18114( 5) - 25-Nov-2025 20:19:28 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 18114 Version: 5 Check-in Time: 25-Nov-2025 20:19:28 STScI Edit Number: 1 Title Unveiling Hidden Protoplanets: Direct Extinction Measurement at Optical Wavelengths in the Planet-Formed Gap of AS209 ------------------------------------------------------------------------------------ Type Cycle GO 33 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Gabriele Cugno Universitat Zurich Y CoI: Prof. Stefano Facchini Universita di Milano N CoI: Prof. Richard Teague Massachusetts Institute of Technology N CoI: Dr. Myriam Benisty Max Planck Institute for Astronomy N CoI: Dr. Jaehan Bae University of Florida N CoI: Dr. Felipe Mauricio Alarcon Universita di Milano N CoI: Dr. Yifan Zhou The University of Virginia N CoI: Dr. Laurent Pueyo Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract While disk substructures provide compelling indirect evidence for the presence of accreting protoplanets, direct detections remain frustratingly scarce and extinction by circumstellar and circumplanetary dust is often invoked as an explanation. AS 209bkg, a background star shining through the outer gap of the well-studied disk around AS 209, offers a unique opportunity to test this hypothesis. By performing transmission spectroscopy of AS 209bkg, we can directly measure the extinction caused by dust in a planet-forming disk gap for the first time. Existing data constrain the extinction at wavelengths longer than 1 um, but the extinction solutions diverge at shorter wavelengths. This is a critical spectral region for the search for protoplanets, as most searches for accretion signatures target the Halpha line at 0.656um - right where extinction may be strongest. We propose to use the imaging capabilities of WFC3 in three filters spanning 0.8-1.2um to detect AS 209bkg and measure the wavelength dependence of extinction across this key range. Our results will provide the first empirical calibration of optical dust attenuation in disk gaps and will directly inform the interpretation of low-yield Halpha imaging surveys, helping determine whether elusive protoplanets are truly missing or simply veiled in dust. ------------------------------------------------------------------------------------ Observations Description ------------------------ The primary goal of our observations is to use the direct-imaging technique to detect a background star shining through the disk gap in the AS209 system. We will observe AS209 using WFC3/UVIS and WFC3/IR with the F814W, F098M and F125W filters for 8, 2 and 2 consecutive orbits. We will use the UVIS2-C512C-SUB IRSUB256-FIX subarrays to reduce readout time and improve observing efficiency. The images will be taken using a box dithering pattern with a dithering distance of 0.02 and 0.065 arcsec (0.5 pixels) for UVIS and IR on both sides. This will allow reconstructing Nyquist-sampled images, which are necessary for the post-processing of high-contrast images. At each dithering position, several copies of exposures will be taken. The exposure time and iteration numbers are determined to maximize the point spread function signal to noise 18114( 5) - 25-Nov-2025 20:19:28 - [ 2] ratio, avoid saturation and maximize the usage of orbital visibility. Every visit contains one orbit. Observations are linked by timing requirements and will be executed continuously. To facilitate two-roll angular differential imaging, the second visit will have a 25 to 35 (80 to 100) degrees difference in telescope orientation for UVIS (IR) compared to those of the previous visit. For UVIS, every second visit will have the same orientation as two visits before. The orientation constraints ensure that in no visit the background star's signal (PA 110 deg) coincides with the position of one of the PSF spike. Based on suggestions from STScI and the contact scientist on a similar program executed during the past cycles, we switch on the FLASH and set the level to 20 to mitigate the CTE loss. ------------------------------------------------------------------------------------ 18114( 5) - 25-Nov-2025 20:19:28 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 EM-AS-209 STAR, K V-IV, RA=16H49M15.3035S, J2000 V = 11.28 PROTOPLANETARY DISK DEC=-14D22'8.64" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -5.069246460083093E-4 -0.02365800007737562 0.0082477 ------------------------------------------------------------------------------------------------------------------------------------ 18114( 5) - 25-Nov-2025 20:19:28 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.02 Line_Spacing 0.02 Coordinate_Frame POS-TARG Pattern_Orient 0 Angle_Between_Sides 90 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.065 Line_Spacing 0.0605 Coordinate_Frame POS-TARG Pattern_Orient 0 Angle_Between_Sides 90 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 18114( 5) - 25-Nov-2025 20:19:28 - [ 5] Visit: 01 (AS209 - F814W) Visit Requirements: ORIENT 75D TO 110 D; ORIENT 165D TO 200 D; ORIENT 255D TO 290 D; ORIENT 345D TO 20 D; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 7] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 8] Visit: 02 (AS209 - F814W) Visit Requirements: ORIENT 25D TO 35D FROM 01; AFTER 01 BY 0.5 Orbits TO 1.5 Orbits; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 10] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 11] Visit: 03 (AS209 - F814W) Visit Requirements: ORIENT 75D TO 110 D; ORIENT 165D TO 200 D; ORIENT 255D TO 290 D; ORIENT 345D TO 20 D; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 12] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 14] Visit: 04 (AS209 - F814W) Visit Requirements: ORIENT 25D TO 35D FROM 03; AFTER 03 BY 0.5 Orbits TO 1.5 Orbits; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 15] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 16] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 17] Visit: 05 (AS209 - F814W) Visit Requirements: ORIENT 75D TO 110 D; ORIENT 165D TO 200 D; ORIENT 255D TO 290 D; ORIENT 345D TO 20 D; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 18] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 19] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 20] Visit: 06 (AS209 - F814W) Visit Requirements: ORIENT 25D TO 35D FROM 05; AFTER 05 BY 0.5 Orbits TO 1.5 Orbits; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 21] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 22] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 23] Visit: 07 (AS209 - F814W) Visit Requirements: ORIENT 75D TO 110 D; ORIENT 165D TO 200 D; ORIENT 255D TO 290 D; ORIENT 345D TO 20 D; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 24] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 25] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 26] Visit: 08 (AS209 - F814W) Visit Requirements: ORIENT 25D TO 35D FROM 07; AFTER 07 BY 0.5 Orbits TO 1.5 Orbits; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=20 9 1.5 S (54 PATTERN 1 1 S 2C-SUB S) Comments: The exposure time to reach saturation is estimated to be 0.8 seconds. Given the large separation of the candidate, we plan to observe with exposures of 1.0 s, slightly saturating the PSF core. This will not affect our ability to center the image, as we can use the PSF spikes for that. This has been shown in past works on UVIS data. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 2 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 27] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 8 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none 9 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 1 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 2 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 3 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 4 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 5 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 6 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 7 none 1 N/A S 12C-SUB EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 8 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 28] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none 9 none 1 N/A S 12C-SUB 18114( 5) - 25-Nov-2025 20:19:28 - [ 29] Visit: 09 (AS209 - F125W) Visit Requirements: ORIENT 75D TO 110 D; ORIENT 165D TO 200 D; ORIENT 255D TO 290 D; ORIENT 345D TO 20 D; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/IR MULTIAC IRSUB256- F125W NSAMP=6, SAMP-SEQ=RAPID 21 DEF PATTERN 2 1 CUM FIX (140.019 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 15 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 30] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 18 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 21 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 18 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 31] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 21 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 18 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 21 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 32] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 18 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 21 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 33] Visit: 10 (AS209 - F125W) Visit Requirements: ORIENT 25D TO 35D FROM 09; AFTER 09 BY 0.5 Orbits TO 1.5 Orbits; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/IR MULTIAC IRSUB256- F125W NSAMP=6, SAMP-SEQ=RAPID 21 DEF PATTERN 2 1 CUM FIX (140.019 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 15 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 34] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 18 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 1 none 21 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 18 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 35] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 2 none 21 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 18 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 3 none 21 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 36] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 18 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 19 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 20 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F125W 4 none 21 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 37] Visit: 11 (AS209 - F098M) Visit Requirements: ORIENT 75D TO 110 D; ORIENT 165D TO 200 D; ORIENT 255D TO 290 D; ORIENT 345D TO 20 D; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/IR MULTIAC IRSUB256- F098M NSAMP=9, SAMP-SEQ=RAPID 17 DEF PATTERN 2 1 CUM FIX (170.023 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 15 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 38] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 5 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 39] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 12 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 40] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 17 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 41] Visit: 12 (AS209 - F098M) Visit Requirements: ORIENT 25D TO 35D FROM 11; AFTER 11 BY 0.5 Orbits TO 1.5 Orbits; BEFORE 31-OCT-2026:00:00:00 On Hold Comments: Additional Comments: The orientation requirements are meant to avoid the PSF spikes to end up at the position of the background source, which is located at a position angle of ~110 deg East of North. 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 EM-AS-209 WFC3/IR MULTIAC IRSUB256- F098M NSAMP=9, SAMP-SEQ=RAPID 17 DEF PATTERN 2 1 CUM FIX (170.023 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 15 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 42] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 1 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 2 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 5 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 43] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 12 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 3 none 17 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 1 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 2 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 3 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 4 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 5 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 6 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 7 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 8 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 9 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 10 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 11 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 12 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 44] 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 | ------------------------------------------------------------------------------------------------------------------------------------ EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 13 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 14 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 15 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 16 none 1 N/A CUM -FIX EM-AS-209 1 WFC3/IR MULTIAC IRSUB256 F098M 4 none 17 none 1 N/A CUM -FIX 18114( 5) - 25-Nov-2025 20:19:28 - [ 45] Summary Form for Proposal 18114 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IRSUB256-FIX, UVIS2-C512C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=20, NSAMP=6, NSAMP=9, SAMP-SEQ=RAPID ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01 BY 0.5 Orbits TO 1.5 Orbits, AFTER 03 BY 0.5 Orbits TO 1.5 Orbits, AFTER 05 BY 0.5 Orbits TO 1.5 Orbits, AFTER 07 BY 0.5 Orbits TO 1.5 Orbits, AFTER 09 BY 0.5 Orbits TO 1.5 Orbits, AFTER 11 BY 0.5 Orbits TO 1.5 Orbits, BEFORE 31-OCT-2026:00:00:00, ORIENT 165D TO 200 D, ORIENT 255D TO 290 D, ORIENT 25D TO 35D FROM 01, ORIENT 25D TO 35D FROM 03, ORIENT 25D TO 35D FROM 05, ORIENT 25D TO 35D FROM 07, ORIENT 25D TO 35D FROM 09, ORIENT 25D TO 35D FROM 11, ORIENT 345D TO 20 D, ORIENT 75D TO 110 D, PATTERN 1 1, PATTERN 2 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F098M, F125W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names EM-AS-209 ------------------------------------------------------------------------------------------------------------------------------------