N 1 1.8 S ------------------------------------------------------------------------------------------------------------------------------------ 3 MARS WFPC2 IMAGE PC1 F673N 1 0.4 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 | ------------------------------------------------------------------------------------------------------------------------------------ MARS 1 WFPC2 IMAGE PC1-FIX F410M none none none none 1 N/A MARS 2 WFPC2 IMAGE PC1-FIX F502N none none none none 1 N/A MARS 3 WFPC2 IMAGE PC1 F673N none none none none 1 N/A 11497( 3) - 09-Jan-2008 15:43:12 - [ 10] Visit: 05 Visit Priority: Visit Requirements: GYRO MODE 1G; ON HOLD ; VISIBILITY INTERVAL 17.1 M On Hold Comments: On hold pending orbit updates for 2007 WD5. This is the 1-gyro version of visit 4. Additional Comments: Placeholder for WFPC2 observations of Mars before and after impact. This visit may be duplicated for multiple observing windows as available. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 MARS WFPC2 IMAGE PC1-FIX F410M 1 1.2 S ------------------------------------------------------------------------------------------------------------------------------------ 2 MARS WFPC2 IMAGE PC1-FIX F502N 1 1.8 S ------------------------------------------------------------------------------------------------------------------------------------ 3 MARS WFPC2 IMAGE PC1 F673N 1 0.4 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 | ------------------------------------------------------------------------------------------------------------------------------------ MARS 1 WFPC2 IMAGE PC1-FIX F410M none none none none 1 N/A MARS 2 WFPC2 IMAGE PC1-FIX F502N none none none none 1 N/A MARS 3 WFPC2 IMAGE PC1 F673N none none none none 1 N/A 11497( 3) - 09-Jan-2008 15:43:12 - [ 11] Summary Form for Proposal 11497 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures NIC1-FIX, PC1, PC1-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations NIC1, WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CLOCKS=YES, NSAMP=10, SAMP-SEQ=SCAMRR ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 26-JAN-2008:00:00:00 AND 27-JAN-2008:23:59:59, BETWEEN 30-JAN-2008:10:20:00 AND 30-JAN-2008:11:50:00, GYRO MODE 1G, GYRO MODE 2G, ON HOLD , PATTERN 1 1, SCHED 100%, VISIBILITY INTERVAL 17.1 M, VISIBILITY INTERVAL 17.4 M ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F113N, F410M, F502N, F606W, F673N ------------------------------------------------------------------------------------------------------------------------------------ Target Names 2007WD5, MARS ------------------------------------------------------------------------------------------------------------------------------------