14099( 5) - 03-Nov-2015 18:05:25 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14099 Version: 5 Check-in Time: 03-Nov-2015 18:05:25 STScI Edit Number: 3 Title Measuring the L-T transition for a warm Saturn exoplanet ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Thomas M Evans University of Exeter Y CoI: Prof. David Kent Sing University of Exeter N CoI: Dr. Joanna Barstow University of Oxford N CoI: Dr. Neale Gibson European Southern Observatory - Germany N CoI: Mr. Pascal Tremblin CEA/DSM/MDS N CoI: Dr. Tiffany Kataria University of Exeter N CoI: Dr. Nikolay Nikolov University of Exeter N CoI: Dr. Hannah Ruth Wakeford NASA Goddard Space Flight Center N CoI: Dr. Suzanne Aigrain University of Oxford N ------------------------------------------------------------------------------------ Abstract The transition between the L and T spectral types in brown dwarf atmospheres is characterized by a reduction in high-altitude clouds and the appearance of strong methane absorption features. Models predict a similar transition for gas giant atmospheres across the 1000-1200K temperature range. To test this theory, we propose to measure a detailed transmission spectrum for HAT-P-18b, a Saturn-mass gas giant with an equilibrium temperature of 850K. Our observations will span the 0.3-1.7 micron wavelength range, with the near-infrared wavelengths allowing us to constrain methane and water absorption, and the optical wavelengths probing alkali metal absorption and high-altitude Rayleigh scattering processes. The latter will allow us to determine whether or not aerosols are present in the atmosphere, addressing a key aspect of atmospheric chemistry. Our measurement for HAT-P-18b will be the first transmission spectrum for a gas giant exoplanet that is predicted to have a high methane abundance, providing unique constraints for atmosphere models. ------------------------------------------------------------------------------------ Observations Description ------------------------ Our observations will provide a near-UV to near-IR transmission spectrum for the transiting exoplanet HAT-P-18b. This broad wavelength coverage will allow us to distinguish between fundamental atmosphere classes: the optical provides leverage for distinguishing between a clear or hazy atmosphere, while the near-IR contains strong CH4 absorption features, providing leverage for distinguishing between an L-type or T-type atmosphere. **Observing strategy: To construct the transmission spectrum, we require three separate transits of HAT-P-18b to be observed: one with STIS+G430L, one with STIS+G750L, and one with WFC3+G141. All observations will be made in spectroscopic mode. The STIS observations will be made with the 52x2 arcsec slit to avoid slit losses. 14099( 5) - 03-Nov-2015 18:05:25 - [ 2] At the start of each visit, a standard phase-constrained acquisition image will be taken. The subsequent observing strategy consists of taking repeated exposures for the duration of the transit, plus time before and after the transit to establish the out-of-transit baseline flux. For the STIS observations, we will use stare mode with individual exposure times of 278 sec. We will read out a subarray size of 128 pixels to reduce overheads (SIZEAXIS2=128). As in our previous Programs 12473 and 11740, we will override the default wavelength calibrations at the end of each exposure (WAVECAL=NO). This is done to improve the duty cycle and to allow the thermal breathing trends to be removed, which is only possible with an un-interrupted photometric time series. A separate wavelength calibration image will be taken at the end of each visit. For the G750L visit, we will also take fringe flat images to correct for fringing longward of ~720 nm. For the WFC3 observations, we will use the forward spatial scanning mode with a scan rate of 0.03 arcsec/sec and individual exposure times of 90 sec (i.e. resulting in a scan across 2.7 arcsec = 20 pixels per exposure). This will leave plenty of room on the detector to estimate the background flux. We will read out a subarray size of 256 pixels to reduce overheads. Each transit of HAT-P-18b lasts for 163 minutes. We therefore require 5 consecutive HST orbits per visit. The first orbit serves to allow the telescope to thermally relax into its new pointing position, which is a standard procedure adopted by all HST exoplanet observations. The remaining orbits will provide good phase coverage during transit, and allow for sufficient time (2 HST orbits - one before transit, one after transit) to establish the baseline stellar flux necessary to accurately measure the transit depth. For both STIS and WFC3, we will obtain 10 exposures per HST orbit, coming to a total of 20 in-transit and 20 out-of-transit exposures for each instrument. **Signal-to-noise estimates: HAT-P-18b is a bright target in the conventional sense (V=12.8mag, J=10.8mag). The challenge with exoplanet transmission spectroscopy is to measure subtle changes in the system brightness across different wavelength channels, via variations in the transit depth. We used the HST Exposure Time Calculator with the observational setup described above to calculate the following SNRs per resolution element per exposure: 112 for G430L, 246 for G750L, and 1059 for G141. Note that the G141 flux will be spread over ~20 pixel columns due to the spatial scan (see above), so there is no risk of saturation. ------------------------------------------------------------------------------------ 14099( 5) - 03-Nov-2015 18:05:25 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HAT-P-18 STAR, EXTRA-SOLAR RA=17H05M23.1510S, J2000 V = 12.8 PLANETARY SYSTEM, K DEC=+33D00'44.97" V-IV Reference Frame: ICRS 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 -0.0016933956743227683 -0.0442 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 14099( 5) - 03-Nov-2015 18:05:25 - [ 4] Visit: 01 Visit Requirements: Period 5.50802888 D AND ZERO-PHASE HJD2456461.06765758 On Hold Comments: Additional Comments: HAT-P-18. G430L. STIS visit. It is essential that the five orbits be scheduled in a coninuous block, free of the SAA. 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 HAT-P-18 STIS/CCD ACQ F28X50LP MIRROR GAIN=4 1 1.5 S (1.5 PHASE 0.9655 TO 0.9680 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 1 120 S (120 SIZEAXIS2=128.0, WAVECAL=NO S) Comments: Short exposure to minimize instrument systematic of first exposure of orbit. Note that it is longer than first exposures in subsequent orbits, due to acquisition overhead and to ensure all time is used. ------------------------------------------------------------------------------------------------------------------------------------ 3 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 8 278 S SIZEAXIS2=128.0, WAVECAL=NO (2224 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 5 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 10 278 S SIZEAXIS2=128.0, WAVECAL=NO (2780 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 7 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 10 278 S SIZEAXIS2=128.0, WAVECAL=NO (2780 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 9 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 10 278 S SIZEAXIS2=128.0, WAVECAL=NO (2780 S) ------------------------------------------------------------------------------------------------------------------------------------ 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 11 HAT-P-18 STIS/CCD ACCUM 52X2 G430L 4300 CR-SPLIT=NO, GAIN=4, 10 278 S SIZEAXIS2=128.0, WAVECAL=NO (2780 S) ------------------------------------------------------------------------------------------------------------------------------------ 12 WAVE STIS/CCD ACCUM 52X0.2 G430L 4300 1 DEF (0 S) Comments: Explicit WAVECAL, auto-waves disabled ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A HAT-P-18 2 STIS/CCD ACCUM 52X2 G430L 4300 none none none none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 1 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 2 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 3 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 4 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 5 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 6 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 7 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G430L 4300 none none 8 none 1 N/A HAT-P-18 4 STIS/CCD ACCUM 52X2 G430L 4300 none none none none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 1 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 2 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 3 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 4 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 5 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 6 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 7 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 8 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 9 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G430L 4300 none none 10 none 2 N/A HAT-P-18 6 STIS/CCD ACCUM 52X2 G430L 4300 none none none none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 1 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 2 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 3 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 4 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 5 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 6 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 7 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 8 none 3 N/A 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 9 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G430L 4300 none none 10 none 3 N/A HAT-P-18 8 STIS/CCD ACCUM 52X2 G430L 4300 none none none none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 1 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 2 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 3 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 4 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 5 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 6 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 7 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 8 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 9 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G430L 4300 none none 10 none 4 N/A HAT-P-18 10 STIS/CCD ACCUM 52X2 G430L 4300 none none none none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 1 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 2 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 3 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 4 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 5 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 6 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 7 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 8 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 9 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G430L 4300 none none 10 none 5 N/A WAVE 12 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none none 5 N/A 14099( 5) - 03-Nov-2015 18:05:25 - [ 7] Visit: 02 Visit Requirements: SCHED 80%; Period 5.50802888 D AND ZERO-PHASE HJD2456461.06765758 On Hold Comments: Additional Comments: HAT-P-18. G750L. STIS visit. It is essential that the five orbits be scheduled in a coninuous block, free of the SAA. 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 HAT-P-18 STIS/CCD ACQ F28X50LP MIRROR GAIN=4 1 1.5 S (1.5 PHASE 0.9655 TO 0.9680; S) SEQ 1-3 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 1 100 S (100 SIZEAXIS2=128.0, WAVECAL=NO S) Comments: Short exposure to minimize instrument systematic of first exposure of orbit. Note that it is longer than first exposures in subsequent orbits, due to acquisition overhead and to ensure all time is used. ------------------------------------------------------------------------------------------------------------------------------------ 3 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 8 250 S SIZEAXIS2=128.0, WAVECAL=NO (2000 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SEQ 4-5 NON-INT SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 5 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 10 250 S SIZEAXIS2=128.0, WAVECAL=NO (2500 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SEQ 6-7 NON-INT SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 7 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 10 250 S SIZEAXIS2=128.0, WAVECAL=NO (2500 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SEQ 8-9 NON-INT SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 9 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 10 250 S SIZEAXIS2=128.0, WAVECAL=NO (2500 S) ------------------------------------------------------------------------------------------------------------------------------------ 14099( 5) - 03-Nov-2015 18:05:25 - [ 8] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 1 1 S (1 S) SEQ 10-11 NON-INT SIZEAXIS2=128.0, WAVECAL=NO Comments: Short exposure to minimize instrument systematic of first exposure in each orbit. ------------------------------------------------------------------------------------------------------------------------------------ 11 HAT-P-18 STIS/CCD ACCUM 52X2 G750L 7751 CR-SPLIT=NO, GAIN=4, 10 250 S SIZEAXIS2=128.0, WAVECAL=NO (2500 S) ------------------------------------------------------------------------------------------------------------------------------------ 12 WAVE STIS/CCD ACCUM 52X0.2 G750L 7751 1 DEF (0 S) Comments: Explicit WAVECAL, auto-waves disabled ------------------------------------------------------------------------------------------------------------------------------------ 13 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ 14 NONE STIS/CCD ACCUM 0.3X0.09 G750L 7751 LAMP=TUNGSTEN, CR-SPLIT=NO, 4 240 S (960 GAIN=4, SIZEAXIS2=128.0 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A HAT-P-18 2 STIS/CCD ACCUM 52X2 G750L 7751 none none none none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 1 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 2 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 3 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 4 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 5 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 6 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 7 none 1 N/A HAT-P-18 3 STIS/CCD ACCUM 52X2 G750L 7751 none none 8 none 1 N/A HAT-P-18 4 STIS/CCD ACCUM 52X2 G750L 7751 none none none none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 1 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 2 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 3 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 4 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 5 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 6 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 7 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 8 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 9 none 2 N/A HAT-P-18 5 STIS/CCD ACCUM 52X2 G750L 7751 none none 10 none 2 N/A HAT-P-18 6 STIS/CCD ACCUM 52X2 G750L 7751 none none none none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 1 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 2 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 3 none 3 N/A 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 4 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 5 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 6 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 7 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 8 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 9 none 3 N/A HAT-P-18 7 STIS/CCD ACCUM 52X2 G750L 7751 none none 10 none 3 N/A HAT-P-18 8 STIS/CCD ACCUM 52X2 G750L 7751 none none none none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 1 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 2 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 3 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 4 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 5 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 6 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 7 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 8 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 9 none 4 N/A HAT-P-18 9 STIS/CCD ACCUM 52X2 G750L 7751 none none 10 none 4 N/A HAT-P-18 10 STIS/CCD ACCUM 52X2 G750L 7751 none none none none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 1 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 2 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 3 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 4 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 5 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 6 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 7 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 8 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 9 none 5 N/A HAT-P-18 11 STIS/CCD ACCUM 52X2 G750L 7751 none none 10 none 5 N/A WAVE 12 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none none 5 N/A CCDFLAT 13 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 5 N/A CCDFLAT 13 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 5 N/A NONE 14 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 5 N/A NONE 14 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 5 N/A NONE 14 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 3 none 5 N/A NONE 14 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 4 none 5 N/A 14099( 5) - 03-Nov-2015 18:05:25 - [ 10] Visit: 04 Visit Requirements: Period 5.50802888 D AND ZERO-PHASE HJD2456461.06765758 On Hold Comments: Additional Comments: HAT-P-18. G141. WFC3 visit. It is essential that the five orbits be scheduled in a coninuous block, free of the SAA. We will use the spatial scanning mode to lengthen the spectrum along the slit during the exposures, to avoid saturation on relatively long exposures. This mode 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 HAT-P-18 WFC3/IR MULTIAC GRISM256 F130N SAMP-SEQ=RAPID, NSAMP=7 1 DEF (1.945 PHASE 0.9655 TO 0.9680; CUM S) GS ACQ SCENARIO BASE1B3 Comments: Direct image for wavelength calibration. Phase constrained. ------------------------------------------------------------------------------------------------------------------------------------ 2 HAT-P-18 WFC3/IR MULTIAC GRISM256 G141 SAMP-SEQ=SPARS25, NSAMP=5 98 DEF POS TARG 0.0, 0.0; CUM (8786.873 SPATIAL SCAN 0.022, 90.0 S) Degrees, Forward Comments: Spatial scan. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 1 WFC3/IR MULTIAC GRISM256 F130N none none none none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 1 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 2 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 3 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 4 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 5 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 6 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 7 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 8 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 9 none 1 N/A CUM 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 10 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 11 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 12 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 13 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 14 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 15 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 16 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 17 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 18 none 1 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 19 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 20 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 21 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 22 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 23 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 24 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 25 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 26 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 27 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 28 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 29 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 30 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 31 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 32 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 33 none 2 N/A CUM 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 34 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 35 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 36 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 37 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 38 none 2 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 39 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 40 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 41 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 42 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 43 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 44 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 45 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 46 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 47 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 48 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 49 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 50 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 51 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 52 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 53 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 54 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 55 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 56 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 57 none 3 N/A CUM 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 58 none 3 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 59 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 60 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 61 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 62 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 63 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 64 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 65 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 66 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 67 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 68 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 69 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 70 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 71 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 72 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 73 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 74 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 75 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 76 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 77 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 78 none 4 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 79 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 80 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 81 none 5 N/A CUM 14099( 5) - 03-Nov-2015 18:05:25 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 82 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 83 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 84 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 85 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 86 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 87 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 88 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 89 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 90 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 91 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 92 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 93 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 94 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 95 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 96 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 97 none 5 N/A CUM HAT-P-18 2 WFC3/IR MULTIAC GRISM256 G141 none none 98 none 5 N/A CUM 14099( 5) - 03-Nov-2015 18:05:25 - [ 15] Summary Form for Proposal 14099 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.3X0.09, 52X0.2, 52X2, F28X50LP, GRISM256 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, GAIN=4, LAMP=TUNGSTEN, NSAMP=5, NSAMP=7, SAMP-SEQ=RAPID, SAMP-SEQ=SPARS25, SIZEAXIS2=128.0, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, PHASE 0.9655 TO 0.9680, POS TARG 0.0, 0.0, Period 5.50802888 D AND ZERO-PHASE HJD2456461.06765758, SCHED 80%, SEQ 1-3 NON-INT, SEQ 10-11 NON-INT, SEQ 4-5 NON-INT, SEQ 6-7 NON-INT, SEQ 8-9 NON-INT, SPATIAL SCAN 0.022, 90.0 Degrees, Forward ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F130N, G141, G430L, G750L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names CCDFLAT, HAT-P-18, NONE, WAVE ------------------------------------------------------------------------------------------------------------------------------------