12943( 5) - 19-Aug-2013 13:36:34 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12943 Version: 5 Check-in Time: 19-Aug-2013 13:36:34 STScI Edit Number: 0 Title Testing the Cold Stream Accretion Model Using Lyman Alpha Blobs ------------------------------------------------------------------------------------ Type Cycle GO 20 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Yujin Yang Max-Planck-Institut fur Astronomie, Y Heidelberg CoI: Dr. Fabian Walter Max-Planck-Institut fur Astronomie, N Heidelberg CoI: Dr. Roberto Decarli Max-Planck-Institut fur Astronomie, N Heidelberg CoI: Dr. Andrea Maccio' Max-Planck-Institut fur Astronomie, N Heidelberg CoI: Dr. Mark Dijkstra Max-Planck-Institut fur Astrophysik N CoI: Dr. Joakim Rosdahl Centre de Recherche Astronomique de Lyon N CoI: Dr. Jeremy Blaizot Centre de Recherche Astronomique de Lyon N CoI: Prof. Frank Bertoldi Universitat Bonn, Argelander Institute for N Astronomy ------------------------------------------------------------------------------------ Abstract We propose to use WFC3/F502N narrowband imaging to search for filamentary/stream structures within Ly-alpha blobs in the SSA22 proto-cluster of these objects at z=3.1. It has been suggested that these giant Ly-alpha emission line nebulae (typical sizes of ~100kpc) are massive galaxies onto which ''cold gas streams'' are being accreted. In this scenario, filamentary streams of Ly-alpha emission should be seen. The detailed morphology of the Ly-alpha-emitting gas has never been observed due to a lack of spatial resolution in ground-based imaging observations. By exploiting a narrowband filter that fortuitously coincides with Ly-alpha emission at the proto-cluster redshift, we can obtain deep, narrowband imaging at sufficient resolution for 5 Ly-alpha blobs and ~4 compact emitters in a single pointing. These data will allow us to spatially resolve the predicted streams and thereby confirm or disprove the cold mode accretion scenario for these most promising candidates for gas-accreting galaxies at high redshift. Furthermore, the proposed observations will provide the first direct constraints on theoretical models that explore the observational signatures of gas flows (in or out), which are vital to our understanding of galaxy formation and evolution. ------------------------------------------------------------------------------------ Observations Description ------------------------ This proposal aims to study the detailed morphology of Ly-alpha emission around the two brightest Lyman alpha blobs (LABs) and look for filamentary/stream substructures of Ly-alpha-emitting gas. --------------------- General Information --------------------- 12943( 5) - 19-Aug-2013 13:36:34 - [ 2] 1. We request to observe the extended Lyman alpha emission with WFC3/UVIS + F502N narrowband filter (total 18 orbits). 2. We request to observe the embedded galaxies with WFC3/UVIS + F625W broadband filter to trace their UV continuum (2 orbits). --------------------- Special Requests --------------------- There are two special requests in our program as follows, and all of them were requested and approved in the phase 1 proposal. 1. ORIENT Constraint: The camera has to be oriented as requested, so that all the sources of interest will be imaged simultaneously. Two main sources are located at the corner of each chip diagonally. While we requested a stringent ORIENT constraint with Delta_PA ~ 20 degrees in the phase 1 proposal, we found that fixing roll angle to a certain value (here roll angle = 74 or 254 degree) do not affect the schedulability in the Visit planner, so we set the ORIENT requirement to these two values. 2. LOW-SKY: Because our target is very faint, we request low-sky constraint to minimize the sky background. This will reduce the visibility slightly, its effect should be minimal. 3. Post-flash In order to mitigate the CTE issue, we use the post-flash of 12e- for the F502N narrowband observations. Originally, we considered to use 3x3 binning, but we decided to use no binning and post-flash after consulting the instrument scientists in STScI. --------------------- Visits & Orbits --------------------- We split our allocated orbits into 6 visits each with 2 or 4 orbits. In F502N narrowband observations, we do not dither during a visit (4 orbits) to accumulate the signal into the same pixels, but apply small offsets (using POS TARG, +- 0.16 or 0.08 arcsec) between the visits. # Summary: setup = 1x1 binning, ORIENT, LOW-SKY visit1 : 4 orbits = 3 x F502N + 1 x F625W visit2 : 4 orbits = 3 x F502N + 1 x F625W visit3 : 4 orbits = 4 x F502N visit4 : 4 orbits = 4 x F502N visit5 : 4 orbits = 4 x F502N Real Time Justification ----------------------- N/A Calibration Justification 12943( 5) - 19-Aug-2013 13:36:34 - [ 3] ------------------------- N/A Additional Comments ------------------- Coordinated parallel observations: 1. We attached parallel ACS/G800L-grism observations for the primary F502N narrowband imaging (18 orbits). For each visit, we obtain only one or two direct images (F606W) to obtain zero point of grism data. Due to long exposure times (1 exposure per orbit) in both primary and parallel observations, there is no issues related to buffer dumps. 2. But we did not attached any parallel observation for the primary F625W broadband imaging (2 orbits) because of the limitations on buffer dumps (there are already three readouts with dithering). ------------------------------------------------------------------------------------ 12943( 5) - 19-Aug-2013 13:36:34 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22-LAB GALAXY, HIGH REDSHIFT RA=22H17M32.5108S +/- 0.1", J2000 Z = 3.09 Flux(Lyman-alpha) ~ 1e-16 erg/s/cm^2 GALAXY, LYMAN ALPHA DEC=+00D13'2.99" +/- 0.1" CLOUD Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 12943( 5) - 19-Aug-2013 13:36:34 - [ 5] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE-3PT Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.135 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern YES ------------------------------------------------------------------------------------------------------------------------------------ 12943( 5) - 19-Aug-2013 13:36:34 - [ 6] Visit: 01 Visit Requirements: ORIENT 74D TO 74 D; ORIENT 254D TO 254 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2700 S POS TARG 0, 0; LOW-SKY; S ER (2700 S) PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY ACS/WFC ACCUM WFC G800L 1 2150 S (2150 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0, 0; LOW-SKY; S ER (2730 S) PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0, 0; LOW-SKY; S ER (2730 S) PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F625W 1 850 S PATTERN 1 7 S ER (2550 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSA22-LAB 1 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 1 N/A S TER ANY 2 ACS/WFC ACCUM WFC G800L none none none none 1 N/A SSA22-LAB 3 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 2 N/A S TER ANY 4 ACS/WFC ACCUM WFC G800L none none none none 2 N/A SSA22-LAB 5 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 3 N/A S TER ANY 6 ACS/WFC ACCUM WFC G800L none none none none 3 N/A SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F625W 1 none none none 4 N/A S TER SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F625W 2 none none none 4 N/A S TER SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F625W 3 none none none 4 N/A S TER 12943( 5) - 19-Aug-2013 13:36:34 - [ 7] Visit: 02 Visit Requirements: ORIENT 74D TO 74 D; ORIENT 254D TO 254 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2700 S POS TARG 0.08, -0.08; S ER (2700 S) LOW-SKY; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY ACS/WFC ACCUM WFC G800L 1 2150 S (2150 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0.08, -0.08; S ER (2730 S) LOW-SKY; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0.08, -0.08; S ER (2730 S) LOW-SKY; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F625W 1 850 S PATTERN 1 7 S ER (2550 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSA22-LAB 1 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 1 N/A S TER ANY 2 ACS/WFC ACCUM WFC G800L none none none none 1 N/A SSA22-LAB 3 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 2 N/A S TER ANY 4 ACS/WFC ACCUM WFC G800L none none none none 2 N/A SSA22-LAB 5 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 3 N/A S TER ANY 6 ACS/WFC ACCUM WFC G800L none none none none 3 N/A SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F625W 1 none none none 4 N/A S TER SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F625W 2 none none none 4 N/A S TER SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F625W 3 none none none 4 N/A S TER 12943( 5) - 19-Aug-2013 13:36:34 - [ 8] Visit: 03 Visit Requirements: ORIENT 74D TO 74 D; ORIENT 254D TO 254 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2700 S POS TARG 0.16, 0.16; S ER (2700 S) LOW-SKY; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY ACS/WFC ACCUM WFC G800L 1 2150 S (2150 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0.16, 0.16; S ER (2730 S) LOW-SKY; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0.16, 0.16; S ER (2730 S) LOW-SKY; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY ACS/WFC ACCUM WFC G800L 1 2220 S (2220 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG 0.16, 0.16; S ER (2730 S) LOW-SKY; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSA22-LAB 1 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 1 N/A S TER ANY 2 ACS/WFC ACCUM WFC G800L none none none none 1 N/A SSA22-LAB 3 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 2 N/A S TER ANY 4 ACS/WFC ACCUM WFC G800L none none none none 2 N/A SSA22-LAB 5 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 3 N/A S TER ANY 6 ACS/WFC ACCUM WFC G800L none none none none 3 N/A SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 4 N/A S TER ANY 8 ACS/WFC ACCUM WFC G800L none none none none 4 N/A 12943( 5) - 19-Aug-2013 13:36:34 - [ 9] Visit: 04 Visit Requirements: ORIENT 74D TO 74 D; ORIENT 254D TO 254 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2700 S POS TARG -0.16, -0.16; S ER (2700 S) LOW-SKY; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY ACS/WFC ACCUM WFC G800L 1 2150 S (2150 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG -0.16, -0.16; S ER (2730 S) LOW-SKY; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG -0.16, -0.16; S ER (2730 S) LOW-SKY; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY ACS/WFC ACCUM WFC G800L 1 2220 S (2220 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG -0.16, -0.16; S ER (2730 S) LOW-SKY; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSA22-LAB 1 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 1 N/A S TER ANY 2 ACS/WFC ACCUM WFC G800L none none none none 1 N/A SSA22-LAB 3 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 2 N/A S TER ANY 4 ACS/WFC ACCUM WFC G800L none none none none 2 N/A SSA22-LAB 5 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 3 N/A S TER ANY 6 ACS/WFC ACCUM WFC G800L none none none none 3 N/A SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 4 N/A S TER ANY 8 ACS/WFC ACCUM WFC G800L none none none none 4 N/A 12943( 5) - 19-Aug-2013 13:36:34 - [ 10] Visit: 05 Visit Requirements: ORIENT 74D TO 74 D; ORIENT 254D TO 254 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2700 S POS TARG -0.08, 0.08; S ER (2700 S) LOW-SKY; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY ACS/WFC ACCUM WFC G800L 1 2150 S (2150 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG -0.08, 0.08; S ER (2730 S) LOW-SKY; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG -0.08, 0.08; S ER (2730 S) LOW-SKY; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY ACS/WFC ACCUM WFC G800L 1 2220 S (2220 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SSA22-LAB WFC3/UVI ACCUM UVIS-CENT F502N FLASH=12 1 2730 S POS TARG -0.08, 0.08; S ER (2730 S) LOW-SKY; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY ACS/WFC ACCUM WFC G800L AUTOIMAGE=NO 1 2600 S (2600 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSA22-LAB 1 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 1 N/A S TER ANY 2 ACS/WFC ACCUM WFC G800L none none none none 1 N/A SSA22-LAB 3 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 2 N/A S TER ANY 4 ACS/WFC ACCUM WFC G800L none none none none 2 N/A SSA22-LAB 5 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 3 N/A S TER ANY 6 ACS/WFC ACCUM WFC G800L none none none none 3 N/A SSA22-LAB 7 WFC3/UVI ACCUM UVIS-CEN F502N none none none none 4 N/A S TER ANY 8 ACS/WFC ACCUM WFC G800L none none none none 4 N/A 12943( 5) - 19-Aug-2013 13:36:34 - [ 11] Summary Form for Proposal 12943 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS-CENTER, WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters AUTOIMAGE=NO, FLASH=12 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements LOW-SKY, ORIENT 254D TO 254 D, ORIENT 74D TO 74 D, PAR 2 WITH 1, PAR 4 WITH 3, PAR 6 WITH 5, PAR 8 WITH 7, PATTERN 1 7, POS TARG -0.08, 0.08, POS TARG -0.16, -0.16, POS TARG 0, 0, POS TARG 0.08, -0.08, POS TARG 0.16, 0.16 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F502N, F625W, G800L ------------------------------------------------------------------------------------------------------------------------------------ Target Names ANY, SSA22-LAB ------------------------------------------------------------------------------------------------------------------------------------