13055 (Stsci Edit Number: 6, Created: Wednesday, May 22, 2013 8:04:16 PM EST) - Overview

Proposal 13055 (STScI Edit Number: 6, Created: Wednesday, May 22, 2013 8:04:16 PM EST) - Overview

13055 - Orbital Evolution and Stability of the Inner Uranian Moons Cycle: 20, Proposal Category: GO (Availability Mode: SUPPORTED)

INVESTIGATORS Name Institution E-Mail Dr. Mark R. Showalter (PI) (Contact) SETI Institute [email protected] Dr. Jack J. Lissauer (CoI) NASA Ames Research Center [email protected] Prof. Imke de Pater (CoI) University of California - Berkeley [email protected] Dr. Richard G. French (CoI) Wellesley College [email protected]

VISITS Visit Targets used in Visit Configurations used in Visit Orbits Used Last Orbit Planner Run OP Current with Visit? 41 (20) URANUS-MAB-SOUTH- WFC3/UVIS 1 22-May-2013 21:03:00.0 yes CUPID 42 (21) URANUS-MAB-NORTH- WFC3/UVIS 1 22-May-2013 21:03:08.0 yes CUPID 43 (20) URANUS-MAB-SOUTH- WFC3/UVIS 1 22-May-2013 21:03:14.0 yes CUPID 44 (21) URANUS-MAB-NORTH- WFC3/UVIS 1 22-May-2013 21:03:19.0 yes CUPID 45 (20) URANUS-MAB-SOUTH- WFC3/UVIS 1 22-May-2013 21:03:25.0 yes CUPID 46 (21) URANUS-MAB-NORTH- WFC3/UVIS 1 22-May-2013 21:03:30.0 yes CUPID 50 (23) URANUS-MAB-CUPID WFC3/UVIS 1 22-May-2013 21:03:36.0 yes 51 (21) URANUS-MAB-NORTH- WFC3/UVIS 1 22-May-2013 21:03:43.0 yes CUPID

1 Proposal 13055 (STScI Edit Number: 6, Created: Wednesday, May 22, 2013 8:04:16 PM EST) - Overview Visit Targets used in Visit Configurations used in Visit Orbits Used Last Orbit Planner Run OP Current with Visit? 52 (20) URANUS-MAB-SOUTH- WFC3/UVIS 1 22-May-2013 21:03:48.0 yes CUPID 53 (21) URANUS-MAB-NORTH- WFC3/UVIS 1 22-May-2013 21:03:54.0 yes CUPID 54 (20) URANUS-MAB-SOUTH- WFC3/UVIS 1 22-May-2013 21:03:59.0 yes CUPID 55 (21) URANUS-MAB-NORTH- WFC3/UVIS 1 22-May-2013 21:04:04.0 yes CUPID 56 (20) URANUS-MAB-SOUTH- WFC3/UVIS 1 22-May-2013 21:04:09.0 yes CUPID 13 Total Orbits Used

ABSTRACT Nine densely-packed inner moons of Uranus show signs of chaos and orbital instability over a variety of time scales. Many moons show measureable orbital changes within a decade or less. Long-term integrations predict that some moons could collide in less than one million years. One faint ring embedded in the system may, in fact, be the debris left behind from an earlier such collision. Meanwhile, the nearby moon Mab falls well outside the influence of the others but nevertheless shows rapid, as yet unexplained, changes in its orbit. It is embedded within a dust ring that also shows surprising variability. A highly optimized series of observations with WFC3 over the next three cycles will address some of the fundamental open questions about this dynamically active system: Do the orbits truly show evidence of chaos? If so, over what time scales? What can we say about the masses of the moons involved? What is the nature of the variations in Mab's orbit? Is Mab's motion predictable or random? Astrometry will enable us to derive the orbital elements of these moons with 10-km precision. This will be sufficient to study the year-by-year changes and, combined with other data from 2003-2007, the decadal evolution of the orbits. The pairing of precise astrometry with numerical integrations will enable us to derive new dynamical constraints on the masses of these moons. Mass is the fundamental unknown quantity currently limiting our ability to reproduce the interactions within this system. This program will also capitalize upon our best opportunity for nearly 40 years to study the unexplained variations in Uranus's faint outer rings.

OBSERVING DESCRIPTION Astrometry of the Uranian satellites is accomplished via three visits in 2012 and three in 2013. Each visit consists of a sequence of long exposures through the broad F350LP filter. Visits begin with one unsaturated image of the planet for geometric reference and calibration checking. The orbital 2 Proposal 13055 (STScI Edit Number: 6, Created: Wednesday, May 22, 2013 8:04:16 PM EST) - Overview plane is oriented within 20 degrees of the X-axis in the images to separate the moons from the wide vertical band caused by saturation bloom from the planet. From orbit to orbit, Uranus is shifted upward and downward by ~ 40 pixels within the 512x512 subarray to achieve most of the benefits of dithering; however, moons can always be distinguished from hot pixels by their motion. Each visit is timed to place Cupid and Mab near their maximum orbital elonagations to ensure that these high-priority targets are both detectable. The other moons will be captured by chance and require no special targeting. Timing constraints are specified to ensure that we maximize the time baseline within both 2012 and 2013. We also ensure that Mab is captured at both north and south elongations each year to better constrain its orbital eccentricity.

ADDITIONAL COMMENTS Visits 44-46 are designated ON HOLD and are provided as an alternative set to 41-43. Schedule either 41-43 or 44-46; they are scientifically equivalent. Similarly, Visits 54-56 are provided as a scheduling alternative to 51-53; schedule either set of three. Note also that Uranus falls within the restricted range of RA. Nevertheless, we have not selected SCHED=100 because our scheduling constraints are defined by other factors. With SCHED=30-50, we obtain ~ 3 minutes of extra integration time per visit without affecting schedulability.

3 Proposal 13055-Visit41OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (20) # Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. TobescheduledinOctober2012. Special Requirements:SCHED30%;ORIENT6DTO46D;186D226BEFORE01-NOV-2012:00:00:00 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit41,completed 292 s F350LP, 8x F845M, 25s Label SOUTH-CUPID URANUS-MAB- Name (20) URANUS-MA Target B-SOUTH-CUPID (20) URANUS-MA B-SOUTH-CUPID STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F845M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 4 Level 3 SAME POSAS1 POS TARG0,1.5 Special Reqs. t inVisit41 Sequence 1-2Non-In t inVisit41 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN60120, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 292 SecsX8 [==>] 25 Secs Exp. Time/[ActualDur.] Thu May2301:04:17GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit41OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 5 Proposal 13055-Visit42OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (21) # 41. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,northUranus. TobescheduledinNovember2012,atleasttwoweeksafterVisit Special Requirements:SCHED30%;ORIENT6DTO46D;186D226AFTER41BY14D60BETWEEN01-NOV-2012:00:00:00 AND01-DEC-2012:00:00:00 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit42,completed 292 s F350LP, 8x F467M, 10s Label NORTH-CUPID URANUS-MAB- Name Target B-NORTH-CUPID (21) URANUS-MA B-NORTH-CUPID (21) URANUS-MA STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F467M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 6 Level 3 SAME POSAS1 POS TARG0,-1.5 Special Reqs. t inVisit42 Sequence 1-2Non-In t inVisit42 Sequence 1-2Non-In Groups 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN240300, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 292 SecsX8 [==>] 10 Secs Exp. Time/[ActualDur.] Thu May2301:04:18GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit42OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 7 Proposal 13055-Visit43OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (20) # 42. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. TobescheduledinDecember2012,atleasttwoweeksafterVisit Special Requirements:SCHED30%;ORIENT6DTO46D;186D226AFTER42BY14D60BETWEEN01-DEC-2012:00:00:00 AND31-JAN-2013:00:00:00 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit43,withdrawn 292 s F350LP, 8x F621M, 3s Label SOUTH-CUPID URANUS-MAB- Name Target B-SOUTH-CUPID (20) URANUS-MA B-SOUTH-CUPID (20) URANUS-MA STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F621M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 8 Level 3 SAME POSAS1 POS TARG0,0 Special Reqs. t inVisit43 Sequence 1-2Non-In t inVisit43 Sequence 1-2Non-In Groups 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN60120, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 292 SecsX8 [==>] 3 Secs Exp. Time/[ActualDur.] Thu May2301:04:20GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit43OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 9 Proposal 13055-Visit44OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (21) # On HoldComments:Visits44-46areprovidedasanalternativeto 41-43forextraschedulingflexibility.Scheduleeitherthesetor44-46;theyarescientificallyequivalent. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,northUranus. TobescheduledinOctober2012. Special Requirements:SCHED30%;ORIENT6DTO46D;186D226BEFORE01-NOV-2012:00:00:00;ONHOLD Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit44,withdrawn 292 s F350LP, 8x F845M, 25s Label NORTH-CUPID URANUS-MAB- Name Target B-NORTH-CUPID (21) URANUS-MA B-NORTH-CUPID (21) URANUS-MA STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F845M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 10 Level 3 SAME POSAS1 POS TARG0,1.5 Special Reqs. t inVisit44 Sequence 1-2Non-In t inVisit44 Sequence 1-2Non-In Groups 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN240300, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 292 SecsX8 [==>] 25 Secs Exp. Time/[ActualDur.] Thu May2301:04:21GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit44OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 11 Proposal 13055-Visit45OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (20) # On HoldComments:Visits44-46areprovidedasanalternativeto 41-43forextraschedulingflexibility.Scheduleeitherthesetor44-46;theyarescientificallyequivalent. 51. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. TobescheduledinNovember2012,atleasttwoweeksafterVisit Special Requirements:SCHED30%;ORIENT6DTO46D;186D226AFTER44BY14D60BETWEEN01-NOV-2012:00:00:00 AND01-DEC-2012:00:00:00;ONHOLD Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit45,withdrawn 292 s F350LP, 8x F467M, 10s Label SOUTH-CUPID URANUS-MAB- Name B-SOUTH-CUPID (20) URANUS-MA B-SOUTH-CUPID (20) URANUS-MA Target STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F467M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 12 Level 3 SAME POSAS1 POS TARG0,-1.5 Special Reqs. t inVisit45 Sequence 1-2Non-In t inVisit45 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN60120, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN 60, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 292 SecsX8 [==>] 10 Secs Exp. Time/[ActualDur.] Thu May2301:04:22GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit45OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 13 Proposal 13055-Visit46OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (21) # On HoldComments:Visits44-46areprovidedasanalternativeto 41-43forextraschedulingflexibility.Scheduleeitherthesetor44-46;theyarescientificallyequivalent. 42. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,northUranus. TobescheduledinDecember2012,atleasttwoweeksafterVisit Special Requirements:SCHED30%;ORIENT6DTO46D;186D226AFTER45BY14D60BETWEEN01-DEC-2012:00:00:00 AND31-JAN-2013:00:00:00;ONHOLD Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit46,withdrawn 292 s F350LP, 8x F621M, 3s Label NORTH-CUPID URANUS-MAB- Name B-NORTH-CUPID (21) URANUS-MA B-NORTH-CUPID (21) URANUS-MA Target STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F621M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 14 Level 3 SAME POSAS1 POS TARG0,0 Special Reqs. t inVisit46 Sequence 1-2Non-In t inVisit46 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN240300, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN 60, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 292 SecsX8 [==>] 3 Secs Exp. Time/[ActualDur.] Thu May2301:04:23GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit46OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 15 Proposal 13055-Visit50OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (23) # This visitreplaces43whichwasmissedduetoanHSTsafing. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. Special Requirements:SCHED40%;ORIENT6DTO46D;186D226BETWEEN01-JAN-2013:00:00:00AND01-NOV-2013:00:00:00 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit50,implementation 288 s F350LP, 8x F845M, 15s Label CUPID URANUS-MAB- Name B-CUPID (23) URANUS-MA B-CUPID (23) URANUS-MA Target STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F845M Spectral Els. F350LP CR-SPLIT=NO Opt. Params. CR-SPLIT=NO 16 Level 3 Special Reqs. t inVisit50 Sequence 1-2Non-In t inVisit50 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN0 NOT OLGOFMABBETWEEN060, Window BETWEEN 300360 NOT OLGOFMABFROMEARTH BETWEEN 120240, NOT OLGOFMABFROMEARTH EARTH GT4", SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN 60, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 15 Secs Exp. Time/[ActualDur.] Thu May2301:04:24GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit50OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 17 Proposal 13055-Visit51OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (21) # Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,northUranus. TobescheduledinJuly2013. Special Requirements:SCHED50%;ORIENT6DTO46D;186D226BETWEEN31-JAN-2013:00:00:00AND01-AUG-2013:00:00:00 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit51,implementation 288 s F350LP, 8x F621M, 3s Label NORTH-CUPID URANUS-MAB- Name (21) URANUS-MA Target B-NORTH-CUPID (21) URANUS-MA B-NORTH-CUPID STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F621M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 18 Level 3 SAME POSAS1 O SINGLE GS ACQSCENARI POS TARG0,1.5; Special Reqs. t inVisit51 Sequence 1-2Non-In t inVisit51 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN240300, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 3 Secs Exp. Time/[ActualDur.] Thu May2301:04:25GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit51OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 19 Proposal 13055-Visit52OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (20) # 51. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. TobescheduledinAugust2013,atleasttwoweeksafterVisit Special Requirements:SCHED40%;ORIENT186DTO226D;AFTER51BY14D60BETWEEN01-AUG-2013:00:00:00AND01-SEP-2013:00:00:00 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit52,implementation 288 s F350LP, 8x F467M, 10s Label SOUTH-CUPID URANUS-MAB- Name Target B-SOUTH-CUPID (20) URANUS-MA B-SOUTH-CUPID (20) URANUS-MA STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F467M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 20 Level 3 SAME POSAS1 O BASE1B3 GS ACQSCENARI POS TARG0,-1.5; Special Reqs. t inVisit52 Sequence 1-2Non-In t inVisit52 Sequence 1-2Non-In Groups 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN60120, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 10 Secs Exp. Time/[ActualDur.] Thu May2301:04:26GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit52OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 21 Proposal 13055-Visit53OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (21) # 52. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,northUranus. TobescheduledinSeptember2013,atleasttwoweeksafterVisit Special Requirements:SCHED30%;ORIENT186DTO226D;AFTER01-SEP-2013:00:00:00;52BY14D60 Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit53,implementation 288 s F350LP, 8x F845M, 25s Label NORTH-CUPID URANUS-MAB- Name Target B-NORTH-CUPID (21) URANUS-MA B-NORTH-CUPID (21) URANUS-MA STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F845M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 22 Level 3 SAME POSAS1 O BASE1B3 GS ACQSCENARI POS TARG0,0; Special Reqs. t inVisit53 Sequence 1-2Non-In t inVisit53 Sequence 1-2Non-In Groups 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN240300, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 25 Secs Exp. Time/[ActualDur.] Thu May2301:04:27GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit53OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 23 Proposal 13055-Visit54OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (20) # On HoldComments:Visits54-56areprovidedasanalternativeto 51-53forextraschedulingflexibility.Scheduleeitherthesetor54-56;theyarescientificallyequivalent. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. TobescheduledinJuly2013. Special Requirements:SCHED50%;ORIENT6DTO46D;186D226BETWEEN31-JAN-2013:00:00:00AND01-AUG-2013:00:00:00; ONHOLD Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit54,implementation 288 s F350LP, 8x F621M, 3s Label SOUTH-CUPID URANUS-MAB- Name Target B-SOUTH-CUPID (20) URANUS-MA B-SOUTH-CUPID (20) URANUS-MA STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F621M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 24 Level 3 SAME POSAS1 POS TARG0,1.5 Special Reqs. t inVisit54 Sequence 1-2Non-In t inVisit54 Sequence 1-2Non-In Groups 60, NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN60120, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 3 Secs Exp. Time/[ActualDur.] Thu May2301:04:28GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit54OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 25 Proposal 13055-Visit55OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (21) # On HoldComments:Visits54-56areprovidedasanalternativeto 51-53forextraschedulingflexibility.Scheduleeitherthesetor54-56;theyarescientificallyequivalent. 54. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,northUranus. TobescheduledinAugust2013,atleasttwoweeksafterVisit Special Requirements:SCHED40%;ORIENT6DTO46D;186D226AFTER54BY14D60BETWEEN01-AUG-2013:00:00:00 AND01-SEP-2013:00:00:00;ONHOLD Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit55,implementation 288 s F350LP, 8x F467M, 10s Label NORTH-CUPID URANUS-MAB- Name B-NORTH-CUPID (21) URANUS-MA B-NORTH-CUPID (21) URANUS-MA Target STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F467M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 26 Level 3 SAME POSAS1 POS TARG0,-1.5 Special Reqs. t inVisit55 Sequence 1-2Non-In t inVisit55 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN240300, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN 60, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 10 Secs Exp. Time/[ActualDur.] Thu May2301:04:28GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit55OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 27 Proposal 13055-Visit56OrbitalEvolutionandStabilityoftheInnerUranianMoons Exposures Solar System Targets Visit 2 1 # (20) # On HoldComments:Visits54-56areprovidedasanalternativeto 51-53forextraschedulingflexibility.Scheduleeitherthesetor54-56;theyarescientificallyequivalent. 55. Comments: Uranuswiththeringplaneorientedwithin20degreesofhorizontal.MabandCupidnearmaximumelongation,southUranus. TobescheduledinSeptember2013,atleasttwoweeksafterVisit Special Requirements:SCHED30%;ORIENT6DTO46D;186D226AFTER01-SEP-2013:00:00:00;55BY14D 60D;ONHOLD Scientific Instruments:WFC3/UVIS Diagnostic Status:NoDiagnostics Proposal 13055,Visit56,implementation 288 s F350LP, 8x F845M, 25s Label SOUTH-CUPID URANUS-MAB- Name B-SOUTH-CUPID (20) URANUS-MA B-SOUTH-CUPID (20) URANUS-MA Target STD=URANUS Level 1 UVIS2-C512C-SUB WFC3/UVIS, ACCUM, UVIS2-C512C-SUB WFC3/UVIS, ACCUM, Config,Mode,Aperture Level 2 F350LP F845M Spectral Els. CR-SPLIT=NO CR-SPLIT=NO Opt. Params. 28 Level 3 SAME POSAS1 POS TARG0,0 Special Reqs. t inVisit56 Sequence 1-2Non-In t inVisit56 Sequence 1-2Non-In Groups NOT OLGOFCUPIDBETWEEN0 OLG OFMABBETWEEN60120, Window EARTH GT4" SEP OFCUPIDARIELFROM GT 4", SEP OFMABARIELFROMEARTH EARTH GT4", SEP OFCUPIDUMBRIELFROM EARTH GT4", SEP OFMABUMBRIELFROM EARTH GT5", SEP OFCUPIDTITANIAFROM EARTH GT5", SEP OFMABTITANIAFROM EARTH GT5", SEP OFCUPIDOBERONFROM EARTH GT5", SEP OFMABOBERONFROM 300 360, NOT OLGOFCUPIDBETWEEN 120 240, NOT OLGOFCUPIDBETWEEN 60, [==>(Copy 8)] [==>(Copy 7)] [==>(Copy 6)] [==>(Copy 5)] [==>(Copy 4)] [==>(Copy 3)] [==>(Copy 2)] [==>(Copy 1)] 288 SecsX8 [==>] 25 Secs Exp. Time/[ActualDur.] Thu May2301:04:29GMT2013 EARTH Ephem Center Orbit [1] [1] Proposal 13055-Visit56OrbitalEvolutionandStabilityoftheInnerUranianMoons Orbit Structure 29