15860( 6) - 11-Mar-2020 17:31:18 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15860 Version: 6 Check-in Time: 11-Mar-2020 17:31:18 STScI Edit Number: 2 Title Accretion-Triggered Starbursts in Tadpole Galaxies ------------------------------------------------------------------------------------ Type Cycle GO 27 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Bruce Elmegreen IBM T.J. Watson Research Center Y CoI: Prof. Debra M Elmegreen Vassar College N CoI: Dr. Casiana Munoz-Tunon Instituto de Astrofisica de Canarias N CoI: Dr. Morten Andersen Gemini Observatory, Southern Operations N CoI: Dr. Marc Rafelski Space Telescope Science Institute Y CoI: Prof. John S. Gallagher III University of Wisconsin - Madison N CoI: Dr. Jorge Sanchez Almeida Instituto de Astrofisica de Canarias N CoI: Dr. Ralf Kotulla University of Wisconsin - Madison N ------------------------------------------------------------------------------------ Abstract Gas accretion onto galaxies is believed to drive the average star formation rate. However, there are few observations of this accretion for late-type galaxies, especially impacting the disk or triggering a starburst in the disk. Here we propose optical and Halpha imaging of four metal-poor tadpole galaxies that have local metallicity drops by a factor of ~5 in relatively large off-center starburst clumps. The bursts and the unusual metallicities suggest recent accretion of large gas masses. Photometry plus SED modeling will determine the ages, masses, and luminosity distributions of the star clusters and star complexes in the bursts. Halpha will reveal ionization rates along with feedback and possible accretion structures. The sample represents the nearest low-mass galaxies that have high-resolution metallicity variations and single dominant starburst clumps. The results have broad implications for understanding the mass-metallicity relation for galaxies, the formation and feedback of stars and massive clusters in accretion-induced starbursts, and the origin of metal-poor globular clusters in the early universe. Only HST has the combination of angular resolution and sensitivity to carry out this program. ------------------------------------------------------------------------------------ Observations Description ------------------------ We are imaging 4 tadpole galaxies with 3 NUV to optical filters and 1 H-alpha filter for 4 orbits each for a total of 16 orbits. These galaxies have a clear metallicity drop measured in the head vs. the tail with a clear star-forming head and an extended tail. The F390W filter samples the rest-frame NUV redward of the 2175A dust 'bump'. F547M samples the optical red- ward of the [OII] 3727 A line and the Balmer break at 3650A and is blue-ward of H-alpha making it perfect for continuum subtraction. F814W samples the red-optical. F657N samples the H-alpha line and is broader than F656N to encompass possible blueshifts or redshifts with respect to the galaxies. We are obtaining 3 dithered exposures per filter to clean them of cosmic rays and image artifcats and subsample the PSF. We use a 3 point dither pattern with 15860( 6) - 11-Mar-2020 17:31:18 - [ 2] the step sized multiplied by a factor of 5 for WFC3 to dither over the blotchy pattern remaining in the background of the observations. We use a 4 point dither pattern with a step sized multiplied by 17 for ACS. We post-flash F390W by 5e-, F547M by 2e-, and F657N by 9 e- to get to 12e- background per exposure. We use WFC3/UVIS for the blue filters and F657N, and use ACS/WFC for F814W since it has approximately a factor of 2 higher throughput in the red. We use F657N with WFC3/UVIS instead of ACS as it is broader than the H-alpha filter on ACS allowing us to include possible blue or redshifted flux. We will drizzle all images to the same plate scale for pixel-matched images. We place the entire galaxy on one chip as not to have the chip gap on the galaxy. We place the galaxies on Chip 2 of WFC3 as it has a slightly higher throughput in the UV. We place the galaxies on Chip 1 of ACS as it has lower read noise. We place the galaxy on the center of the chip aligned with the chip to capture peripheral emission. We ensure that the head to tail direction is not in line with the readout direction. We make sure the allowed PAs are sufficiently wide for easy scheduling. ------------------------------------------------------------------------------------ 15860( 6) - 11-Mar-2020 17:31:18 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 KISO3868 GALAXY, DWARF COMPACT RA=09H40M12.1780S, J2000 V = 15.69 DEC=+29D35'29.72" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 SBS0 GALAXY, DWARF COMPACT RA=09H44M17.2605S, J2000 V = 18.68 DEC=+54D11'28.45" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 SBS1 GALAXY, DWARF COMPACT RA=11H32M2.4232S, J2000 V = 16.26 DEC=+57D22'45.68" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 4 UM461 GALAXY, DWARF COMPACT RA=11H51M32.4925S, J2000 V = 16.38 DEC=-02D22'22.00" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 15860( 6) - 11-Mar-2020 17:31:18 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE-3PT Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 3.025 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO Pattern_Comments: This is 5 times the normal UVIS Dither 3 point to dither over the background blotchy pattern ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 4.454 Line_Spacing 3.264 Coordinate_Frame POS-TARG Pattern_Orient 18.39 Angle_Between_Sides 68.14 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 15860( 6) - 11-Mar-2020 17:31:18 - [ 5] Visit: 01 (KISO3868 WFC3) Visit Requirements: ORIENT 290D TO 330 D; ORIENT 110D TO 150 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 KISO3868 WFC3/UVI ACCUM UVIS2 F390W FLASH=5 1 853 S PATTERN 1 1 S (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 KISO3868 WFC3/UVI ACCUM UVIS2 F547M FLASH=2 1 864 S PATTERN 1 2 S (2592 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 KISO3868 WFC3/UVI ACCUM UVIS2 F657N FLASH=9 1 862 S PATTERN 1 3 S (2586 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 | ------------------------------------------------------------------------------------------------------------------------------------ KISO3868 1 WFC3/UVI ACCUM UVIS2 F390W 1 none none none 1 N/A S KISO3868 1 WFC3/UVI ACCUM UVIS2 F390W 2 none none none 1 N/A S KISO3868 1 WFC3/UVI ACCUM UVIS2 F390W 3 none none none 1 N/A S KISO3868 2 WFC3/UVI ACCUM UVIS2 F547M 1 none none none 2 N/A S KISO3868 2 WFC3/UVI ACCUM UVIS2 F547M 2 none none none 2 N/A S KISO3868 2 WFC3/UVI ACCUM UVIS2 F547M 3 none none none 2 N/A S KISO3868 3 WFC3/UVI ACCUM UVIS2 F657N 1 none none none 3 N/A S KISO3868 3 WFC3/UVI ACCUM UVIS2 F657N 2 none none none 3 N/A S KISO3868 3 WFC3/UVI ACCUM UVIS2 F657N 3 none none none 3 N/A S 15860( 6) - 11-Mar-2020 17:31:18 - [ 6] Visit: 02 (SBS0 WFC3) Visit Requirements: ORIENT 310D TO 70 D; ORIENT 130D TO 250 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 SBS0 WFC3/UVI ACCUM UVIS2 F390W FLASH=5 1 909 S PATTERN 1 1 S (2727 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SBS0 WFC3/UVI ACCUM UVIS2 F547M FLASH=2 1 920 S PATTERN 1 2 S (2760 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SBS0 WFC3/UVI ACCUM UVIS2 F657N FLASH=9 1 918 S PATTERN 1 3 S (2754 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 | ------------------------------------------------------------------------------------------------------------------------------------ SBS0 1 WFC3/UVI ACCUM UVIS2 F390W 1 none none none 1 N/A S SBS0 1 WFC3/UVI ACCUM UVIS2 F390W 2 none none none 1 N/A S SBS0 1 WFC3/UVI ACCUM UVIS2 F390W 3 none none none 1 N/A S SBS0 2 WFC3/UVI ACCUM UVIS2 F547M 1 none none none 2 N/A S SBS0 2 WFC3/UVI ACCUM UVIS2 F547M 2 none none none 2 N/A S SBS0 2 WFC3/UVI ACCUM UVIS2 F547M 3 none none none 2 N/A S SBS0 3 WFC3/UVI ACCUM UVIS2 F657N 1 none none none 3 N/A S SBS0 3 WFC3/UVI ACCUM UVIS2 F657N 2 none none none 3 N/A S SBS0 3 WFC3/UVI ACCUM UVIS2 F657N 3 none none none 3 N/A S 15860( 6) - 11-Mar-2020 17:31:18 - [ 7] Visit: 03 (SBS1 WFC3) Visit Requirements: ORIENT 320D TO 80 D; ORIENT 140D TO 260 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 SBS1 WFC3/UVI ACCUM UVIS2 F390W FLASH=5 1 928 S PATTERN 1 1 S (2784 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SBS1 WFC3/UVI ACCUM UVIS2 F547M FLASH=2 1 939 S PATTERN 1 2 S (2817 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SBS1 WFC3/UVI ACCUM UVIS2 F657N FLASH=9 1 937 S PATTERN 1 3 S (2811 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 | ------------------------------------------------------------------------------------------------------------------------------------ SBS1 1 WFC3/UVI ACCUM UVIS2 F390W 1 none none none 1 N/A S SBS1 1 WFC3/UVI ACCUM UVIS2 F390W 2 none none none 1 N/A S SBS1 1 WFC3/UVI ACCUM UVIS2 F390W 3 none none none 1 N/A S SBS1 2 WFC3/UVI ACCUM UVIS2 F547M 1 none none none 2 N/A S SBS1 2 WFC3/UVI ACCUM UVIS2 F547M 2 none none none 2 N/A S SBS1 2 WFC3/UVI ACCUM UVIS2 F547M 3 none none none 2 N/A S SBS1 3 WFC3/UVI ACCUM UVIS2 F657N 1 none none none 3 N/A S SBS1 3 WFC3/UVI ACCUM UVIS2 F657N 2 none none none 3 N/A S SBS1 3 WFC3/UVI ACCUM UVIS2 F657N 3 none none none 3 N/A S 15860( 6) - 11-Mar-2020 17:31:18 - [ 8] Visit: 04 (UM461 WFC3) Visit Requirements: ORIENT 290D TO 330 D; ORIENT 110D TO 150 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 UM461 WFC3/UVI ACCUM UVIS2 F390W FLASH=5 1 845 S GS ACQ SCENARIO BASE1B3; S (2535 S) PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 UM461 WFC3/UVI ACCUM UVIS2 F547M FLASH=2 1 856 S PATTERN 1 2 S (2568 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 UM461 WFC3/UVI ACCUM UVIS2 F657N FLASH=9 1 854 S PATTERN 1 3 S (2562 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 | ------------------------------------------------------------------------------------------------------------------------------------ UM461 1 WFC3/UVI ACCUM UVIS2 F390W 1 none none none 1 N/A S UM461 1 WFC3/UVI ACCUM UVIS2 F390W 2 none none none 1 N/A S UM461 1 WFC3/UVI ACCUM UVIS2 F390W 3 none none none 1 N/A S UM461 2 WFC3/UVI ACCUM UVIS2 F547M 1 none none none 2 N/A S UM461 2 WFC3/UVI ACCUM UVIS2 F547M 2 none none none 2 N/A S UM461 2 WFC3/UVI ACCUM UVIS2 F547M 3 none none none 2 N/A S UM461 3 WFC3/UVI ACCUM UVIS2 F657N 1 none none none 3 N/A S UM461 3 WFC3/UVI ACCUM UVIS2 F657N 2 none none none 3 N/A S UM461 3 WFC3/UVI ACCUM UVIS2 F657N 3 none none none 3 N/A S 15860( 6) - 11-Mar-2020 17:31:18 - [ 9] Visit: 05 (KISO3868 ACS) Visit Requirements: ORIENT 315D TO 35 D; ORIENT 135D TO 215 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 KISO3868 ACS/WFC ACCUM WFC1 F814W 1 339 S PATTERN 3 1 see below (2120 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 | ------------------------------------------------------------------------------------------------------------------------------------ KISO3868 1 ACS/WFC ACCUM WFC1 F814W 1 none none none 1 530.0 S KISO3868 1 ACS/WFC ACCUM WFC1 F814W 2 none none none 1 530.0 S KISO3868 1 ACS/WFC ACCUM WFC1 F814W 3 none none none 1 530.0 S KISO3868 1 ACS/WFC ACCUM WFC1 F814W 4 none none none 1 530.0 S 15860( 6) - 11-Mar-2020 17:31:18 - [ 10] Visit: 06 (SBS0 ACS) Visit Requirements: ORIENT 355D TO 115 D; ORIENT 175D TO 295 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 SBS0 ACS/WFC ACCUM WFC1 F814W 1 339 S PATTERN 3 1 see below (2288 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 | ------------------------------------------------------------------------------------------------------------------------------------ SBS0 1 ACS/WFC ACCUM WFC1 F814W 1 none none none 1 572.0 S SBS0 1 ACS/WFC ACCUM WFC1 F814W 2 none none none 1 572.0 S SBS0 1 ACS/WFC ACCUM WFC1 F814W 3 none none none 1 572.0 S SBS0 1 ACS/WFC ACCUM WFC1 F814W 4 none none none 1 572.0 S 15860( 6) - 11-Mar-2020 17:31:18 - [ 11] Visit: 07 (SBS1 ACS) Visit Requirements: ORIENT 05D TO 74 D; ORIENT 185D TO 305 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 SBS1 ACS/WFC ACCUM WFC1 F814W 1 339 S PATTERN 3 1 see below (2344 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 | ------------------------------------------------------------------------------------------------------------------------------------ SBS1 1 ACS/WFC ACCUM WFC1 F814W 1 none none none 1 586.0 S SBS1 1 ACS/WFC ACCUM WFC1 F814W 2 none none none 1 586.0 S SBS1 1 ACS/WFC ACCUM WFC1 F814W 3 none none none 1 586.0 S SBS1 1 ACS/WFC ACCUM WFC1 F814W 4 none none none 1 586.0 S 15860( 6) - 11-Mar-2020 17:31:18 - [ 12] Visit: 08 (UM461 ACS) Visit Requirements: ORIENT 315D TO 35 D; ORIENT 135D TO 215 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 UM461 ACS/WFC ACCUM WFC1 F814W 1 339 S PATTERN 3 1 see below (2096 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 | ------------------------------------------------------------------------------------------------------------------------------------ UM461 1 ACS/WFC ACCUM WFC1 F814W 1 none none none 1 524.0 S UM461 1 ACS/WFC ACCUM WFC1 F814W 2 none none none 1 524.0 S UM461 1 ACS/WFC ACCUM WFC1 F814W 3 none none none 1 524.0 S UM461 1 ACS/WFC ACCUM WFC1 F814W 4 none none none 1 524.0 S 15860( 6) - 11-Mar-2020 17:31:18 - [ 13] Visit: 55 (KISO3868 ACS) Visit Requirements: ORIENT 315D TO 35 D; ORIENT 135D TO 215 D On Hold Comments: Additional Comments: Duplicate of failed visit 05 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 KISO3868 ACS/WFC ACCUM WFC1 F814W 1 339 S PATTERN 3 1 see below (2120 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 | ------------------------------------------------------------------------------------------------------------------------------------ KISO3868 1 ACS/WFC ACCUM WFC1 F814W 1 none none none 1 530.0 S KISO3868 1 ACS/WFC ACCUM WFC1 F814W 2 none none none 1 530.0 S KISO3868 1 ACS/WFC ACCUM WFC1 F814W 3 none none none 1 530.0 S KISO3868 1 ACS/WFC ACCUM WFC1 F814W 4 none none none 1 530.0 S 15860( 6) - 11-Mar-2020 17:31:18 - [ 14] Summary Form for Proposal 15860 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS2, WFC1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=2, FLASH=5, FLASH=9 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, ORIENT 05D TO 74 D, ORIENT 110D TO 150 D, ORIENT 130D TO 250 D, ORIENT 135D TO 215 D, ORIENT 140D TO 260 D, ORIENT 175D TO 295 D, ORIENT 185D TO 305 D, ORIENT 290D TO 330 D, ORIENT 310D TO 70 D, ORIENT 315D TO 35 D, ORIENT 320D TO 80 D, ORIENT 355D TO 115 D, PATTERN 1 1, PATTERN 1 2, PATTERN 1 3, PATTERN 3 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F390W, F547M, F657N, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names KISO3868, SBS0, SBS1, UM461 ------------------------------------------------------------------------------------------------------------------------------------