13181( 3) - 22-Jan-2013 19:05:37 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13181 Version: 3 Check-in Time: 22-Jan-2013 19:05:37 STScI Edit Number: 0 Title SN 1987A-- Bridging the Gap for HST's Legacy ------------------------------------------------------------------------------------ Type Cycle GO/DD 20 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Robert P. Kirshner Harvard University Y CoI: Dr. Patrice Bouchet CEA/DSM/DAPNIA/Service d'Astrophysique N CoI: Mr. Peter Challis Australian National University N CoI: Dr. Roger A. Chevalier The University of Virginia N CoI: Dr. Arlin Crotts Columbia University in the City of New N York CoI: Dr. John I. Danziger INAF, Osservatorio Astronomico di Trieste N CoI: Dr. Eli Dwek NASA Goddard Space Flight Center N CoI: Dr. Kevin France University of Colorado at Boulder N CoI: Prof. Claes Fransson Stockholm University N CoI: Dr. Peter Garnavich University of Notre Dame N CoI: Dr. Kevin Heng Eidgenossiche Technische Hochschule (ETH) N CoI: Dr. Josefin Larsson Stockholm University N CoI: Dr. Stephen S. Lawrence Hofstra University N CoI: Dr. Bruno Leibundgut European Southern Observatory - Germany N CoI: Prof. Peter Lundqvist Stockholm University N CoI: Dr. Richard McCray University of Colorado at Boulder N CoI: Prof. Nino Panagia Space Telescope Science Institute N CoI: Dr. Jason Pun University of Hong Kong N CoI: Dr. Nathan Smith University of Arizona N CoI: Dr. Jesper Sollerman Stockholm University N CoI: Dr. George Sonneborn NASA Goddard Space Flight Center N CoI: Dr. Ben E. Sugerman Goucher College N CoI: Dr. Nicholas B. Suntzeff Texas A & M University N CoI: Dr. J. Craig Wheeler University of Texas at Austin N ------------------------------------------------------------------------------------ Abstract We request 1 orbit of Directors Discretion Time to avoid a serious gap in the HST observations of a unique event of our (and HSTs) lifetime, SN 1987A. We request this small amount of DD time to continue the very productive imaging portion of the SAINTS SN 1987A program. The last observation of this type was made in January of 2011. If no action is taken, the earliest possible observation will be in 2014. An unbroken string of observations is the essential tool for detecting change and establishing a uniform legacy archive. A gap of a year is not so terrible, a gap of two years is regrettable, but a gap of three years would be a tragedy. As we have demonstrated, these observations are valuable on their own, revealing a new energy source is at work to power the emission from the debris. The HST observations have a unique blend of photometric fidelity and angular resolution that makes them the essential partner to ongoing X-ray, radio, and far-IR observations from the ground and from space. A new element is the 13181( 3) - 22-Jan-2013 19:05:37 - [ 2] advent of ALMA, which has the potential, when used with HST observations, to reveal new aspects of dust formation and the kinematics of the explosion. We need more-or-less simultaneous HST images to extract the maximum understanding from these extensive and sustained efforts at other wavelengths. ------------------------------------------------------------------------------------ Observations Description ------------------------ TBD Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 13181( 3) - 22-Jan-2013 19:05:37 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A EXT-STAR, SUPERNOVA RA=05H35M28.0200S +/- 0.1", J2000 V = 22 DEC=-69D16'11.07" +/- 0.1" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 13181( 3) - 22-Jan-2013 19:05:37 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG Pattern_Orient 23.884 Angle_Between_Sides 81.785 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 13181( 3) - 22-Jan-2013 19:05:37 - [ 5] Visit: 01 Visit Requirements: BETWEEN 01-JAN-2013:00:00:00 AND 31-MAR-2013:00:00:00 On Hold Comments: Additional Comments: The Visit planner indicates a visibility window from Jan 29, 2013 - Feb 20, 2013 an observation during that time would be perfect. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F438W CR-SPLIT=NO, FLASH=12 1 300 S PATTERN 1 1-2 S 1C-SUB ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-1987A WFC3/UVI ACCUM UVIS2-C1K F625W CR-SPLIT=NO 1 300 S S 1C-SUB ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 1 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 2 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 3 none none none 1 N/A S K1C-SUB SN-1987A 1 WFC3/UVI ACCUM UVIS2-C1 F438W 4 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 1 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 2 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 3 none none none 1 N/A S K1C-SUB SN-1987A 2 WFC3/UVI ACCUM UVIS2-C1 F625W 4 none none none 1 N/A S K1C-SUB 13181( 3) - 22-Jan-2013 19:05:37 - [ 6] Summary Form for Proposal 13181 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2-C1K1C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, FLASH=12 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-JAN-2013:00:00:00 AND 31-MAR-2013:00:00:00, PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F438W, F625W ------------------------------------------------------------------------------------------------------------------------------------ Target Names SN-1987A ------------------------------------------------------------------------------------------------------------------------------------