17129( 40) - 13-Dec-2022 13:35:13 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17129 Version: 40 Check-in Time: 13-Dec-2022 13:35:13 STScI Edit Number: 30 Title Hot stars in the stellar evolution laboratory IZw18 ------------------------------------------------------------------------------------ Type Cycle GO 30 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Goeran Oestlin Stockholm University Y CoI: Mr. Conor Nally University of Edinburgh, Institute for N Astronomy CoI: Dr. Linda J. Smith Space Telescope Science Institute N CoI: Dr. Olivia Jones United Kingdom Astronomy Technology Centre N CoI: Dr. Alec S. Hirschauer Space Telescope Science Institute N CoI: Dir. Margaret Meixner Universities Space Research Association N CoI: Dr. Ylva Goetberg Carnegie Institution of Washington N CoI: Dr. Kay Justtanont Chalmers University of Technology N CoI: Dr. Jens Melinder Stockholm University N CoI: Dr. Peter Senchyna Carnegie Institution of Washington N CoI: Giacomo Bortolini Stockholm University N ------------------------------------------------------------------------------------ Abstract The extremly metal-poor star forming galaxy IZw18 is a key laboratory for galactic and stellar evolution studies. Deep HST V- and I-band imaging has revealed an underlying population, and determined its distance through observations of cepheids and the tip of the red giant branch. It will soon be targeted by JWST/NIRCAM and MIRI to provide a complete census of evolved red stars and young stellar objects. However, deep imaging in the blue and ultraviolet which is where the young massive stars are the brightest and are best studied is lacking, which we here propose to remedy. By deep far UV to blue imaging in 4 filters a census of the hot star population in IZw18 and the extinction law at very low metallicity would be obtained. With the exquisite spatial resolution of HST and using the HeII 4686 narrow-band filter, we can, for the first time, identify what sources are responsible for the HeII emission including Wolf-Rayet stars, but also hard ionizing sources, such as rapid rotators, binary stripped stars, or accreting compact objects, and provide constraints on stellar evolutionary theories at low metallicity. The observations would also allow a much improved determination of the recent star formation history, and a chararacterisation of the luminous red stars that JWST will see. ------------------------------------------------------------------------------------ Observations Description ------------------------ WFC3/UVIS observations: F438W: 2 visits with in total 5 (3+2) full orbit duration and dithred exposures with no flash. It uses the 5-point dither schemes described in Anderson (WFC3 2020-07). Should, if possible, be obtained within +/-1 month of the JWST-GTO (program 1233) currently scheduled between 22 Oct and 22 Dec 2022. The target is placed in UVIS2 for optimum blue/UV performance 17129( 40) - 13-Dec-2022 13:35:13 - [ 2] F336W: 2 visits with in total 5 (3+2) full orbit exposures with the same prescription and timing constraints as for F438W, but with flash=5 added to each exposure F225W: 2 visits with in total 5 (3+2) orbits with the same strategy as for F438W and F336W, but flash=8 F469N: 9 orbits wit full orbit exposures, split in three visits, emploing the 9-point dither scheme, as described in Anderson (WFC3 2020-07). Here flash=10. ACS/SBC observations: 4 orbits are dedicated to F140LP observations, split in two visits which should be separated in time with a few hours, during which the SBC high voltage was not turned on, to avoid heating up the SBC detector which would incur increased dark current. We tried first to set the orient constraints such that component C would also be included, but this turned out to be non-schedulable. Instead we focus on the main body and adopt no orient constraints in order to allow scheduling close in time with the other visits. In total, 4 exposures will be obtained, splits in 2 visits to mitigate dark current that builds up with time, and dithered to improve PSF sampling and to step over the bad anode. The SBC observations are deemed fully safe according to the BOT. The referenced ETC calculation assumes an UV AB magnitude of 17.3, fully safe and far brighter (abs mag -15) than any source known to be present in IZw18. ------------------------------------------------------------------------------------ 17129( 40) - 13-Dec-2022 13:35:13 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 MRK-116 GALAXY, DWARF COMPACT, RA=09H34M2.1000S, J2000 V = 15 EMISSION LINE NEBULA DEC=+55D14'25.00" Reference Frame: Other: SIMBAD Extended: YES Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COPY GALAXY, DWARF COMPACT, RA=09H34M2.1000S, J2000 V = 15 EMISSION LINE NEBULA DEC=+55D14'25.00" Reference Frame: Other: SIMBAD Extended: YES Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 17129( 40) - 13-Dec-2022 13:35:13 - [ 4] Visit: 01 (F438W-1) Visit Requirements: SCHED 100% 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F438W 1 2980 S GS ACQ SCENARIO BASE1B3 Y S see below (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F438W 1 2980 S POS TARG 0.1719, 0.1837 Y S see below (2550 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-116-COP WFC3/UVI ACCUM UVIS2 F438W 1 2980 S POS TARG 0.3437, 0.3674 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F438W none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F438W none none none none 2 2550.0 S S MRK-116-COPY 3 WFC3/UVI ACCUM UVIS2 F438W none none none none 3 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 5] Visit: 02 (F336W-1) Visit Requirements: SCHED 100%; SAME ORIENT AS 01 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F336W FLASH=6 1 2980 S GS ACQ SCENARIO BASE1B3 Y S see below (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F336W FLASH=6 1 2980 S POS TARG 0.1719, 0.1837 Y S see below (2550 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-116-COP WFC3/UVI ACCUM UVIS2 F336W FLASH=6 1 2980 S POS TARG 0.3437, 0.3674 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F336W none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F336W none none none none 2 2550.0 S S MRK-116-COPY 3 WFC3/UVI ACCUM UVIS2 F336W none none none none 3 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 6] Visit: 03 (F225W-1) Visit Requirements: SCHED 100%; SAME ORIENT AS 01 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F225W FLASH=9 1 2980 S GS ACQ SCENARIO BASE1B3 Y S see below (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F225W FLASH=9 1 2980 S POS TARG 0.1719, 0.1837 Y S see below (2550 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-116-COP WFC3/UVI ACCUM UVIS2 F225W FLASH=9 1 2980 S POS TARG 0.3437, 0.3674 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F225W none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F225W none none none none 2 2550.0 S S MRK-116-COPY 3 WFC3/UVI ACCUM UVIS2 F225W none none none none 3 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 7] Visit: 04 (F469N-1) Visit Requirements: SCHED 100%; SAME ORIENT AS 01 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S GS ACQ SCENARIO BASE1B3 Y S see below (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.0927, 0.3376 Y S see below (2550 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.1851, 0.1978 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F469N none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F469N none none none none 2 2550.0 S S MRK-116-COPY 3 WFC3/UVI ACCUM UVIS2 F469N none none none none 3 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 8] Visit: 05 (F469N-3) Visit Requirements: SCHED 100%; SAME ORIENT AS 04 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.4760, 0.5352; Y S see below GS ACQ SCENARIO BASE1B3 (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.5687, 0.8331 Y S see below (2550 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.661, 0.3591 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F469N none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F469N none none none none 2 2550.0 S S MRK-116-COPY 3 WFC3/UVI ACCUM UVIS2 F469N none none none none 3 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 9] Visit: 08 (F140LP-1) Visit Requirements: On Hold Comments: Additional Comments: Note to the schedulers that the preceeding few orbits (by another program) should not have used the SBC and the SBC high voltage should have been turned off, so that the current observations start with the SBC cold. 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 MRK-116 ACS/SBC ACCUM SBC F140LP 1 2915 S GS ACQ SCENARIO BASE1BE (2915 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116 ACS/SBC ACCUM SBC F140LP 1 2957 S POS TARG 0.168, 0.062 (2957 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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116 1 ACS/SBC ACCUM SBC F140LP none none none none 1 N/A MRK-116 2 ACS/SBC ACCUM SBC F140LP none none none none 2 N/A 17129( 40) - 13-Dec-2022 13:35:13 - [ 10] Visit: 09 (F140LP-2) Visit Requirements: SAME ORIENT AS 08 On Hold Comments: Additional Comments: Note to the schedulers that the preceeding few orbits (by another program) should not have used the SBC and the SBC high voltage should have been turned off, so that the current observations start with the SBC cold. 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 MRK-116 ACS/SBC ACCUM SBC F140LP 1 2925 S POS TARG 0.084, 0.143 (2925 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116 ACS/SBC ACCUM SBC F140LP 1 2957 S POS TARG -0.084, 0.082 (2957 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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116 1 ACS/SBC ACCUM SBC F140LP none none none none 1 N/A MRK-116 2 ACS/SBC ACCUM SBC F140LP none none none none 2 N/A 17129( 40) - 13-Dec-2022 13:35:13 - [ 11] Visit: 10 (F438W-2) Visit Requirements: SCHED 100%; SAME ORIENT AS 01 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F438W 1 2980 S POS TARG 0.4760, 0.5286; Y S see below GS ACQ SCENARIO BASE1B3 (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F438W 1 2980 S POS TARG 0.6544, 0.6796 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F438W none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F438W none none none none 2 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 12] Visit: 11 (F336W-2) Visit Requirements: SCHED 100%; SAME ORIENT AS 02 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F336W FLASH=6 1 2980 S POS TARG 0.4760, 0.5286; Y S see below GS ACQ SCENARIO BASE1B3 (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F336W FLASH=6 1 2980 S POS TARG 0.6544, 0.6796 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F336W none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F336W none none none none 2 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 13] Visit: 12 (F225W-2) Visit Requirements: SCHED 100%; SAME ORIENT AS 03 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F225W FLASH=9 1 2980 S POS TARG 0.4760, 0.5286; Y S see below GS ACQ SCENARIO BASE1B3 (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F225W FLASH=9 1 2980 S POS TARG 0.6544, 0.6796 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F225W none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F225W none none none none 2 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 14] Visit: 13 (F469N-2) Visit Requirements: SCHED 100%; SAME ORIENT AS 04 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 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.2381, 0.5063; Y S see below GS ACQ SCENARIO BASE1B3 (2559 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.3305, 0.3665 Y S see below (2550 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-116-COP WFC3/UVI ACCUM UVIS2 F469N FLASH=10 1 2980 S POS TARG 0.4232, 0.6644 Y S see below (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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-116-COPY 1 WFC3/UVI ACCUM UVIS2 F469N none none none none 1 2559.0 S S MRK-116-COPY 2 WFC3/UVI ACCUM UVIS2 F469N none none none none 2 2550.0 S S MRK-116-COPY 3 WFC3/UVI ACCUM UVIS2 F469N none none none none 3 2550.0 S S 17129( 40) - 13-Dec-2022 13:35:13 - [ 15] Summary Form for Proposal 17129 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC, UVIS2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=10, FLASH=6, FLASH=9 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, GS ACQ SCENARIO BASE1BE, POS TARG -0.084, 0.082, POS TARG 0.084, 0.143, POS TARG 0.0927, 0.3376, POS TARG 0.168, 0.062, POS TARG 0.1719, 0.1837, POS TARG 0.1851, 0.1978, POS TARG 0.2381, 0.5063, POS TARG 0.3305, 0.3665, POS TARG 0.3437, 0.3674, POS TARG 0.4232, 0.6644, POS TARG 0.4760, 0.5286, POS TARG 0.4760, 0.5352, POS TARG 0.5687, 0.8331, POS TARG 0.6544, 0.6796, POS TARG 0.661, 0.3591, SAME ORIENT AS 01, SAME ORIENT AS 02, SAME ORIENT AS 03, SAME ORIENT AS 04, SAME ORIENT AS 08, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F140LP, F225W, F336W, F438W, F469N ------------------------------------------------------------------------------------------------------------------------------------ Target Names MRK-116, MRK-116-COPY ------------------------------------------------------------------------------------------------------------------------------------