16462( 9) - 11-Oct-2021 14:33:17 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16462 Version: 9 Check-in Time: 11-Oct-2021 14:33:17 STScI Edit Number: 5 Title Atmospheric characterization of the innermost gas giants in the infant multiplanet system V1298 Tau ------------------------------------------------------------------------------------ Type Cycle GO 28 ------------------------------------------------------------------------------------ Investigators Contact? PI: Mr. Vatsal Panwar Universiteit van Amsterdam Y CoI: Prof. Jean-Michel Desert Universiteit van Amsterdam Y CoI: Mr. Bob Jacobs Universiteit van Amsterdam N CoI: Prof. Jacob L. Bean University of Chicago N CoI: Dr. Trevor David American Museum of Natural History N CoI: Dr. John Livingston University of Tokyo, Institute of N Astronomy CoI: Dr. Lorenzo Pino INAF - Osservatorio Astrofisico di Arcetri N CoI: Dr. Kamen Todorov Universiteit van Amsterdam N CoI: Dr. Michael Line Arizona State University N CoI: Ms. Niloofar Khorshid Universiteit van Amsterdam N CoI: Ms. Claire Baxter Universiteit van Amsterdam N CoI: Dr. Antonija Oklopcic Universiteit van Amsterdam N ------------------------------------------------------------------------------------ Abstract The newborn planetary system comprising of four gas giants transiting the bright 23 Myr old star V1298 Tau presents an exciting opportunity to probe the atmospheric properties of planetary systems immediately post-formation, and to do so within one system. We propose to observe a transit of the hottest gas giant in the system, V1298 Tau c, using the HST/WFC3/G141 grism, to measure the strength of water absorption features. The NIR transmission spectrum of this hot Neptune planet will be used to constrain its metallicity and cloud or haze coverage, which in turns will inform planet formation and evolution models. In conjunction with the previous WFC3/G141 observations of the warm gas giant V1298 Tau b in the system, our observations will enable comparative exoplanetology of planets within a multiplanet system fresh after formation. When put in the context of directly imaged planets at wider orbital separations but similar age as the V1298 Tau system, the inferences from our comparative study of a close-in multiplanet system will put constraints on the effect of insolation and location in the planet-forming disks on the bulk planetary composition and properties. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will observe V1298 Tau c during a transit of the planet using time series spectroscopy with WFC3/G141 in drift scan mode. The planet b exhibit 30 mins TTV, and 12 mins uncertainty on mid-transit times by the end of 2022. We currently have a restrictive phase constraint (+/-30mins) starting 3 HST orbits before primary transit and ending 1-2 orbits after transit. The 16462( 9) - 11-Oct-2021 14:33:17 - [ 2] observing start window is relaxed (60 minutes) to ensure we cover properly the transit. This observing window could be relaxed more to enable as many observing opportunities as possible. We plan to get updated ephemeris by the end of the year which will help constraining the TTVs. We will collect data with the WFC3/IR camera configuration in the spectroscopic scanning mode with the G141 grism. This will provide us with a high quality transit spectrum of our target in the 1.1-1.65 micron region. In order to achieve our science goals, we require high sensitivity. Since the target star is bright (H = 8.19), we will employ the bi-directional spatial scanning mode for WFC3 in order to maximize the photon-collecting efficiency and the duty cycle of the telescope. In order to maximize the duty cycle of the telescope and estimate the signal-to-noise of our observations, we use the PandExo HST open source tool. This approach allows us to maximize the duty cycle (not including occultation by Earth) to 65%, while avoiding mid-orbit buffer dumps. We will use NSAMP = 5 and SAMP_SEQ = SPARS25. We use GRISM256 aperture to limit interference from nearby bright stars. The exposure time calculations result in optimal scan rate of 0.230 "/s, resulting in scan heights of 170 pixels (21"). This observation is time critical - it will only work if the target star is observed for the duration of the entire transit, plus out-of-transit baselines before and after transit. To ensure adequate coverage of the unusually long transit, we will observe the light curve for 10 HST orbits. The transit duration is 4.66 hours, and will allow 4 hours for pre-ingress and post-egress baselines. ------------------------------------------------------------------------------------ 16462( 9) - 11-Oct-2021 14:33:17 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 V-V1298-TAU STAR, EXTRA-SOLAR RA=04H05M19.5970S, J2000 V = 10.12 H=8.191 PLANET, EXTRA-SOLAR DEC=+20D09'25.31" PLANETARY SYSTEM, K V-IV, T TAURI STAR Reference Frame: Other: SIMBAD Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database.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 3.712731804600008E-4 -0.016077000032055366 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 16462( 9) - 11-Oct-2021 14:33:17 - [ 4] Visit: 01 (V1298 Tau c transit) Visit Requirements: SCHED 100%; Period 8.249141 D AND ZERO-PHASE HJD2457064.281606 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 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; PHASE CUM S) 0.9630 TO 0.9681; SEQ 1-3 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0 CUM S) ------------------------------------------------------------------------------------------------------------------------------------ 3 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 4 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 4-6 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 5 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 6 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ 7 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 7-9 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 8 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 9 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ 10 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 10-12 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 11 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 16462( 9) - 11-Oct-2021 14:33:17 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 12 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ 13 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 13-15 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 14 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 15 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ 16 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 16-18 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 17 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 18 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ 19 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 19-21 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 20 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 21 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ 22 V-V1298-TAU WFC3/IR MULTIAC GRISM256 F126N NSAMP=2, SAMP-SEQ=RAPID 1 DEF (0.556 POS TARG 0, 0; SEQ 22-24 CUM S) NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 23 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 9 DEF POS TARG 0, -12; SPATIAL CUM (1613.915 SCAN 0.23, 90.0 Degrees, S) Round trip ------------------------------------------------------------------------------------------------------------------------------------ 24 V-V1298-TAU WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=3 1 DEF (44.97 POS TARG 0, -12; SPATIAL CUM S) SCAN 0.23, 90.0 Degrees, Forward 16462( 9) - 11-Oct-2021 14:33:17 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 1 WFC3/IR MULTIAC GRISM256 F126N none none none none 1 N/A CUM V-V1298-TAU 2 WFC3/IR MULTIAC GRISM256 G141 none none none none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 1 N/A CUM V-V1298-TAU 3 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 1 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 4 WFC3/IR MULTIAC GRISM256 F126N none none none none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 2 N/A CUM V-V1298-TAU 5 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 2 N/A CUM V-V1298-TAU 6 WFC3/IR MULTIAC GRISM256 G141 none none none none 2 N/A CUM V-V1298-TAU 7 WFC3/IR MULTIAC GRISM256 F126N none none none none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 3 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 3 N/A CUM V-V1298-TAU 8 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 3 N/A CUM V-V1298-TAU 9 WFC3/IR MULTIAC GRISM256 G141 none none none none 3 N/A CUM V-V1298-TAU 10 WFC3/IR MULTIAC GRISM256 F126N none none none none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 4 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 4 N/A CUM V-V1298-TAU 11 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 4 N/A CUM V-V1298-TAU 12 WFC3/IR MULTIAC GRISM256 G141 none none none none 4 N/A CUM V-V1298-TAU 13 WFC3/IR MULTIAC GRISM256 F126N none none none none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 5 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 5 N/A CUM V-V1298-TAU 14 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 5 N/A CUM V-V1298-TAU 15 WFC3/IR MULTIAC GRISM256 G141 none none none none 5 N/A CUM V-V1298-TAU 16 WFC3/IR MULTIAC GRISM256 F126N none none none none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 6 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 11] 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 6 N/A CUM V-V1298-TAU 17 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 6 N/A CUM V-V1298-TAU 18 WFC3/IR MULTIAC GRISM256 G141 none none none none 6 N/A CUM V-V1298-TAU 19 WFC3/IR MULTIAC GRISM256 F126N none none none none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 7 N/A CUM V-V1298-TAU 20 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 7 N/A CUM V-V1298-TAU 21 WFC3/IR MULTIAC GRISM256 G141 none none none none 7 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-V1298-TAU 22 WFC3/IR MULTIAC GRISM256 F126N none none none none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 8 N/A CUM V-V1298-TAU 23 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 8 N/A CUM V-V1298-TAU 24 WFC3/IR MULTIAC GRISM256 G141 none none none none 8 N/A CUM 16462( 9) - 11-Oct-2021 14:33:17 - [ 13] Summary Form for Proposal 16462 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures GRISM256 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=2, NSAMP=3, NSAMP=5, SAMP-SEQ=RAPID, SAMP-SEQ=SPARS25 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PHASE 0.9630 TO 0.9681, POS TARG 0, -12, POS TARG 0, 0, Period 8.249141 D AND ZERO-PHASE HJD2457064.281606, SCHED 100%, SEQ 1-3 NON-INT, SEQ 10-12 NON-INT, SEQ 13-15 NON-INT, SEQ 16-18 NON-INT, SEQ 19-21 NON-INT, SEQ 22-24 NON-INT, SEQ 4-6 NON-INT, SEQ 7-9 NON-INT, SPATIAL SCAN 0.23, 90.0 Degrees, Forward, SPATIAL SCAN 0.23, 90.0 Degrees, Round trip ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F126N, G141 ------------------------------------------------------------------------------------------------------------------------------------ Target Names V-V1298-TAU ------------------------------------------------------------------------------------------------------------------------------------