14918( 5) - 27-Jun-2017 17:00:28 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14918 Version: 5 Check-in Time: 27-Jun-2017 17:00:28 STScI Edit Number: 2 Title Definitive measurement of WASP-17b's water abundance in preparation for JWST ------------------------------------------------------------------------------------ Type Cycle GO 24 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Hannah Ruth Wakeford Space Telescope Science Institute Y CoI: Dr. Nikole K Lewis Space Telescope Science Institute N CoI: Dr. Tiffany Kataria Jet Propulsion Laboratory N CoI: Natasha Batalha The Pennsylvania State University N CoI: Prof. David Kent Sing University of Exeter N CoI: Dr. Mark Clampin NASA Goddard Space Flight Center N ------------------------------------------------------------------------------------ Abstract In the advent of JWST, understanding of exoplanet atmospheres with current facilities will be critical. Here we propose to measure the transmission spectrum of WASP-17b in the near-infrared with both spectroscopic grisms of WFC3. Early HST and Spitzer surveys have shown WASP-17b to have the clearest atmosphere of any measured exoplanet so far, making it an important archetype hot Jupiter. As such, WASP-17b has been selected as a Hot-Jupiter archetype for detailed study through the JWST GTO program (PI Mountain/Clampin). Higher SNR observations, made possible through spatial scanning, of this key target in the HST WFC3 wavelength range will provide critical guidance and a point for comparison for the upcoming JWST observations. The existing WFC3 data was gathered before the revolutionary spacial scanning technique, and thus the observed H2O feature suffers from extremely large errors (factor of ~5X higher) even though WASP-17b remains the very best target for transmission spectroscopy. These observations combined with previous and future observations will allow us to accurately constrain the atmospheric water amplitude and abundance to high precision. ------------------------------------------------------------------------------------ Observations Description ------------------------ Our HST observations will proide a transmission spectrum for the transiting exoplanet WASP-17b across the 0.8-1.7 micron wavelength range. WASP-17b is a highly inflated exoplanet, and is extremely amenable to atmospheric studies with HST and JWST. These observations with the G102 and G141 grisms in spatial scan mode will allow us to constrain the H2O abundance for this clear exoplanet atmosphere and better prepare us for the planned JWST GTO observations of this primed exoplanet target. For both WFC3 observations, we will use the forward spatial scanning mode using SPARS=25 and NSAMP=7. We will read out a subarray size of 256 pixels to reduce overheads. G102: we will use a scan rate of 0.0264 arcsec/sec, giving individual exposure times of 134 seconds, resulting in a scan across 3.5 arcsec = 27 pixels per 14918( 5) - 27-Jun-2017 17:00:28 - [ 2] exposure. This will leave plenty of room on the detector to estimate the background flux. G141: we will use a scan rate of 0.033 arcsec/sec, giving individual exposure times of 134 sec, resulting in a scan across 4.422 arcsec = 35 pixels per exposure. This will leave plenty of room on the detector to estimate the background flux. ------------------------------------------------------------------------------------ 14918( 5) - 27-Jun-2017 17:00:28 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 WASP-17 STAR, EXTRA-SOLAR RA=15H59M50.9470S, J2000 V = 11.59 PLANET DEC=-28D03'42.33" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 -5.968292961788344E-4 -0.011 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 14918( 5) - 27-Jun-2017 17:00:28 - [ 4] Visit: 01 (W17 G141) Visit Requirements: Period 3.7354822692 D AND ZERO-PHASE HJD2457192.69798 On Hold Comments: Additional Comments: WFC3 G141 IR transit of WASP-17. It is essential that the five orbits be scheduled in a coninuous block, preferably free of the SAA as the planet has a long transit. We will use the spatial scanning mode to lengthen the spectrum along the detector during the exposures, to avoid saturation on relatively long exposures. This mode also greatly increases the efficiency. 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 WASP-17 WFC3/IR MULTIAC GRISM256 F139M SAMP-SEQ=RAPID, NSAMP=7 1 DEF (1.945 PHASE 0.951 TO 0.955; CUM S) SEQ 1-2 NON-INT Comments: Direct image for wavelegnth calibration. Phase constrained so transit occurs between 2nd and 3rd contact. ------------------------------------------------------------------------------------------------------------------------------------ 2 WASP-17 WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=7 12 DEF SPATIAL SCAN 0.033, CUM (1612.249 270.0 Degrees, Forward S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WASP-17 WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.033, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 3 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 WASP-17 WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.033, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 5 WASP-17 WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.033, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 6 WASP-17 WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=7 13 DEF SPATIAL SCAN 0.033, CUM (1746.603 270.0 Degrees, Forward; S) SEQ 6 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 1 WFC3/IR MULTIAC GRISM256 F139M none none none none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 1 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 10 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 11 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G141 none none 12 none 1 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 10 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 11 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 12 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 13 none 2 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 14 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G141 none none 15 none 2 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 10 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 11 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 12 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 13 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 14 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G141 none none 15 none 3 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 4 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 10 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 11 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 12 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 13 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 14 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G141 none none 15 none 4 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 10 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 11 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 12 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G141 none none 13 none 5 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 8] Visit: 02 (W17 G102) Visit Requirements: Period 3.7354822692 D AND ZERO-PHASE HJD2457192.69798 On Hold Comments: Additional Comments: WFC3 G102 IR transit of WASP-17. It is essential that the five orbits be scheduled in a coninuous block, preferably free of the SAA as the planet has a long transit. We will use the spatial scanning mode to lengthen the spectrum along the detector during the exposures, to avoid saturation on relatively long exposures. This mode also greatly increases the efficiency. 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 WASP-17 WFC3/IR MULTIAC GRISM256 F139M NSAMP=7, SAMP-SEQ=RAPID 1 DEF (1.945 PHASE 0.951 TO 0.955; CUM S) SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 12 DEF SPATIAL SCAN 0.0264, CUM (1612.249 270.0 Degrees, Forward S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.0264, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 3 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.0264, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 5 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.0264, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 6 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 13 DEF SPATIAL SCAN 0.0264, CUM (1746.603 270.0 Degrees, Forward; S) SEQ 6 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 1 WFC3/IR MULTIAC GRISM256 F139M none none none none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 1 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 1 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 14 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 15 none 2 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 14 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 15 none 3 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 4 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 14 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 15 none 4 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 5 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 12] Visit: 32 (W17 G102) Visit Requirements: Period 3.7354822692 D AND ZERO-PHASE HJD2457192.69798 On Hold Comments: Additional Comments: WFC3 G102 IR transit of WASP-17. It is essential that the five orbits be scheduled in a coninuous block, preferably free of the SAA as the planet has a long transit. We will use the spatial scanning mode to lengthen the spectrum along the detector during the exposures, to avoid saturation on relatively long exposures. This mode also greatly increases the efficiency. 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 WASP-17 WFC3/IR MULTIAC GRISM256 F139M NSAMP=7, SAMP-SEQ=RAPID 1 DEF (1.945 PHASE 0.951 TO 0.955; CUM S) SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 12 DEF SPATIAL SCAN 0.0264, CUM (1612.249 270.0 Degrees, Forward S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.0264, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 3 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 4 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.0264, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 5 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 15 DEF SPATIAL SCAN 0.0264, CUM (2015.311 270.0 Degrees, Forward; S) SEQ 5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 6 WASP-17 WFC3/IR MULTIAC GRISM256 G102 SAMP-SEQ=SPARS25, NSAMP=7 13 DEF SPATIAL SCAN 0.0264, CUM (1746.603 270.0 Degrees, Forward; S) SEQ 6 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 1 WFC3/IR MULTIAC GRISM256 F139M none none none none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 1 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 1 N/A CUM WASP-17 2 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 1 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 14 none 2 N/A CUM WASP-17 3 WFC3/IR MULTIAC GRISM256 G102 none none 15 none 2 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 14] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 14 none 3 N/A CUM WASP-17 4 WFC3/IR MULTIAC GRISM256 G102 none none 15 none 3 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 4 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 14 none 4 N/A CUM WASP-17 5 WFC3/IR MULTIAC GRISM256 G102 none none 15 none 4 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 1 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 2 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 3 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 4 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 5 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 6 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 7 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 8 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 9 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 10 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 11 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 12 none 5 N/A CUM WASP-17 6 WFC3/IR MULTIAC GRISM256 G102 none none 13 none 5 N/A CUM 14918( 5) - 27-Jun-2017 17:00:28 - [ 16] Summary Form for Proposal 14918 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures GRISM256 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=7, SAMP-SEQ=RAPID, SAMP-SEQ=SPARS25 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PHASE 0.951 TO 0.955, Period 3.7354822692 D AND ZERO-PHASE HJD2457192.69798, SEQ 1-2 NON-INT, SEQ 3 NON-INT, SEQ 4 NON-INT, SEQ 5 NON-INT, SEQ 6 NON-INT, SPATIAL SCAN 0.0264, 270.0 Degrees, Forward, SPATIAL SCAN 0.033, 270.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F139M, G102, G141 ------------------------------------------------------------------------------------------------------------------------------------ Target Names WASP-17 ------------------------------------------------------------------------------------------------------------------------------------