14094( 3) - 11-Aug-2015 11:20:03 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14094 Version: 3 Check-in Time: 11-Aug-2015 11:20:03 STScI Edit Number: 0 Title Characterization of the extended atmosphere and the nature of the hot super-Earth 55 Cnc e and the warm Jupiter 55 Cnc b ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Vincent Bourrier Observatoire de Geneve Y CoI: Dr. David Ehrenreich Observatoire de Geneve N CoI: Dr. Alain Lecavelier des Etangs CNRS, Institut d'Astrophysique de Paris N CoI: Dr. Alfred Vidal-Madjar CNRS, Institut d'Astrophysique de Paris N CoI: Dr. Stephane Udry Observatoire de Geneve N CoI: Dr. Christophe Lovis Observatoire de Geneve N CoI: Dr. Francesco Pepe Observatoire de Geneve N CoI: Mr. Aurelien Wyttenbach Observatoire de Geneve N ------------------------------------------------------------------------------------ Abstract The super-Earth 55 Cnc e transits an extremely bright star (V=6) at a very short separation (a=0.016 au). The mean density of this planet suggests it is surrounded by a thick gaseous envelope, yet our observations at Lyman-alpha detected no significant amounts of hydrogen or water. Located within a carbon-rich system, 55 Cnc e might be a 'Super-Venus' with a carbon-dioxyde envelop containing metals such as Mg. We propose to further constrain the nature of this planet through COS observations in the CII line, to assess the presence of an extended cloud rich in ionized carbon produced by the photodissociation of the irradiated CO2 envelope. We will further characterize the structure of this cloud through observations in the MgI line, recently revealed as a sensitive probe of extended atmospheres. We also detected significant Ly-alpha absorption at the inferior conjunction of the warm giant 55 Cnc b, suggesting that we witnessed the partial transit of an extended hydrogen envelope around a non-transiting planet grazing the star. The planet lies beyond 0.1 au and is thus in a lower regime of irradiation than hot Jupiters. We propose to use absorption lines to confirm the presence of an extended atmosphere around 55 Cnc b, and to investigage its regime of evaporation. We will observe simultaneously the atmospheric transits of 55 Cnc e and b in the third visit. Both STIS and COS proposed spectral ranges will allow us to look for many additional species in the upper atmospheres of these two planets, in completely different regimes of mass and irradiation. ------------------------------------------------------------------------------------ Observations Description ------------------------ This program consists in 3 visits for a total of 13 HST orbits, dedicated to the observations of the transits of two exoplanets (55 Cancri 'e' and 'b') in front of their host-star. Following the difficulty identified by the TAC to disentangle between the signatures of 55 Cancri 'e' and 'b', we selected the same settings for the transit of 55 Cancri e (Visit #2) and the transit of both 55 Cancri 'e' and 'b' (Visit #3). In 2 visit of 4 orbits each (Visits #1 and #2) we will observe the transit of 14094( 3) - 11-Aug-2015 11:20:03 - [ 2] 55 Cancri 'e'. For planet 'e', transits occur every 17.7 hours (the orbital period of the planet) and last for about 1.5 hours In 1 visit of 5 orbits (Visit #3) we will observe at the same time the transits of 55 Cancri 'e' and 'b'. There are about 6 favorable configurations per year for this. Note that 55 Cnc b is not refered to as a transiting planet because its planetary disk (as seen in the optical) does not cross in front of the star. We refer here to the partial transit of its atmosphere when the planet is at inferior conjunction with the star, that is expected to last for about 4 hours and to occur every 14.65 days. For Visits #1 and #2 the timing requirements are set as phase constraints on the first ACQ exposure of the first orbit in a visit. The goal is to observe the star during two HST orbits before the transit, one HST orbit during the transit, and one HST orbit after the transit. The allowed start phase range is ~26 min. For Visit #3 the goal is to cover the transits of both planets 'e' and 'b'. We indicate in the timing requirements the specific dates when the transits of both planets can be observed at about the same time (these dates cover the next two years until June 2017). For each of these dates, the phase constraints are the same, and are set on the first ACQ exposure of the first orbit (using the period and zero phase of planet 55 Cancri 'e'). ------------------------------------------------------------------------------------ 14094( 3) - 11-Aug-2015 11:20:03 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 -RHO-CNC STAR, EXTRA-SOLAR RA=08H52M35.8109S +/- 0.0085", J2000 V = V = 5.95 U=7.45, B=6.82, R=5.4, I=5.0, PLANETARY SYSTEM, G DEC=+28D19'50.95" +/- 0.006" 27.36 J=4.59, H=4.14, K=4.015 V-IV Reference Frame: ICRS Extended: NO Comments: This star is in a double system (common proper motions) with 55 Cancri B (GJ 324B), a much fainter (V=13) M4 dwarf that is 1.4-arcmin away. It also 4.6-arcmin away from the similarly bright (V=6.3) star 53 Cancri (BO Cancri) Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.03679373930991556 -0.23405 0.08103 ------------------------------------------------------------------------------------------------------------------------------------ 14094( 3) - 11-Aug-2015 11:20:03 - [ 4] Visit: 01 Visit Requirements: SCHED 100%; Period 0.7365417 D AND ZERO-PHASE HJD2455733.008 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -RHO-CNC STIS/CCD ACQ F28X50OII MIRROR 1 1 S (1 S) PHASE 0.785 TO 0.81; SEQ 1-4 NON-INT Comments: For the ACQ and ACQ/PEAK exposures, we selected the same settings as in Program #12681 which consisted of STIS observations of the same star. We checked these settings by running the ETC. ------------------------------------------------------------------------------------------------------------------------------------ 2 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) K ------------------------------------------------------------------------------------------------------------------------------------ 3 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 WAVECAL=NO 7 250 S -MAMA see below (1540 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the optimal combination between time resolution, SNR, and buffer dumps. ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 5 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 5-7 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 6 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 8 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 8-10 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 9 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the same time resolution as the one we usually use our time-tag data. ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 11 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 11-13 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 12 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the same time resolution as the one we usually use our time-tag data. ------------------------------------------------------------------------------------------------------------------------------------ 13 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 1 STIS/CCD ACQ F28X50OI MIRROR none none none none 1 N/A I -RHO-CNC 2 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 1 N/A K -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 1 220.0 S -MAMA 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 1 220.0 S -MAMA WAVE 4 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 1 N/A -MAMA -RHO-CNC 5 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 2 N/A K -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 2 234.0 S -MAMA WAVE 7 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 2 N/A -MAMA -RHO-CNC 8 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 3 N/A K -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 3 234.0 S -MAMA WAVE 10 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 3 N/A -MAMA 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 11 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 4 N/A K -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 4 234.0 S -MAMA WAVE 13 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 4 N/A -MAMA 14094( 3) - 11-Aug-2015 11:20:03 - [ 8] Visit: 02 Visit Requirements: SCHED 100%; Period 0.7365417 D AND ZERO-PHASE HJD2455733.008 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -RHO-CNC COS/NUV ACQ/IMA BOA MIRRORB 1 90 S (90 PHASE 0.785 TO 0.81; SEQ GE S) 1-2 NON-INT Comments: We followed the recommandation of the STScI for the settings. ------------------------------------------------------------------------------------------------------------------------------------ 2 -RHO-CNC COS/FUV TIME-TA PSA G130M 1291 FLASH=YES, FP-POS=ALL, 1 535 S G BUFFER-TIME=1000 see below (1760 S) Comments: In the ETC run, the strength of the stellar Lyman-alpha line has been set to an extremely conservative value, and the airglow as set to its higher value, in order to calculate the buffer-time. ------------------------------------------------------------------------------------------------------------------------------------ 3 -RHO-CNC COS/NUV ACQ/IMA BOA MIRRORB 1 90 S (90 SEQ 3-4 NON-INT GE S) Comments: We followed the recommandation of the STScI for the settings. ------------------------------------------------------------------------------------------------------------------------------------ 4 -RHO-CNC COS/FUV TIME-TA PSA G130M 1291 FLASH=YES, FP-POS=ALL, 1 535 S G BUFFER-TIME=1000 see below (1844 S) Comments: In the ETC run, the strength of the stellar Lyman-alpha line has been set to an extremely conservative value, and the airglow as set to its higher value, in order to calculate the buffer-time. ------------------------------------------------------------------------------------------------------------------------------------ 5 -RHO-CNC COS/NUV ACQ/IMA BOA MIRRORB 1 90 S (90 SEQ 5-6 NON-INT GE S) Comments: We followed the recommandation of the STScI for the settings. ------------------------------------------------------------------------------------------------------------------------------------ 6 -RHO-CNC COS/FUV TIME-TA PSA G130M 1291 FLASH=YES, FP-POS=ALL, 1 535 S G BUFFER-TIME=1000 see below (1844 S) Comments: In the ETC run, the strength of the stellar Lyman-alpha line has been set to an extremely conservative value, and the airglow as set to its higher value, in order to calculate the buffer-time. ------------------------------------------------------------------------------------------------------------------------------------ 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 7 -RHO-CNC COS/NUV ACQ/IMA BOA MIRRORB 1 90 S (90 SEQ 7-8 NON-INT GE S) Comments: We followed the recommandation of the STScI for the settings. ------------------------------------------------------------------------------------------------------------------------------------ 8 -RHO-CNC COS/FUV TIME-TA PSA G130M 1291 FLASH=YES, FP-POS=ALL, 1 535 S G BUFFER-TIME=1000 see below (1844 S) Comments: In the ETC run, the strength of the stellar Lyman-alpha line has been set to an extremely conservative value, and the airglow as set to its higher value, in order to calculate the buffer-time. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 1 COS/NUV ACQ/IMA BOA MIRRORB none none none none 1 N/A GE -RHO-CNC 2 COS/FUV TIME-TA PSA G130M 1291 none none none 1 1 440.0 S G -RHO-CNC 2 COS/FUV TIME-TA PSA G130M 1291 none none none 2 1 440.0 S G -RHO-CNC 2 COS/FUV TIME-TA PSA G130M 1291 none none none 3 1 440.0 S G -RHO-CNC 2 COS/FUV TIME-TA PSA G130M 1291 none none none 4 1 440.0 S G -RHO-CNC 3 COS/NUV ACQ/IMA BOA MIRRORB none none none none 2 N/A GE -RHO-CNC 4 COS/FUV TIME-TA PSA G130M 1291 none none none 1 2 461.0 S G -RHO-CNC 4 COS/FUV TIME-TA PSA G130M 1291 none none none 2 2 461.0 S G -RHO-CNC 4 COS/FUV TIME-TA PSA G130M 1291 none none none 3 2 461.0 S G -RHO-CNC 4 COS/FUV TIME-TA PSA G130M 1291 none none none 4 2 461.0 S G -RHO-CNC 5 COS/NUV ACQ/IMA BOA MIRRORB none none none none 3 N/A GE -RHO-CNC 6 COS/FUV TIME-TA PSA G130M 1291 none none none 1 3 461.0 S G -RHO-CNC 6 COS/FUV TIME-TA PSA G130M 1291 none none none 2 3 461.0 S G 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 6 COS/FUV TIME-TA PSA G130M 1291 none none none 3 3 461.0 S G -RHO-CNC 6 COS/FUV TIME-TA PSA G130M 1291 none none none 4 3 461.0 S G -RHO-CNC 7 COS/NUV ACQ/IMA BOA MIRRORB none none none none 4 N/A GE -RHO-CNC 8 COS/FUV TIME-TA PSA G130M 1291 none none none 1 4 461.0 S G -RHO-CNC 8 COS/FUV TIME-TA PSA G130M 1291 none none none 2 4 461.0 S G -RHO-CNC 8 COS/FUV TIME-TA PSA G130M 1291 none none none 3 4 461.0 S G -RHO-CNC 8 COS/FUV TIME-TA PSA G130M 1291 none none none 4 4 461.0 S G 14094( 3) - 11-Aug-2015 11:20:03 - [ 11] Visit: 03 Visit Requirements: SCHED 100%; BETWEEN 14-NOV-2015:21:46:00 AND 15-NOV-2015:07:47:00; BETWEEN 29-NOV-2015:15:20:00 AND 30-NOV-2015:01:20:00; BETWEEN 14-DEC-2015:08:53:00 AND 14-DEC-2015:18:53:00; BETWEEN 09-APR-2016:11:30:00 AND 09-APR-2016:21:30:00; BETWEEN 24-APR-2016:05:00:00 AND 24-APR-2016:15:00:00; BETWEEN 19-AUG-2016:07:36:00 AND 19-AUG-2016:17:36:00; BETWEEN 03-SEP-2016:01:10:00 AND 03-SEP-2016:11:10:00; BETWEEN 29-DEC-2016:03:55:00 AND 29-DEC-2016:13:55:00; BETWEEN 12-JAN-2017:21:27:00 AND 13-JAN-2017:07:27:00; BETWEEN 24-MAY-2017:17:32:00 AND 25-MAY-2017:03:32:00; BETWEEN 08-JUN-2017:11:04:00 AND 08-JUN-2017:21:04:00; Period 0.7365417 D AND ZERO-PHASE HJD2455733.008 On Hold Comments: Additional Comments: For Visit #3 the goal is to cover the transits of both planets 'e' and 'b'. We indicate in the timing requirements the specific dates when the transits of both planets can be observed at about the same time (these dates cover the next two years until June 2017). We give for each date (in UTC) a time interval of +-5h around the transit of planet 'e', which should allow to identify it with certainty. For each date the phase constraints are the same and defined using the period and zero phase of planet 55 Cancri 'e'. They are set on the first ACQ exposure of the first orbit. With these phase constraints, the 5 HST orbits in Visit #3 allow to cover the transits of both planets at all selected dates. However, experience in analyzing HST observations of atmospheric transits taught us it is better to have at least one HST orbit made before the transit, which is not the case in three of the selected dates (14 Dec. 2015; 24 April 2016; 8 June 2017). If possible (ie, unless it postpones the visit after June 2017), it would thus be better to avoid schedulind Visit #3 at one of these three dates. 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 -RHO-CNC STIS/CCD ACQ F28X50OII MIRROR 1 1 S (1 S) PHASE 0.785 TO 0.81; SEQ 1-4 NON-INT Comments: For the ACQ and ACQ/PEAK exposures, we selected the same settings as in Program #12681 which consisted of STIS observations of the same star. We checked these settings by running the ETC. ------------------------------------------------------------------------------------------------------------------------------------ 2 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) K ------------------------------------------------------------------------------------------------------------------------------------ 3 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 WAVECAL=NO 7 250 S -MAMA see below (1540 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the same time resolution as the one we usually use our time-tag data. ------------------------------------------------------------------------------------------------------------------------------------ 14094( 3) - 11-Aug-2015 11:20:03 - [ 12] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 5 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 5-7 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 6 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the same time resolution as the one we usually use our time-tag data. ------------------------------------------------------------------------------------------------------------------------------------ 7 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 8 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 8-10 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 9 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) Comments: The count rate estimated from the ETC run is just above 2e4 counts/s. We thus set the buffer-time to its minimal value of 99, but the data loss should be negligible for our scientific purpose. ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 11 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 11-13 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 12 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the same time resolution as the one we usually use our time-tag data. ------------------------------------------------------------------------------------------------------------------------------------ 14094( 3) - 11-Aug-2015 11:20:03 - [ 13] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 13 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 14 -RHO-CNC STIS/CCD ACQ/PEA 52X0.05 G430L 4300 1 1 S (1 S) SEQ 14-16 NON-INT K ------------------------------------------------------------------------------------------------------------------------------------ 15 -RHO-CNC STIS/NUV ACCUM 0.2X0.2 E230M 2707 8 200 S -MAMA see below (1872 S) Comments: The count-rate estimated in time-tag mode results in too many buffer dumps. As an alternative for our scientific purpose, we use instead a series of ACCUM mode exposures with the same time resolution as the one we usually use our time-tag data. ------------------------------------------------------------------------------------------------------------------------------------ 16 WAVE STIS/NUV ACCUM 0.2X0.2 E230M 2707 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 1 STIS/CCD ACQ F28X50OI MIRROR none none none none 1 N/A I -RHO-CNC 2 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 1 N/A K -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 1 220.0 S -MAMA -RHO-CNC 3 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 1 220.0 S -MAMA WAVE 4 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 1 N/A -MAMA -RHO-CNC 5 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 2 N/A K 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 2 234.0 S -MAMA -RHO-CNC 6 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 2 234.0 S -MAMA WAVE 7 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 2 N/A -MAMA -RHO-CNC 8 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 3 N/A K -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 3 234.0 S -MAMA -RHO-CNC 9 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 3 234.0 S -MAMA WAVE 10 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 3 N/A -MAMA -RHO-CNC 11 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 4 N/A K -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 4 234.0 S -MAMA 14094( 3) - 11-Aug-2015 11:20:03 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 4 234.0 S -MAMA -RHO-CNC 12 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 4 234.0 S -MAMA WAVE 13 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 4 N/A -MAMA -RHO-CNC 14 STIS/CCD ACQ/PEA 52X0.05 G430L 4300 none none none none 5 N/A K -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 1 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 2 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 3 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 4 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 5 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 6 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 7 none 5 234.0 S -MAMA -RHO-CNC 15 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none 8 none 5 234.0 S -MAMA WAVE 16 STIS/NUV ACCUM 0.2X0.2 E230M 2707 none none none none 5 N/A -MAMA 14094( 3) - 11-Aug-2015 11:20:03 - [ 16] Summary Form for Proposal 14094 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.2, 52X0.05, BOA, F28X50OII, PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV, STIS/CCD, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/IMAGE, ACQ/PEAK, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=1000, FLASH=YES, FP-POS=ALL, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 03-SEP-2016:01:10:00 AND 03-SEP-2016:11:10:00, BETWEEN 08-JUN-2017:11:04:00 AND 08-JUN-2017:21:04:00, BETWEEN 09-APR-2016:11:30:00 AND 09-APR-2016:21:30:00, BETWEEN 12-JAN-2017:21:27:00 AND 13-JAN-2017:07:27:00, BETWEEN 14-DEC-2015:08:53:00 AND 14-DEC-2015:18:53:00, BETWEEN 14-NOV-2015:21:46:00 AND 15-NOV-2015:07:47:00, BETWEEN 19-AUG-2016:07:36:00 AND 19-AUG-2016:17:36:00, BETWEEN 24-APR-2016:05:00:00 AND 24-APR-2016:15:00:00, BETWEEN 24-MAY-2017:17:32:00 AND 25-MAY-2017:03:32:00, BETWEEN 29-DEC-2016:03:55:00 AND 29-DEC-2016:13:55:00, BETWEEN 29-NOV-2015:15:20:00 AND 30-NOV-2015:01:20:00, PHASE 0.785 TO 0.81, Period 0.7365417 D AND ZERO-PHASE HJD2455733.008, Period 0.7365417 D AND ZERO-PHASE HJD2455733.008 , SCHED 100%, SEQ 1-2 NON-INT, SEQ 1-4 NON-INT, SEQ 11-13 NON-INT, SEQ 14-16 NON-INT, SEQ 3-4 NON-INT, SEQ 5-6 NON-INT, SEQ 5-7 NON-INT, SEQ 7-8 NON-INT, SEQ 8-10 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E230M, G130M, G430L, MIRROR, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names -RHO-CNC, WAVE ------------------------------------------------------------------------------------------------------------------------------------