14257( 16) - 19-May-2016 17:58:01 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14257 Version: 16 Check-in Time: 19-May-2016 17:58:01 STScI Edit Number: 0 Title Far UV spectroscopic measurements of the deuterium abundance of comets ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Dennis Bodewits University of Maryland Y CoI: Dr. Michael F. A'Hearn University of Maryland N CoI: Dr. Jian-Yang Li Planetary Science Institute N CoI: Dr. Adam McKay University of Texas at Austin N CoI: Dr. Anita Cochran University of Texas at Austin N ------------------------------------------------------------------------------------ Abstract We propose to use STIS Echelle spectroscopy to measure the deuterium to hydrogen ratio in two ToO comets to investigate the origin of their water ice. The deuterium abundance of water in comets preserves information about the formation conditions of our solar system, while also constraining the possible contribution of cometary water to Earth's oceans. The D/H values in JF comets and the ice ratios (CO/CO2/H2O) in both Jupiter Family and Oort Cloud comets call into question the details of the dynamical processes for populating the modern reservoirs for these two dynamical classes. However, currently too few D/H ratios have been measured in comets to allow for a meaningful interpretation. With a dedicated observing campaign we will measure the ratio between Ly-alpha emission from deuterium and hydrogen atoms from two different comets. We have defined strict conditions that ensure the quality of our measurement which we will use to trigger our ToO request. HST is essential for these observations as it is the only telescope that has the spectroscopic capabilities in the Far ultraviolet that is needed for these measurements. ------------------------------------------------------------------------------------ Observations Description ------------------------ We plan to observe two Target of Opportunity comets, each for 5 orbits (totaling 10 orbits). These visits both consist of the following observations: - 4 orbits with STIS/FUV MAMA using the E140M grating, centered on the nucleus to measure the D/H ratio - 1 orbit with the same set up, but pointing off the nucleus where the comet's Ly-a emission is optically thin. We have identified two potential targets (C/2013 US10 Catalina and C/2013 X1 Panstarrs), but these comets are currently still far from the Sun and the extrapolation of their brightness are not yet reliable. Additionally, at least one or two bright new comets are discovered every year, and a better target might present itself. We therefore request these observations in the Target of Opportunity category. We have combined archival observations by HST with ETC estimates to provide realistic estimates for D/H measurements and to optimize our observing 14257( 16) - 19-May-2016 17:58:01 - [ 2] strategy. Comet C/2001 Q4 (NEAT) was observed with HST/STIS between April 23rd to 27th, 2004. To get an estimate of the brightness of the DI line, we scale the measured flux of comet NEAT by the heliocentric distance r, geocentric distance D, and its water production Q (ignoring the Swings effect on the fluorescent efficiency of the Ly-a line as we will only observe at dD > 20 km/s), and the same D/H ratio as to comet NEAT. For each comet, we request a total of 5 consecutive orbits, in all of which we use STIS' E140M grating with the 0.2" x 6" slit. This slit was used successfully to detect D in C/NEAT and provides a five-fold improvement in sensitivity compared to the standard 0.2" x 0.2" slit. Four of these orbits should be centered at the comet's nucleus. We request that one orbit is offset by a large distance from the nucleus, so that we can measure the H Ly- emission in a region of the coma where it is optically thin. From these data we can derive a highly reliable H production rate, which is needed for the D/H ratio. This offset should be toward the Sun along the comet-Sun axis to have the minimum column from the Sun to the comet. After each spectroscopic observation, we will acquire a short STIS/CCD exposure to allow us to determine the exact position in the coma with respect to the nucleus. We will use the F28x50LP filter or the F28x50OII if predicted count rates of the comet are too high. Observing conditions are constrained by the combination of optimum brightness and a relative geocentric velocity large enough to Doppler shift the comet's line away from the telluric Ly-a, dD > 20 km/s. We have identified two potential targets and have worked out the observing details for those observations, but will monitor their development to trigger our TOOS. Both comets' geocentric velocity is large enough so that the lower resolution E140M grating (R = 45, 800) can be used to separate the telluric and cometary line. Should one of the targets be observable only during a smaller geocentric velocity, we will consider using the E140H grating instead. A. C/2013 US10 (Catalina) The current prediction is C/2013 US10 is best oberved between Dec 15-31, 2015. Using mv 5, Q_gas~3x10^29/s, r= 1.0 AU, D=1.25 AU, the STIS ETC predicts an excellent SNR of 12 for the DI Ly-a line using the E140M grating. At this distance and production rate, the 5th orbit should have an offset of 100 arcsec from the nucleus towards the Sun. B. C/2013 X1 (Panstarrs) Observing conditions for C/2013 X1 would be best between May 11 - June 11, 2016. Using mv 6.7, Q_gas~8x10^28/s, r= 1.5 AU, D=0.74 AU, we calculate a FoM of 0.14 and a flux of 2.1 x 10-15 erg/s/cm2. For this scenario, the ETC yields a SNR of 5. At this distance and production rate, the 5th orbit should have an offset of 45 arcsec from the nucleus towards the Sun. ------------------------------------------------------------------------------------ 14257( 16) - 19-May-2016 17:58:01 - [ 3] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 TARGET NAME: C2013US10 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET Comet C/2013 US10 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=.8229686842714407, E=1.000384580127557, I=148.8754312250078 , O=186.1395352627515 , W=340.3513189554529 , T=15-NOV-2015:17:00:00, TTimeScale=TDB, EQUINOX=J2000, EPOCH=02-NOV-2014, EpochTimeScale=TDB ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 5 Orbital elements reference: JPL #54 Predicted optimal observing time Dec 15-31, 2015 Ephemeris Center: EARTH Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 5 TARGET NAME: C2013US10-OFFSET ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET Comet C/2013 US10 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=.8229686842714407, E=1.000384580127557, TYPE=POS_ANGLE, RAD=350, ANG=0, REF=SUN I=148.8754312250078, O=186.1395352627515, W=340.3513189554529 , T=15-NOV-2015:17:00:00, TTimeScale=TDB, EQUINOX=J2000, EPOCH=02-NOV-2014, EpochTimeScale=TDB ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 5 Orbital elements reference: JPL #54 Predicted optimal observing time Dec 15-31, 2015 Ephemeris Center: EARTH Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 14257( 16) - 19-May-2016 17:58:01 - [ 4] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 4 TARGET NAME: C2013X1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET Comet C/2013 X1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=1.314353796433672, E=1.00101952188355, I=163.2298012978591, O=130.9600582567145, W=164.4482176452008, T=20-APR-2016:17:06:48, TTimeScale=UTC, EQUINOX=J2000, EPOCH=12-MAY-2016:00:00:00, EpochTimeScale=TDB, A1=5.910011291504E-8, A2=1.104533314705E-8, A3=1.639675974846E-8 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 7 Orbital elements reference: JPL #104 Observations June 10-15 2016 Ephemeris Center: EARTH Ephemeris Uncertainty: 5 S Acquisition Uncertainty: 15 " Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 14257( 16) - 19-May-2016 17:58:01 - [ 5] TARGET LIST Solar System Targets ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 6 TARGET NAME: C2013X1-OFFSET ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET Comet C/2013 X1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 TARGET POSITION LEVEL 2 TYPE=COMET, Q=1.314353796433672, E=1.00101952188355, TYPE=POS_ANGLE, RAD=45, ANG=0, REF=SUN I=163.2298012978591, O=130.9600582567145, W=164.4482176452008, T=20-APR-2016:17:06:48, TTimeScale=UTC, EQUINOX=J2000, EPOCH=12-MAY-2016:00:00:00, EpochTimeScale=TDB, A1=5.910011291504E-8, A2=1.104533314705E-8, A3=1.639675974846E-8 ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 WINDOWS ------------------------------------------------------------------------------------------------------------------------------------ DATA COMMENTS V = 7 Orbital elements reference: JPL #104 Observations June 10-15 2016 Ephemeris Center: EARTH Ephemeris Uncertainty: 5 S Acquisition Uncertainty: 15 " Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 14257( 16) - 19-May-2016 17:58:01 - [ 6] Visit: 34 (Comet 1 orbit 1 on nucleus) Visit Requirements: BETWEEN 15-DEC-2015:00:00:00 AND 31-DEC-2015:23:59:00 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 C2013US10 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013US10 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S -MAMA see below (2095 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013US10 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S (1 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013US10 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013US10 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2095.0 S -MAMA C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 N/A C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 N/A 14257( 16) - 19-May-2016 17:58:01 - [ 7] Visit: 35 (Comet 1 orbit 2 on nucleus) Visit Requirements: AFTER 34 BY 0.9 Orbits TO 1.1 Orbits 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 C2013US10 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013US10 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S -MAMA see below (2095 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013US10 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S (1 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013US10 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013US10 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2095.0 S -MAMA C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 N/A C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 N/A 14257( 16) - 19-May-2016 17:58:01 - [ 8] Visit: 36 (Comet 1 orbit 3 on nucleus) Visit Requirements: AFTER 38 BY 0.9 Orbits TO 1.1 Orbits 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 C2013US10 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013US10 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S -MAMA see below (2095 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013US10 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S (1 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013US10 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013US10 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2095.0 S -MAMA C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 N/A C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 N/A 14257( 16) - 19-May-2016 17:58:01 - [ 9] Visit: 37 (Comet 1 orbit 4 on nucleus) Visit Requirements: AFTER 36 BY 0.9 Orbits TO 1.1 Orbits 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 C2013US10 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013US10 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S -MAMA see below (2095 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013US10 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S (1 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013US10 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013US10 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2095.0 S -MAMA C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 N/A C2013US10 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 N/A 14257( 16) - 19-May-2016 17:58:01 - [ 10] Visit: 38 (Comet 1 orbit 5 off nucleus) Visit Requirements: AFTER 35 BY 0.9 Orbits TO 1.1 Orbits 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 C2013US10-O STIS/FUV ACCUM 6X0.2 E140M 1425 1 1632.0 S FFSET -MAMA (1632 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013US10-O STIS/CCD ACCUM F28X50LP MIRROR 1 1 S FFSET see below (754.2 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013US10-OFFSET 1 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 N/A -MAMA C2013US10-OFFSET 2 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 377.1 S C2013US10-OFFSET 2 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 377.1 S 14257( 16) - 19-May-2016 17:58:01 - [ 11] Visit: 39 (Comet 2 orbit 1 on nucleus) Visit Requirements: BETWEEN 10-JUN-2016 AND 15-JUN-2016 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 C2013X1 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) REQ EPHEM CORR CORRE1; GS ACQ SCENARIO SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013X1 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S REQ EPHEM CORR CORRE1 -MAMA see below (2044 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013X1 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S REQ EPHEM CORR CORRE1 see below (0.2 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013X1 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013X1 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2044.0 S -MAMA C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 0.1 S C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 0.1 S 14257( 16) - 19-May-2016 17:58:01 - [ 12] Visit: 40 (Comet 2 orbit 2 on nucleus) Visit Requirements: BETWEEN 10-JUN-2016 AND 15-JUN-2016 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 C2013X1 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) REQ EPHEM CORR CORRE2; GS ACQ SCENARIO SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013X1 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S REQ EPHEM CORR CORRE2 -MAMA see below (2044 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013X1 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S REQ EPHEM CORR CORRE2 see below (0.2 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013X1 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013X1 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2044.0 S -MAMA C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 0.1 S C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 0.1 S 14257( 16) - 19-May-2016 17:58:01 - [ 13] Visit: 41 (Comet 2 orbit 3 on nucleus) Visit Requirements: BETWEEN 10-JUN-2016 AND 15-JUN-2016 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 C2013X1 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) REQ EPHEM CORR CORRE3; GS ACQ SCENARIO SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013X1 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S REQ EPHEM CORR CORRE3 -MAMA see below (2044 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013X1 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S REQ EPHEM CORR CORRE3 see below (0.2 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013X1 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013X1 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2044.0 S -MAMA C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 0.1 S C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 0.1 S 14257( 16) - 19-May-2016 17:58:01 - [ 14] Visit: 42 (Comet 2 orbit 4 on nucleus) Visit Requirements: BETWEEN 10-JUN-2016 AND 15-JUN-2016 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 C2013X1 STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) REQ EPHEM CORR CORRE4; GS ACQ SCENARIO SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013X1 STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S REQ EPHEM CORR CORRE4 -MAMA see below (2044 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013X1 STIS/CCD ACCUM F28X50LP MIRROR 1 1 S REQ EPHEM CORR CORRE4 see below (0.2 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013X1 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013X1 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2044.0 S -MAMA C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 0.1 S C2013X1 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 0.1 S 14257( 16) - 19-May-2016 17:58:01 - [ 15] Visit: 43 (Comet 2 orbit 5 off nucleus) Visit Requirements: BETWEEN 10-JUN-2016 AND 15-JUN-2016 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 C2013X1-OFF STIS/CCD ACQ F28X50LP MIRROR 1 1 S (1 S) REQ EPHEM CORR CORRE5; SET GS ACQ SCENARIO SINGLE ------------------------------------------------------------------------------------------------------------------------------------ 2 C2013X1-OFF STIS/FUV ACCUM 6X0.2 E140M 1425 1 2200 S REQ EPHEM CORR CORRE5 SET -MAMA see below (2044 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 C2013X1-OFF STIS/CCD ACCUM F28X50LP MIRROR 1 1 S REQ EPHEM CORR CORRE5 SET see below (0.2 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 | ------------------------------------------------------------------------------------------------------------------------------------ C2013X1-OFFSET 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A C2013X1-OFFSET 2 STIS/FUV ACCUM 6X0.2 E140M 1425 none none none none 1 2044.0 S -MAMA C2013X1-OFFSET 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 1 1 0.1 S C2013X1-OFFSET 3 STIS/CCD ACCUM F28X50LP MIRROR none none none 2 1 0.1 S 14257( 16) - 19-May-2016 17:58:01 - [ 16] Summary Form for Proposal 14257 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 6X0.2, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 34 BY 0.9 Orbits TO 1.1 Orbits, AFTER 35 BY 0.9 Orbits TO 1.1 Orbits, AFTER 36 BY 0.9 Orbits TO 1.1 Orbits, AFTER 38 BY 0.9 Orbits TO 1.1 Orbits, BETWEEN 10-JUN-2016 AND 15-JUN-2016, BETWEEN 15-DEC-2015:00:00:00 AND 31-DEC-2015:23:59:00, GS ACQ SCENARIO SINGLE, REQ EPHEM CORR CORRE1, REQ EPHEM CORR CORRE2, REQ EPHEM CORR CORRE3, REQ EPHEM CORR CORRE4, REQ EPHEM CORR CORRE5 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E140M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names C2013US10, C2013US10-OFFSET, C2013X1, C2013X1-OFFSET ------------------------------------------------------------------------------------------------------------------------------------