14221( 13) - 01-Feb-2018 18:53:19 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14221 Version: 13 Check-in Time: 01-Feb-2018 18:53:19 STScI Edit Number: 0 Title HST Confirmation and Characterization of a Potentially Habitable World ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. David Ehrenreich Observatoire de Geneve Y CoI: Dr. Vincent Bourrier Observatoire de Geneve N CoI: Dr. Francois Forget Universite Paris N CoI: Dr. Nicola Astudillo-Defru Observatoire de Geneve N CoI: Dr. Xavier Bonfils Universite de Grenoble I N CoI: Dr. Christophe Lovis Observatoire de Geneve N CoI: Prof. Francesco Pepe Observatoire de Geneve N CoI: Prof. Stephane Udry Observatoire de Geneve N ------------------------------------------------------------------------------------ Abstract Atmospheric characterization of exoplanets in habitable zones is one of the greatest challenge of astrophysics. In fact, all known potential targets either do not transit, or they transit stars too faint or distant, making them impossible to probe with transit spectroscopy. A recently announced K2 planet candidate found in the habitable zone of a nearby M dwarf, could be a game changer as the first habitable-zone super-Earth (2.2 R_Earth) amenable to characterization. We propose to use HST to (1) validate the planet candidate by observing a high-precision near-infrared transit with WFC3 and (2) characterize its atmosphere by detecting an extended hydrogen exosphere in the far ultraviolet with STIS. Hydrogen escape is indeed a telltale sign of terrestrial planets enduring a runaway greenhouse effect. Further considerations on the habitable potential of the planet thus need to be vet against a detection of hydrogen escape. Our recent STIS Lyman-alpha observations of a moderately irradiated neptune show that extended upper atmospheres can reach much larger sizes around such planets than around very hot exoplanets. We could thus obtain a significant detection with a modest amount of HST orbits. In parallel, we started a ground-based campaign to constrain the yet unknown mass of this planet with Doppler measurements. Combining the Lyman-alpha transit depth with the measurement of the planet bulk density (from the accurate near-infrared transit and the Doppler mass), will reveal for the first time whether an exoplanet can be telluric and actually habitable, or if it is losing its water because of a runaway greenhouse effect. ------------------------------------------------------------------------------------ Observations Description ------------------------ We are going to observe one transit of exoplanet EPIC 201912552.01, which lies in the habitable zone of its M dwarf host. The planet was found by the K2 survey; and two transits are known, yielding some uncertainties on the planet transit ephemeride. We use the ephemeride to impose phase constraints on the first (ACQ) exposure of the first orbit in the visit. These constraints are set to allow observation of 2 orbits before the transit, 2 orbits after the transit, and one orbit (the third one) within the optical transit of the 14221( 13) - 01-Feb-2018 18:53:19 - [ 2] planet. The UV transit can be much longer than the optical transit, and orbits 2 and 4 could catch an extended transit. We are submitted a Spitzer DDT to observe a NIR transit, which could significantly firm up the transit ephemeride (this was the original purpose of another WFC3 visit in this programme, which has been removed by the TAC). The science observations are all done with STIS/FUV-MAM/G140M using time-tag mode. Because the ACQ/PEAK is quite long, we won't repeat it in the subsequent orbits to save science time. I will also make a request to be able to use GO wavecals during occultations. ------------------------------------------------------------------------------------ 14221( 13) - 01-Feb-2018 18:53:19 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 2M11301450+0 STAR, EXTRA-SOLAR RA=11H30M14.5092S +/- 0.35", J2000 V = 13.5 +/- 0.05 J=9.76, H=9.13, 735180 PLANETARY SYSTEM, M DEC=+07D35'18.05" +/- 0.35" K=8.90 V-IV Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the 2MASS database. It's also part of the K2 Ecliptic Plan Input Catalog. None of those data bases list proper motions. However, we will be able to retrieve those from contemporaneous observations we are doing from the ground to follow-up the system. We will update the Phase 2 as soon as possible with these information. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.004976919110708439 -0.122 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 14221( 13) - 01-Feb-2018 18:53:19 - [ 4] Visit: 01 (STIS/FUV) Visit Requirements: Period 32.939700 D AND ZERO-PHASE HJD2457264.391819 On Hold Comments: Additional Comments: This 5-orbit visit will capture the transit of the planet using STIS/FUV-MAMA. 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 2M11301450+ STIS/CCD ACQ F25ND3 MIRROR 1 14 S (14 PHASE 0.9942 TO 0.9966; 0735180 S) SEQ 1-4 NON-INT Comments: 14s allows to obtain S/N > 50 for this acquisition exposure. ------------------------------------------------------------------------------------------------------------------------------------ 2 2M11301450+ STIS/CCD ACQ/PEA 52X0.05 MIRROR 1 1 S (1 S) 0735180 K Comments: The previous setting (commented below) resulted in a very long (~1, 000 sec) ACQ/PEAK procedure. I have thus changed settings to simply use the mirror and drop the grism. In 1 sec, the S/N > 150 and the warning on CTE vs. low-background disappeared. #Previous setting: (ACQ/PEAK with a grism) #45s allows to reach over S/N=40 at with STIS/CCD/G750L at 7751 Angstroms. The Spectroscopic ETC yields a warning about the issue with charge transfer #efficiency for low background, but we are just using the CCD for the target acquisition, after which we switch to the MAMA. ------------------------------------------------------------------------------------------------------------------------------------ 3 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900, WAVECAL=NO 1 1995 S 0735180 -MAMA G (1995 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 14221( 13) - 01-Feb-2018 18:53:19 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 5 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2961 S SEQ 5-6 NON-INT 0735180 -MAMA G (2961 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 7 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2961 S SEQ 7-8 NON-INT 0735180 -MAMA G (2961 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 8 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 9 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2961 S SEQ 9-10 NON-INT 0735180 -MAMA G (2961 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 11 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2961 S SEQ 11-12 NON-INT 0735180 -MAMA G (2961 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 12 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA 14221( 13) - 01-Feb-2018 18:53:19 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2M11301450+0735180 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A 2M11301450+0735180 2 STIS/CCD ACQ/PEA 52X0.05 MIRROR none none none none 1 N/A K 2M11301450+0735180 3 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 1 N/A -MAMA G WAVE 4 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 1 N/A -MAMA 2M11301450+0735180 5 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 2 N/A -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 2 N/A -MAMA 2M11301450+0735180 7 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 3 N/A -MAMA G WAVE 8 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 3 N/A -MAMA 2M11301450+0735180 9 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 4 N/A -MAMA G WAVE 10 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 4 N/A -MAMA 2M11301450+0735180 11 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 5 N/A -MAMA G WAVE 12 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 5 N/A -MAMA 14221( 13) - 01-Feb-2018 18:53:19 - [ 7] Visit: 11 (STIS/FUV) Visit Requirements: SCHED 100%; Period 32.939700 D AND ZERO-PHASE HJD2457264.391819 On Hold Comments: Additional Comments: This 5-orbit visit will capture the transit of the planet using STIS/FUV-MAMA. Added as a repeat of visit 01 which did not execute due to a STIS safing on 6/19/2016 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 2M11301450+ STIS/CCD ACQ F25ND3 MIRROR 1 14 S (14 PHASE 0.9930 TO 0.9966; 0735180 S) SEQ 1-4 NON-INT Comments: 14s allows to obtain S/N > 50 for this acquisition exposure. ------------------------------------------------------------------------------------------------------------------------------------ 2 2M11301450+ STIS/CCD ACQ/PEA 52X0.05 MIRROR 1 1 S (1 S) 0735180 K Comments: The previous setting (commented below) resulted in a very long (~1, 000 sec) ACQ/PEAK procedure. I have thus changed settings to simply use the mirror and drop the grism. In 1 sec, the S/N > 150 and the warning on CTE vs. low-background disappeared. #Previous setting: (ACQ/PEAK with a grism) #45s allows to reach over S/N=40 at with STIS/CCD/G750L at 7751 Angstroms. The Spectroscopic ETC yields a warning about the issue with charge transfer #efficiency for low background, but we are just using the CCD for the target acquisition, after which we switch to the MAMA. ------------------------------------------------------------------------------------------------------------------------------------ 3 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900, WAVECAL=NO 1 1774 S 0735180 -MAMA G (1774 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 14221( 13) - 01-Feb-2018 18:53:19 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 5 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 5-6 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 7 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 7-8 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 8 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 9 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 9-10 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 11 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 11-12 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 12 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA 14221( 13) - 01-Feb-2018 18:53:19 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2M11301450+0735180 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A 2M11301450+0735180 2 STIS/CCD ACQ/PEA 52X0.05 MIRROR none none none none 1 N/A K 2M11301450+0735180 3 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 1 N/A -MAMA G WAVE 4 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 1 N/A -MAMA 2M11301450+0735180 5 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 2 N/A -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 2 N/A -MAMA 2M11301450+0735180 7 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 3 N/A -MAMA G WAVE 8 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 3 N/A -MAMA 2M11301450+0735180 9 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 4 N/A -MAMA G WAVE 10 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 4 N/A -MAMA 2M11301450+0735180 11 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 5 N/A -MAMA G WAVE 12 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 5 N/A -MAMA 14221( 13) - 01-Feb-2018 18:53:19 - [ 10] Visit: 21 (STIS/FUV) Visit Requirements: SCHED 100%; Period 32.939700 D AND ZERO-PHASE HJD2457264.391819 On Hold Comments: Additional Comments: This 4-orbit visit will capture the transit of the planet using STIS/FUV-MAMA. Added as a repeat of visit 11 which was lost due to a MAMA1 reset event (HOPR 88203). The repeat is 4 orbits instead of the original 5 to optimize schedulability. 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 2M11301450+ STIS/CCD ACQ F25ND3 MIRROR 1 14 S (14 PHASE 0.99508 TO 0735180 S) 0.99598; SEQ 1-4 NON-INT Comments: 14s allows to obtain S/N > 50 for this acquisition exposure. ------------------------------------------------------------------------------------------------------------------------------------ 2 2M11301450+ STIS/CCD ACQ/PEA 52X0.05 MIRROR 1 1 S (1 S) 0735180 K Comments: The previous setting (commented below) resulted in a very long (~1, 000 sec) ACQ/PEAK procedure. I have thus changed settings to simply use the mirror and drop the grism. In 1 sec, the S/N > 150 and the warning on CTE vs. low-background disappeared. #Previous setting: (ACQ/PEAK with a grism) #45s allows to reach over S/N=40 at with STIS/CCD/G750L at 7751 Angstroms. The Spectroscopic ETC yields a warning about the issue with charge transfer #efficiency for low background, but we are just using the CCD for the target acquisition, after which we switch to the MAMA. ------------------------------------------------------------------------------------------------------------------------------------ 3 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900, WAVECAL=NO 1 1774 S 0735180 -MAMA G (1774 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 14221( 13) - 01-Feb-2018 18:53:19 - [ 11] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 5-6 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 7 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 7-8 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 8 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 9 2M11301450+ STIS/FUV TIME-TA 52X0.05 G140M 1222 BUFFER-TIME=900 1 2740 S SEQ 9-10 NON-INT 0735180 -MAMA G (2740 S) Comments: The star is of the same spectral type (M2V) as GJ 436, observed several time (e.g., GO#12965) in this configuration. The target is ~3 mag fainter and farther away (30 pc vs. 10 pc) than GJ 436, so the Lyman-alpha flux of the target will be weaker than GJ 436's. ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/FUV ACCUM 52X0.05 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 2M11301450+0735180 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A 2M11301450+0735180 2 STIS/CCD ACQ/PEA 52X0.05 MIRROR none none none none 1 N/A K 2M11301450+0735180 3 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 1 N/A -MAMA G 14221( 13) - 01-Feb-2018 18:53:19 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WAVE 4 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 1 N/A -MAMA 2M11301450+0735180 5 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 2 N/A -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 2 N/A -MAMA 2M11301450+0735180 7 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 3 N/A -MAMA G WAVE 8 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 3 N/A -MAMA 2M11301450+0735180 9 STIS/FUV TIME-TA 52X0.05 G140M 1222 none none none none 4 N/A -MAMA G WAVE 10 STIS/FUV ACCUM 52X0.05 G140M 1222 none none none none 4 N/A -MAMA 14221( 13) - 01-Feb-2018 18:53:19 - [ 13] Summary Form for Proposal 14221 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 52X0.05, F25ND3 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=900, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PHASE 0.9930 TO 0.9966, PHASE 0.9942 TO 0.9966, PHASE 0.99508 TO 0.99598, Period 32.939700 D AND ZERO-PHASE HJD2457264.391819, SCHED 100%, SEQ 1-4 NON-INT, SEQ 11-12 NON-INT, SEQ 5-6 NON-INT, SEQ 7-8 NON-INT, SEQ 9-10 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G140M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names 2M11301450+0735180, WAVE ------------------------------------------------------------------------------------------------------------------------------------