17265( 4) - 19-Dec-2022 15:28:57 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17265 Version: 4 Check-in Time: 19-Dec-2022 15:28:57 STScI Edit Number: 1 Title Shutter Timing Jitter and FLASH with WFC3 UVIS grism ------------------------------------------------------------------------------------ Type Cycle CAL/WFC3 30 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Peter McCullough Space Telescope Science Institute Y CoI: Ky Huynh Space Telescope Science Institute Y ------------------------------------------------------------------------------------ Abstract We use observations of a stable star with the WFC3 UVIS G280 grism in order to measure the following: 1) measure the UVIS shutter's timing jitter, i.e. the non-repeatability of a commanded exposure time due to the vagaries of the mechanical shutter mechanism (current best estimates are 0.004s rms or 0.006s rms); 2) validate if FLASH is important for very bright stellar spectrophotometric time series with G280; and 3) test effects of shutter BLADE (A or B) for the same. ------------------------------------------------------------------------------------ Observations Description ------------------------ The design of this 1-HST-orbit calibration program is as follows: (Note added 12.07.2022: Program 17265's Visit 01 missed the target in the G280 exposures on 11.21.2022 because the POSTARG Y = -50 was omitted, apparently because we had used as a template Program 17082's Visit 05 which failed on 11.23.2022 for the same reason. We have reviewed our error, copied Visit 01 to Visit 02, changed the POSTARG Y to -50 in all G280 exposures, and swapped the target from HR-7596 (V=5.63, A0III) to HR-5501 (V=5.665, B9.5V); the former's availability ended 11/30 and the latter's begins 12/24.) We observe a bright and stable star with G280 grism in order to spread its light out so we can get good spectrophotometric precision in very short exposures so we can measure the shutter timing jitter, i.e. the non-repeatability of a commanded exposure time due to the vagaries of the mechanical shutter mechanism. We use a subarray to capture the ROI of the +1 and -1 orders of G280 simultaneously. The latter provides approximately 3x dynamic range because the +1 order has ~3x greater throughput than the -1 order; this will allow us to observe the star well into saturation to determine if good spectrophotometry can be obtained even while saturating the spectrum, and bleeding charge. We select spectrophotometric standard stars from the references below, looking for ones with V=6, type = A0V. If our primary target HR-7596 cannot be used for some reason, we have identified four other similar targets. We use a custom subarray, centered on the zeroth order of G280 spectrum. The subarray parameters have been tested in GO programs 16086 and others. Here, we choose a smaller but adequate SIZEAXIS2=340 to allow us to buffer dump at the 17265( 4) - 19-Dec-2022 15:28:57 - [ 2] end during Earth occultation. We test whether FLASH=20 (following the approach adopted in GO 16086 and discussed in the Instrument Science Report WFC3 2021-09) is useful or not with the 2s exposures in the second half of the orbit. The specific value of FLASH=20 is the one recommended by the ETC. The 2s exposure is chosen to optimally expose (but not saturate) the -1 order and also to be long enough that shutter timing jitter will be a small effect. We needed to use a different filter than in GO 16086 to avoid saturating the ACQ REF direct image. The first exposure will be with shutter BLADE=A in order to know which shutter BLADE each exposure is: A, B, A, B, .... We make all exposures in pairs so we will get BLADE=A and BLADE=B, one after the other, for each and every configuration. 2 ACQ exposures, one with FLASH and the other without FLASH; The second one also assures that each of the following series start with BLADE=A. Six exposures in series of 0.5s, 0.7s, 1s, and 4s, then twenty exposures ( five sets of four 2s exposures), as follows do i=1, 5 { 2sA 2sB 2sAFLASH 2sBFLASH } The 2s exposures are interlaced FLASH, NO FLASH, FLASH, NO FLASH so that any environmental changes, e.g. scattered light will be similar throughout each series. ETC runs are listed only for the 1s G280 exposure and the 0.5s F280N direct image for ACQ. References: https://www2.keck.hawaii.edu/inst/esi/flux_stds.html https://www2.keck.hawaii.edu/inst/common/stone_stds_hst.html https://www.eso.org/sci/observing/tools/standards/spectra/stanlis.html ------------------------------------------------------------------------------------ 17265( 4) - 19-Dec-2022 15:28:57 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD-185603 STAR, A0-A3 V-IV RA=19H38M38.7390S, J2000 V = 7.58 DEC=+31D13'9.12" Reference Frame: Other: SIMBAD 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 2.456372437434589E-4 -0.006264999910854385 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 4 HR-1544 CALIBRATION, RA=04H50M36.7245S, J2000 V = 4.35 PHOTOMETRIC DEC=+08D54'0.19" Reference Frame: Other: SIMBAD 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 9.514557879479864E-5 -0.02991000005749811 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 5 HR-4468 CALIBRATION, RA=11H36M40.8511S, J2000 V = 4.673 PHOTOMETRIC DEC=-09D48'8.05" Reference Frame: Other: SIMBAD 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 -0.004017314421648906 0.0025499999999999997 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 HR-5501 CALIBRATION, RA=14H45M30.1643S, J2000 V = 5.665 PHOTOMETRIC DEC=+00D43'2.05" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Picked it from the following list, looking for a star close to type A0 and B=6 mag. https://www.eso.org/sci/observing/tools/standards/spectra/s tanlis.html Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 -0.0025940032426080024 -0.008231000060732185 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 6 HR-7596 CALIBRATION, RA=19H54M44.8358S, J2000 V = 5.631 PHOTOMETRIC DEC=+00D16'24.84" Reference Frame: Other: SIMBAD 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 0.002643830135691765 -0.013766000051873561 0.0 17265( 4) - 19-Dec-2022 15:28:57 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 17265( 4) - 19-Dec-2022 15:28:57 - [ 5] Visit: 01 (UVIS test 1) Visit Requirements: 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 HR-7596 WFC3/UVI ACCUM G280-REF F280N SIZEAXIS1=2250, SIZEAXIS2=340, 1 0.5 S (0.5 POS TARG null, -50; SEQ S CENTERAXIS1=2136, S) 1-16 NON-INT CENTERAXIS2=1216, BLADE=A, FLASH=20 Comments: Two exposures in series: BLADE=A with FLASH and BLADE=B with no FLASH. ------------------------------------------------------------------------------------------------------------------------------------ 2 HR-7596 WFC3/UVI ACCUM G280-REF F280N SIZEAXIS1=2250, SIZEAXIS2=340, 1 0.5 S (0.5 POS TARG null, -50 S CENTERAXIS1=2136, S) CENTERAXIS2=1216 ------------------------------------------------------------------------------------------------------------------------------------ 3 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 0.5 S (3 S CENTERAXIS2=1216, S) SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 4 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 0.7 S (4.2 S CENTERAXIS2=1216, S) SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 5 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 1 S (6 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 6 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 4 S (24 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 17265( 4) - 19-Dec-2022 15:28:57 - [ 6] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 7 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 8 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 9 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 10 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 11 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 12 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 17265( 4) - 19-Dec-2022 15:28:57 - [ 7] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 13 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 14 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 15 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 16 HR-7596 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HR-7596 1 WFC3/UVI ACCUM G280-REF F280N none none none none 1 N/A S HR-7596 2 WFC3/UVI ACCUM G280-REF F280N none none none none 1 N/A S HR-7596 3 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 3 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 3 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S 17265( 4) - 19-Dec-2022 15:28:57 - [ 8] 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 | ------------------------------------------------------------------------------------------------------------------------------------ HR-7596 3 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-7596 3 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-7596 3 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-7596 4 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 4 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 4 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S HR-7596 4 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-7596 4 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-7596 4 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-7596 5 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 5 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 5 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S HR-7596 5 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-7596 5 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-7596 5 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-7596 6 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 6 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 6 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S HR-7596 6 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-7596 6 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-7596 6 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-7596 7 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 7 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 8 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S 17265( 4) - 19-Dec-2022 15:28:57 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ HR-7596 8 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 9 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 9 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 10 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 10 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 11 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 11 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 12 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 12 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 13 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 13 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 14 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 14 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 15 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 15 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-7596 16 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-7596 16 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S 17265( 4) - 19-Dec-2022 15:28:57 - [ 10] Visit: 02 (UVIS test 2) Visit Requirements: BEFORE 31-JAN-2023:00:00:00 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 HR-5501 WFC3/UVI ACCUM G280-REF F280N SIZEAXIS1=2250, SIZEAXIS2=340, 1 0.5 S (0.5 POS TARG null, -50; SEQ S CENTERAXIS1=2136, S) 1-16 NON-INT CENTERAXIS2=1216, BLADE=A, FLASH=20 Comments: Two exposures in series: BLADE=A with FLASH and BLADE=B with no FLASH. ------------------------------------------------------------------------------------------------------------------------------------ 2 HR-5501 WFC3/UVI ACCUM G280-REF F280N SIZEAXIS1=2250, SIZEAXIS2=340, 1 0.5 S (0.5 POS TARG null, -50 S CENTERAXIS1=2136, S) CENTERAXIS2=1216 ------------------------------------------------------------------------------------------------------------------------------------ 3 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 0.5 S (3 POS TARG null, -50 S CENTERAXIS2=1216, S) SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 4 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 0.7 S (4.2 POS TARG null, -50 S CENTERAXIS2=1216, S) SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 5 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 1 S (6 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 6 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 6 4 S (24 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 17265( 4) - 19-Dec-2022 15:28:57 - [ 11] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 7 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 8 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 9 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 10 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 11 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 12 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 17265( 4) - 19-Dec-2022 15:28:57 - [ 12] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 13 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 14 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 15 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 16 HR-5501 WFC3/UVI ACCUM UVIS G280 CENTERAXIS1=2136, 2 2 S (4 S) POS TARG null, -50 S CENTERAXIS2=1216, SIZEAXIS1=2250, SIZEAXIS2=340, FLASH=20 Comments: Detector chip 2. We include FLASH=20, as we anticipate < 1 e- of background per science exposure, in order to ensure maximum CTE. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HR-5501 1 WFC3/UVI ACCUM G280-REF F280N none none none none 1 N/A S HR-5501 2 WFC3/UVI ACCUM G280-REF F280N none none none none 1 N/A S HR-5501 3 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 3 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 3 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S 17265( 4) - 19-Dec-2022 15:28:57 - [ 13] 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 | ------------------------------------------------------------------------------------------------------------------------------------ HR-5501 3 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-5501 3 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-5501 3 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-5501 4 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 4 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 4 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S HR-5501 4 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-5501 4 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-5501 4 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-5501 5 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 5 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 5 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S HR-5501 5 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-5501 5 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-5501 5 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-5501 6 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 6 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 6 WFC3/UVI ACCUM UVIS G280 none none 3 none 1 N/A S HR-5501 6 WFC3/UVI ACCUM UVIS G280 none none 4 none 1 N/A S HR-5501 6 WFC3/UVI ACCUM UVIS G280 none none 5 none 1 N/A S HR-5501 6 WFC3/UVI ACCUM UVIS G280 none none 6 none 1 N/A S HR-5501 7 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 7 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 8 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S 17265( 4) - 19-Dec-2022 15:28:57 - [ 14] 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 | ------------------------------------------------------------------------------------------------------------------------------------ HR-5501 8 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 9 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 9 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 10 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 10 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 11 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 11 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 12 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 12 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 13 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 13 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 14 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 14 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 15 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 15 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S HR-5501 16 WFC3/UVI ACCUM UVIS G280 none none 1 none 1 N/A S HR-5501 16 WFC3/UVI ACCUM UVIS G280 none none 2 none 1 N/A S 17265( 4) - 19-Dec-2022 15:28:57 - [ 15] Summary Form for Proposal 17265 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures G280-REF, UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BLADE=A, CENTERAXIS1=2136, CENTERAXIS2=1216, FLASH=20, SIZEAXIS1=2250, SIZEAXIS2=340 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BEFORE 31-JAN-2023:00:00:00, POS TARG null, -50, SEQ 1-16 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F280N, G280 ------------------------------------------------------------------------------------------------------------------------------------ Target Names HR-5501, HR-7596 ------------------------------------------------------------------------------------------------------------------------------------