11633( 4) - 18-May-2009 15:53:33 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11633 Version: 4 Check-in Time: 18-May-2009 15:53:33 STScI Edit Number: 1 Title A Precision White Dwarf Cooling Age for NGC 6397 ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. R. Michael Rich University of California - Los Angeles CoI: Dr. Jay Anderson Space Telescope Science Institute N CoI: Dr. Brad M. Hansen University of California - Los Angeles N CoI: Dr. Harvey B. Richer University of British Columbia N CoI: Dr. Jarrod Hurley American Museum of Natural History N CoI: Dr. Ivan R. King University of Washington N CoI: Dr. Michael Shara American Museum of Natural History N CoI: Dr. Peter B. Stetson Dominion Astrophysical Observatory N CoI: Dr. David B. Reitzel University of California - Los Angeles N ------------------------------------------------------------------------------------ Abstract We propose to obtain second epoch imaging of the globular cluster NGC 6397, which has the deepest ACS/WFC dataset (126 orbits in Cycle 13) ever obtained in a globular cluster. These additional 14 orbits would enable the construction of a proper motion - cleaned white dwarf cooling sequence reaching fainter than the observed truncation point of the white dwarf luminosity function; a byproduct will be absolute proper motions (relative to the extragalactic reference frame) of the rich spheroid field population. Our data shows the long sought ``blue hook'', a feature in the WD cooling sequence predicted in theoretical white dwarf models; the improved photometry and statistics afforded by the second epoch observations are needed to confirm the blue hook and to test other aspects of white dwarf cooling models that contribute to a 0.5 Gyr or greater uncertainty in the age. The proposed observations will provide formal constraints on the age and formation timescale of NGC 6397 that will be smaller than 1 Gyr and place the cluster's formation epoch relative to the end of reionization. The final proper motion-purified white dwarf sequence will be a powerful constraint for white dwarf cooling models and atmospheres, the basis for white dwarf-based globular cluster age determinations, and also constrain the fraction of binary white dwarfs. ------------------------------------------------------------------------------------ Observations Description ------------------------ second epoch observations to do proper motion cleaning of the cluster sample. Real Time Justification ----------------------- Calibration Justification ------------------------- 11633( 4) - 18-May-2009 15:53:33 - [ 2] Additional Comments ------------------- ------------------------------------------------------------------------------------ 11633( 4) - 18-May-2009 15:53:33 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 N6397-C13 STELLAR CLUSTER, RA=17H41M2.6960S +/- 0.1", J2000 V = 30.0 +/- 0.5 I=28.0 +/- 1 GLOBULAR CLUSTER DEC=-53D44'20.79" +/- 0.1" Reference Frame: Other: HST_Target Comments: ------------------------------------------------------------------------------------------------------------------------------------ 11633( 4) - 18-May-2009 15:53:33 - [ 4] Visit: 01 Visit Requirements: ORIENT 270.35D TO 270.35 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 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 40.0 S POS TARG -0.716287, -0.476637; SEQ 1-5 NON-INT; PAR 3 WITH 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1280.0 S POS TARG -0.716287, -0.476637 ------------------------------------------------------------------------------------------------------------------------------------ 3 ANY WFC3/UVI ACCUM UVIS-CENT F606W 1 720.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 4 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1280.0 S POS TARG -0.426044, -0.460661; PAR 5 WITH 4 ------------------------------------------------------------------------------------------------------------------------------------ 5 ANY WFC3/UVI ACCUM UVIS-CENT F336W 1 1240.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 6 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 10.0 S POS TARG -0.135802, -0.444684; SEQ 6-10 NON-INT; PAR 8 WITH 6-7 ------------------------------------------------------------------------------------------------------------------------------------ 7 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG -0.135802, -0.444684 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 9 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.154441, -0.468649; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 11 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 5.0 S POS TARG 0.444684, -0.452672; SEQ 11-15 NON-INT; PAR 13 WITH 11-12 ------------------------------------------------------------------------------------------------------------------------------------ 12 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.444684, -0.452672 ------------------------------------------------------------------------------------------------------------------------------------ 13 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER 11633( 4) - 18-May-2009 15:53:33 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 14 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.734927, -0.436696; PAR 15 WITH 14 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ N6397-C13 1 ACS/WFC ACCUM WFC F814W none none none none 1 N/A N6397-C13 2 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 3 WFC3/UVI ACCUM UVIS-CEN F606W none none none 1 1 N/A S TER ANY 3 WFC3/UVI ACCUM UVIS-CEN F606W none none none 2 1 N/A S TER N6397-C13 4 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none 1 1 N/A S TER ANY 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none 2 1 N/A S TER N6397-C13 6 ACS/WFC ACCUM WFC F814W none none none none 2 N/A N6397-C13 7 ACS/WFC ACCUM WFC F814W none none none none 2 N/A ANY 8 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 2 N/A S TER ANY 8 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 2 N/A S TER N6397-C13 9 ACS/WFC ACCUM WFC F814W none none none none 2 N/A ANY 10 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 2 N/A S TER ANY 10 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 2 N/A S TER N6397-C13 11 ACS/WFC ACCUM WFC F814W none none none none 3 N/A N6397-C13 12 ACS/WFC ACCUM WFC F814W none none none none 3 N/A ANY 13 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 3 N/A S TER ANY 13 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 3 N/A S TER N6397-C13 14 ACS/WFC ACCUM WFC F814W none none none none 3 N/A ANY 15 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 3 N/A S TER ANY 15 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 3 N/A S TER 11633( 4) - 18-May-2009 15:53:33 - [ 6] Visit: 02 Visit Requirements: ORIENT 270.35D TO 270.35 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 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 40.0 S POS TARG -0.652381, 0.005326; SEQ 1-5 NON-INT; PAR 3 WITH 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1280.0 S POS TARG -0.652381, 0.005326 ------------------------------------------------------------------------------------------------------------------------------------ 3 ANY WFC3/UVI ACCUM UVIS-CENT F606W 1 720.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 4 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1280.0 S POS TARG -0.362138, 0.021302; PAR 5 WITH 4 ------------------------------------------------------------------------------------------------------------------------------------ 5 ANY WFC3/UVI ACCUM UVIS-CENT F336W 1 1240.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 6 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 10.0 S POS TARG -0.071895, 0.037279; SEQ 6-10 NON-INT; PAR 8 WITH 6-7 ------------------------------------------------------------------------------------------------------------------------------------ 7 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG -0.071895, 0.037279 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 9 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.218348, 0.013314; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 11 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 5.0 S POS TARG 0.508591, 0.029291; SEQ 11-15 NON-INT; PAR 13 WITH 11-12 ------------------------------------------------------------------------------------------------------------------------------------ 12 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.508591, 0.029291 ------------------------------------------------------------------------------------------------------------------------------------ 13 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER 11633( 4) - 18-May-2009 15:53:33 - [ 7] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 14 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.798833, 0.045267; PAR 15 WITH 14 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ N6397-C13 1 ACS/WFC ACCUM WFC F814W none none none none 1 N/A N6397-C13 2 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 3 WFC3/UVI ACCUM UVIS-CEN F606W none none none 1 1 N/A S TER ANY 3 WFC3/UVI ACCUM UVIS-CEN F606W none none none 2 1 N/A S TER N6397-C13 4 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none 1 1 N/A S TER ANY 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none 2 1 N/A S TER N6397-C13 6 ACS/WFC ACCUM WFC F814W none none none none 2 N/A N6397-C13 7 ACS/WFC ACCUM WFC F814W none none none none 2 N/A ANY 8 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 2 N/A S TER ANY 8 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 2 N/A S TER N6397-C13 9 ACS/WFC ACCUM WFC F814W none none none none 2 N/A ANY 10 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 2 N/A S TER ANY 10 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 2 N/A S TER N6397-C13 11 ACS/WFC ACCUM WFC F814W none none none none 3 N/A N6397-C13 12 ACS/WFC ACCUM WFC F814W none none none none 3 N/A ANY 13 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 3 N/A S TER ANY 13 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 3 N/A S TER N6397-C13 14 ACS/WFC ACCUM WFC F814W none none none none 3 N/A ANY 15 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 3 N/A S TER ANY 15 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 3 N/A S TER 11633( 4) - 18-May-2009 15:53:33 - [ 8] Visit: 03 Visit Requirements: ORIENT 270.35D TO 270.35 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 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 40.0 S POS TARG -0.732264, 0.487288; SEQ 1-5 NON-INT; PAR 3 WITH 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1280.0 S POS TARG -0.732264, 0.487288 ------------------------------------------------------------------------------------------------------------------------------------ 3 ANY WFC3/UVI ACCUM UVIS-CENT F606W 1 720.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 4 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1280.0 S POS TARG -0.442021, 0.503265; PAR 5 WITH 4 ------------------------------------------------------------------------------------------------------------------------------------ 5 ANY WFC3/UVI ACCUM UVIS-CENT F336W 1 1240.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 6 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 10.0 S POS TARG -0.151778, 0.519242; SEQ 6-10 NON-INT; PAR 8 WITH 6-7 ------------------------------------------------------------------------------------------------------------------------------------ 7 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG -0.151778, 0.519242 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 9 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.138464, 0.495277; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 11 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 5.0 S POS TARG 0.428707, 0.527230; SEQ 11-15 NON-INT; PAR 13 WITH 11-12 ------------------------------------------------------------------------------------------------------------------------------------ 12 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.428707, 0.527230 ------------------------------------------------------------------------------------------------------------------------------------ 13 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER 11633( 4) - 18-May-2009 15:53:33 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 14 N6397-C13 ACS/WFC ACCUM WFC F814W CR-SPLIT=NO, GAIN=2.0 1 1405.0 S POS TARG 0.718950, 0.511253; PAR 15 WITH 14 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFC3/UVI ACCUM UVIS-CENT F225W 1 1360.0 S S ER ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ N6397-C13 1 ACS/WFC ACCUM WFC F814W none none none none 1 N/A N6397-C13 2 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 3 WFC3/UVI ACCUM UVIS-CEN F606W none none none 1 1 N/A S TER ANY 3 WFC3/UVI ACCUM UVIS-CEN F606W none none none 2 1 N/A S TER N6397-C13 4 ACS/WFC ACCUM WFC F814W none none none none 1 N/A ANY 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none 1 1 N/A S TER ANY 5 WFC3/UVI ACCUM UVIS-CEN F336W none none none 2 1 N/A S TER N6397-C13 6 ACS/WFC ACCUM WFC F814W none none none none 2 N/A N6397-C13 7 ACS/WFC ACCUM WFC F814W none none none none 2 N/A ANY 8 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 2 N/A S TER ANY 8 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 2 N/A S TER N6397-C13 9 ACS/WFC ACCUM WFC F814W none none none none 2 N/A ANY 10 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 2 N/A S TER ANY 10 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 2 N/A S TER N6397-C13 11 ACS/WFC ACCUM WFC F814W none none none none 3 N/A N6397-C13 12 ACS/WFC ACCUM WFC F814W none none none none 3 N/A ANY 13 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 3 N/A S TER ANY 13 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 3 N/A S TER N6397-C13 14 ACS/WFC ACCUM WFC F814W none none none none 3 N/A ANY 15 WFC3/UVI ACCUM UVIS-CEN F225W none none none 1 3 N/A S TER ANY 15 WFC3/UVI ACCUM UVIS-CEN F225W none none none 2 3 N/A S TER 11633( 4) - 18-May-2009 15:53:33 - [ 10] Summary Form for Proposal 11633 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS-CENTER, WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, GAIN=2.0 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 270.35D TO 270.35 D, PAR 10 WITH 9, PAR 13 WITH 11-12, PAR 15 WITH 14, PAR 3 WITH 1-2, PAR 5 WITH 4, PAR 8 WITH 6-7, POS TARG -0.071895, 0.037279, POS TARG -0.135802, -0.444684, POS TARG -0.151778, 0.519242, POS TARG -0.362138, 0.021302, POS TARG -0.426044, -0.460661, POS TARG -0.442021, 0.503265, POS TARG -0.652381, 0.005326, POS TARG -0.716287, -0.476637, POS TARG -0.732264, 0.487288, POS TARG 0.138464, 0.495277, POS TARG 0.154441, -0.468649, POS TARG 0.218348, 0.013314, POS TARG 0.428707, 0.527230, POS TARG 0.444684, -0.452672, POS TARG 0.508591, 0.029291, POS TARG 0.718950, 0.511253, POS TARG 0.734927, -0.436696, POS TARG 0.798833, 0.045267, SEQ 1-5 NON-INT, SEQ 11-15 NON-INT, SEQ 6-10 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F225W, F336W, F606W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names ANY, N6397-C13 ------------------------------------------------------------------------------------------------------------------------------------