NEW HORIZONS - University of Sydney · NEW HORIZONS 10291029Days Since Launch Days Since Launch...
Transcript of NEW HORIZONS - University of Sydney · NEW HORIZONS 10291029Days Since Launch Days Since Launch...
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NEW HORIZONSNEW HORIZONSNEW HORIZONSNEW HORIZONS
NASANASANASANASANASANASANASANASA’’’’’’’’s Plutos Plutos Plutos Plutos Plutos Plutos Plutos Pluto--------Kuiper Belt Mission:Kuiper Belt Mission:Kuiper Belt Mission:Kuiper Belt Mission:Kuiper Belt Mission:Kuiper Belt Mission:Kuiper Belt Mission:Kuiper Belt Mission:
““““““““The First Mission To the Ninth PlanetThe First Mission To the Ninth PlanetThe First Mission To the Ninth PlanetThe First Mission To the Ninth PlanetThe First Mission To the Ninth PlanetThe First Mission To the Ninth PlanetThe First Mission To the Ninth PlanetThe First Mission To the Ninth Planet
And the Solar SystemAnd the Solar SystemAnd the Solar SystemAnd the Solar SystemAnd the Solar SystemAnd the Solar SystemAnd the Solar SystemAnd the Solar System’’’’’’’’s Third Zones Third Zones Third Zones Third Zones Third Zones Third Zones Third Zones Third Zone””””””””
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NEW HORIZONSNEW HORIZONSNEW HORIZONSNEW HORIZONS� 1029102910291029 Days Since LaunchDays Since LaunchDays Since LaunchDays Since Launch
� 0625 Days Since Jupiter0625 Days Since Jupiter0625 Days Since Jupiter0625 Days Since Jupiter
� 2433 Days Still To Pluto2433 Days Still To Pluto2433 Days Still To Pluto2433 Days Still To Pluto
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NEW HORIZONSNEW HORIZONSNEW HORIZONSNEW HORIZONS
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A MISSION OF FIRSTSA MISSION OF FIRSTSA MISSION OF FIRSTSA MISSION OF FIRSTS
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Pluto was discovered in January-February 1930, by Clyde Tombaugh at Lowell Observatory, Arizona.
PLUTOPLUTOPLUTOPLUTO’’’’S DISCOVERYS DISCOVERYS DISCOVERYS DISCOVERY
� Pluto is a Small, Distant World� <1% Mars’s Max Apparent Diameter (0.1 arcsec)� And 50,000 times fainter than Mars (V~14)
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BEST HST IMAGESBEST HST IMAGESBEST HST IMAGESBEST HST IMAGES
� Strong Surface VariegationStrong Surface VariegationStrong Surface VariegationStrong Surface Variegation
� Polar FeaturesPolar FeaturesPolar FeaturesPolar Features
� Stern, Buie, & Trafton (1997)Stern, Buie, & Trafton (1997)Stern, Buie, & Trafton (1997)Stern, Buie, & Trafton (1997)
HST Observations (1994):HST Observations (1994):HST Observations (1994):HST Observations (1994):
True Color Map(Young et al.)
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N2
PlutoPlutoPlutoPluto’’’’s surface contains s surface contains s surface contains s surface contains
at least three volatiles, at least three volatiles, at least three volatiles, at least three volatiles,
each with different each with different each with different each with different
physiophysiophysiophysio----chemical chemical chemical chemical
properties.properties.properties.properties.
CO
SURFACE SURFACE SURFACE SURFACE COMPOSITIONCOMPOSITIONCOMPOSITIONCOMPOSITION
CO
� CH4 discovered 1976.� N2 and CO ices were
discovered in the 1990s.� The CH4 and CO
distribution is patchy.� N2 dominates ~10:1.
Douté et al 1999, Icarus 142
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� First detected in 1985 and 1988 by a clear refractive signature, seen in stellar occultations; the surface pressure is ~10 µbar.
� N2, CO, & CH4, plus trace photo- chemical species.
� Evidence for haze and/or temperature T(z) structure.
� Strong seasonal effects are expected.
� The atmosphere is likely hydrodynamically escaping,several km of ices lost in 4 Gyr.
� Both the 2002 and 2006 occultations revealed distinct structural & pressure changes.
ATMOSPHEREATMOSPHEREATMOSPHEREATMOSPHERE
Quasi-Bound
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AND A CHANGED AND A CHANGED AND A CHANGED AND A CHANGED ATMOSPHERE NOWATMOSPHERE NOWATMOSPHERE NOWATMOSPHERE NOW
2006 June 12/AAT Occultation LightcurveDick French and Kevin Shoemaker
SwRI/Lowell/Wellesley Team
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� Charon was discovered, by accident, in July 1978 by Jim Christyof the U.S. Naval Observatory.� Charon is in synchronous orbit ~19,400 km from Plut o, and spin-spin-orbit locked with a 6.4 day period.� Charon’s surface is covered in H 2O-ice; there is no detectable atmosphere.
0.9 arc-sec
PLUTOPLUTOPLUTOPLUTO’’’’S LARGE MOON: S LARGE MOON: S LARGE MOON: S LARGE MOON: CHARONCHARONCHARONCHARON
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BUT THIS DOUBLE SYSTEM BUT THIS DOUBLE SYSTEM BUT THIS DOUBLE SYSTEM BUT THIS DOUBLE SYSTEM IS A QUADRUPLEIS A QUADRUPLEIS A QUADRUPLEIS A QUADRUPLE
Nix
Hydra
Weaver, Stern, Mutchler, Steffl, et al. (2005)
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A giant impact origin for Pluto-Charon was first suggested in the 1980s (McKinnon 1984, 1989).
SATELLITE ORIGIN SATELLITE ORIGIN SATELLITE ORIGIN SATELLITE ORIGIN
The giant impact was further strengthened by the discoveries of Nix and Hydra in co-planar orbits to Charon.
Numerical models seem incapable of plausibly producing Charon otherwise (Stern, McKinnon, & Lunine 1997; Canup 2005).
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Pluto is a primarily rocky, not icy body!
From the Densities of Pluto & Charon, From the Densities of Pluto & Charon, From the Densities of Pluto & Charon, From the Densities of Pluto & Charon,
One Can Derive Crude Interior ModelsOne Can Derive Crude Interior ModelsOne Can Derive Crude Interior ModelsOne Can Derive Crude Interior Models
DONDONDONDON’’’’T JUDGE THIS BOOKT JUDGE THIS BOOKT JUDGE THIS BOOKT JUDGE THIS BOOKBY ITS COVERBY ITS COVERBY ITS COVERBY ITS COVER
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A Dwarf Planet and A True Binary WorldA Dwarf Planet and A True Binary WorldA Dwarf Planet and A True Binary WorldA Dwarf Planet and A True Binary World
PLUTO HERALDED A PLUTO HERALDED A PLUTO HERALDED A PLUTO HERALDED A NEW CLASS OF PLANETNEW CLASS OF PLANETNEW CLASS OF PLANETNEW CLASS OF PLANET
� Charon’s radius is 50% of Pluto’s.
� Charon’s mass is about 10% of Pluto’s.
� The mutual barycenter is between the two.
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LONE MISFIT?LONE MISFIT?LONE MISFIT?LONE MISFIT?
Old View:Old View:Old View:Old View:
4 Terrestrial Planets4 Terrestrial Planets4 Terrestrial Planets4 Terrestrial Planets
4 Giant Planets4 Giant Planets4 Giant Planets4 Giant Planets
1 Misfit Pluto1 Misfit Pluto1 Misfit Pluto1 Misfit Pluto
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MISFIT NOT!PLUTO’S ABOUND
New View:New View:New View:New View:
4 Terrestrial Planets4 Terrestrial Planets4 Terrestrial Planets4 Terrestrial Planets
4 Giant Planets4 Giant Planets4 Giant Planets4 Giant Planets
Perhaps 1000 Dwarf PlanetsPerhaps 1000 Dwarf PlanetsPerhaps 1000 Dwarf PlanetsPerhaps 1000 Dwarf Planets
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US DECADAL SURVEY:US DECADAL SURVEY:US DECADAL SURVEY:US DECADAL SURVEY:PLUTOPLUTOPLUTOPLUTO----KUIPER BELT MISSIONKUIPER BELT MISSIONKUIPER BELT MISSIONKUIPER BELT MISSION
A Reconnaissance Expedition To Pluto-Charon & the Kuiper Belt
The Highest Priority Medium-Scale Mission New Start
Of The Planetary Decadal Survey
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NASANASANASANASA’’’’S PLUTO MISSION S PLUTO MISSION S PLUTO MISSION S PLUTO MISSION MEASUREMENT OBJECTIVESMEASUREMENT OBJECTIVESMEASUREMENT OBJECTIVESMEASUREMENT OBJECTIVES
Group 1 Objectives: Characterize the global geology and morphology of Pluto and Charon Map surface composition of Pluto and Charon Characterize the neutral atmosphere of Pluto and its escape rate
Group 2 Objectives: Characterize the time variability of Pluto's surface and atmosphere Image Pluto and Charon in stereo Map the terminators of Pluto and Charon with high resolution Map the composition of selected areas of Pluto & Charon at high resolution Characterize Pluto's ionosphere and solar wind interaction Search for neutral species including H, H2, HCN, and CxHy, and other
hydrocarbons and nitriles in Pluto's upper atmosphere Search for an atmosphere around Charon Determine bolometric Bond albedos for Pluto and Charon Map the surface temperatures of Pluto and Charon
Group 3 Objectives: Characterize the energetic particle environment of Pluto and Charon Refine bulk parameters (radii, masses, densities) and orbits of Pluto & Charon Search for magnetic fields of Pluto and Charon Search for additional satellites and rings
Required
Desired
Important
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SO WE PROPOSED IT, SO WE PROPOSED IT, SO WE PROPOSED IT, SO WE PROPOSED IT, WON IT, AND BUILT ITWON IT, AND BUILT ITWON IT, AND BUILT ITWON IT, AND BUILT IT
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2002200220022002----2005200520052005
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AT THE CAPE: AT THE CAPE: AT THE CAPE: AT THE CAPE: NOV 2005NOV 2005NOV 2005NOV 2005
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SPACECRAFT BLOCKSPACECRAFT BLOCKSPACECRAFT BLOCKSPACECRAFT BLOCKDIAGRAMDIAGRAMDIAGRAMDIAGRAM
Stillworking
PowerSwitchingCommands
PowerSwitchingCommandsT
hrus
ter
Val
ve D
rive,
Cat
. Bed
Hea
ters
1PPSCrossStrap #1
1PPSCrossStrap #2
BP
A
BP
A
BP
A
BP
A
ExternalShuntsInternalShunts
Cat. Bed TempSensorsOn AllREAs
RS
-422
INS
TR
UM
EN
TS
G&
C P
roce
ssor
C&
DH
Pro
cess
or
SS
R
Dow
nlin
k T
x
G&
C P
roce
ssor
C&
DH
Pro
cess
or
Dow
nlin
k T
x
SRU
PDU
RTG
Obs. Power Bus (30V +/- 1V)
StarTracker
POWER
GUIDANCE& CONTROL
ComponentPower
I2 C
Mil Std 1553 Bus
LNA
LOR
RI
PE
PS
SI
ALI
CE
RA
LPH
RS
-422
LNA
AftLGA
FwdLGA
SwitchNetwork
RF COMMUNICATIONS
USO
Dip
lexe
r
Com
man
dD
ecod
er
TWTA
Inst
rum
ent
Inte
rfac
eIn
stru
men
tIn
terf
ace
C&DH (PCI Backplane)
SW
AP
StarTracker
SS
R
C&DH (PCI Backplane)
InternalHeaters
THERMALCONTROL
INTEGRATED ELECTRONICS MODULE #1
INTEGRATED ELECTRONICS MODULE #2
Shunt Regulator
Maj
ority
Vot
er&
TLM
LVD
SR
S-4
22
LVD
S
RS
-422
RS
-422
LVD
S
HGA
RIO(7)
RIO(7)
SD
C
MGA
Upl
ink
Rx
CC
DU
plin
k R
xC
CD
P
A1A2A3
LatchValves
0.8 N ACSThrusters
4.4 N ∆∆∆∆VThrusters
Filter
Fill/Drain
Fill/Vent
GHe
N2H4
P
Orifice
PROPULSION
PressureTransducer
C4 D4
B1B2B3
T
C1C2C3
D1D2D3
F1 F2
Hybrid
USO
EPC
EPC
Pow
erS
witc
hing
Cur
rent
Lim
it(8
Slic
es)
Cap
acito
r B
ank
(33m
F)
Driv
ers
(15)
Aux
iliar
yLV
S
TLM
AuxiliaryInterfaces
RE
X, R
eg. R
ange
RE
X, R
eg. R
ange
I2 C
1PPSCrossStrap #2
TWTA
1PPSCrossStrap #1
DC/DC Converter, Uplink/DownlinkDC/DC Converter, IEM Digital
DC/DC Converter, Uplink/DownlinkDC/DC Converter, IEM Digital
Fine SunSensors
Con
trol
(3)
PDB(2)
IMU
IMU
Sun PulseSensors
1553
C
MD
/TLM
STRUCTURE
HARNESS
FLIGHT SOFTWAREC&DH 4.1G&C 4.0Boot 3.8
Autonomy 15
COMMAND & DATA HANDLING
Legend
Checked Out OKNot Checked OutChecked Out With IssueCheckout Not Planned
Modes and States
AS-N
PS-N
PS-H
3A-N
3A-E
AS-EA
AS-SAAS-T
PS-T
3A-T
As of 9/28/07
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SCIENTIFIC PAYLOADSCIENTIFIC PAYLOADSCIENTIFIC PAYLOADSCIENTIFIC PAYLOADInstruments:
� REX radio science & radiometry� RALPH VIS/IR imaging & spectroscopy� ALICE UV imaging spectroscopy� LORRI High-resolution imager� SWAP plasma spectrometer� PEPSSI energetic particle spectrometer� SDC EPO Student Dust Counter
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PAYLOADPAYLOADPAYLOADPAYLOADFUNCTIONAL REDUNDANCYFUNCTIONAL REDUNDANCYFUNCTIONAL REDUNDANCYFUNCTIONAL REDUNDANCY
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OUR ATLAS V 551 OUR ATLAS V 551 OUR ATLAS V 551 OUR ATLAS V 551 LAUNCH VEHICLELAUNCH VEHICLELAUNCH VEHICLELAUNCH VEHICLE
Centaur InterstageAdapter (12.5 ft Dia)
CCB CylindricalInterstage Adapter
RD-180 Engine Common CoreBooster TM (CCB)
SingleRL10 Engine
CentaurUpperStage
5-meter Short PayloadFairing (68 ft)
Solid RocketBoosters
Aft TransitionSkirt/Heat Shield
5-MeterPayload FairingBoattail
CentaurAft StubAdapter
Centaur ForwardLoad Reactor
PayloadAdapter (PLA)
Centaur ConicalInterstage Adapter
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FINISHING TOUCHESFINISHING TOUCHESFINISHING TOUCHESFINISHING TOUCHES
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ALL ABOARD!ALL ABOARD!ALL ABOARD!ALL ABOARD!
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LAUNCH: 19 JAN 2006LAUNCH: 19 JAN 2006LAUNCH: 19 JAN 2006LAUNCH: 19 JAN 2006GOING SUPERSONIC!GOING SUPERSONIC!GOING SUPERSONIC!GOING SUPERSONIC!
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ROUTE OF FLIGHTROUTE OF FLIGHTROUTE OF FLIGHTROUTE OF FLIGHT
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CRUISE 1 OPSCRUISE 1 OPSCRUISE 1 OPSCRUISE 1 OPS
Notes:1. Timeline not to scale.2. AU is Obs. distance from Earth
L+60
(9wks) Instrument Calibration,Commissioning, MVIC OpNav(L+165), Interference test
5x8 2x8 5x8 2x8 3x8 2,7,9,5,3,3,3x8h/wk 2x8h/wk 3x8h/wk 2x8h/wk 7x8 3x8
Solar ConjunctionDOY 323-331
L+365
(5wks) InstrumentCalibration &Commissioning 3A
90 120 150 180 210 240 270 300 330
Instr. Comm. (4wks)
PS-HibernationPS-NormalPS-TCM
AS-NormalAS-TCMAS-EAAS-SA
3A-Normal3A-Encounter3A-TCM
L+75 CDH 3.5 load
L+305 (DOY286)Autonomy Rel. 14
L+211 (DOY 230) CDH 4.1 load
L+253 (DOY 272)GC 4.0 load
L+ 64 Autonomy Rel. 12d
L+ 106 Autonomy Rel. 12e
3A-Enc mode c/o
Autonomy Rel. 13(DOY 188)
InstrumentCalibration &Commissioning Spin Mode
InstrumentCalibration &Commissioning Spin Mode
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JUPITER FLYBYJUPITER FLYBYJUPITER FLYBYJUPITER FLYBY
Jupiter science included studies of Jovian meteorology, satellite geology and composition,Auroral phenomena, and magnetospheric physics.
32 RJupiterRange
28 Feb 2007C/A Date
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JUPITER OBJECTIVESJUPITER OBJECTIVESJUPITER OBJECTIVESJUPITER OBJECTIVES
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SUCCESS: SUCCESS: SUCCESS: SUCCESS:
A BEVY OF A BEVY OF A BEVY OF A BEVY OF NEW NEW NEW NEW
RESULTSRESULTSRESULTSRESULTS
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JOVIAN JOVIAN JOVIAN JOVIAN METEOROLOGYMETEOROLOGYMETEOROLOGYMETEOROLOGY
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WE OBSERVED IO WE OBSERVED IO WE OBSERVED IO WE OBSERVED IO ERUPTIONS GALOREERUPTIONS GALOREERUPTIONS GALOREERUPTIONS GALORE
� At least 11 volcanic At least 11 volcanic At least 11 volcanic At least 11 volcanic
Plumes were detected.Plumes were detected.Plumes were detected.Plumes were detected.
� We obtained the most We obtained the most We obtained the most We obtained the most
detailed view ever of a detailed view ever of a detailed view ever of a detailed view ever of a
plume on Io.plume on Io.plume on Io.plume on Io.
� Tvashtar is near IoTvashtar is near IoTvashtar is near IoTvashtar is near Io’’’’ssss
North pole: always visible.North pole: always visible.North pole: always visible.North pole: always visible.
� Tvashtar stretches ~340Tvashtar stretches ~340Tvashtar stretches ~340Tvashtar stretches ~340
km above the surface.km above the surface.km above the surface.km above the surface.
Tvashtar
Prometheus
Masubi
Io night side illuminated by Jupiter
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TVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIE� 5 frames
� 8 minutes
� First direct measurements of plume dynamics.First direct measurements of plume dynamics.First direct measurements of plume dynamics.First direct measurements of plume dynamics.
� Ejection speed ~1 km/sec.Ejection speed ~1 km/sec.Ejection speed ~1 km/sec.Ejection speed ~1 km/sec.
� Acceleration during descent.Acceleration during descent.Acceleration during descent.Acceleration during descent.
� Apparently nonApparently nonApparently nonApparently non----ballistic trajectories.ballistic trajectories.ballistic trajectories.ballistic trajectories.
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TVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIE� 5 frames5 frames5 frames5 frames
� 8 minutes8 minutes8 minutes8 minutes
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TVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIE� 5 frames5 frames5 frames5 frames
� 8 minutes8 minutes8 minutes8 minutes
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TVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIE� 5 frames5 frames5 frames5 frames
� 8 minutes8 minutes8 minutes8 minutes
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TVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIE� 5 frames5 frames5 frames5 frames
� 8 minutes8 minutes8 minutes8 minutes
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TVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIETVASHTAR MOVIE� 5 frames5 frames5 frames5 frames
� 8 minutes8 minutes8 minutes8 minutes
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VOLCANOES & RINGSVOLCANOES & RINGSVOLCANOES & RINGSVOLCANOES & RINGS
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MAGNETOTAIL MAGNETOTAIL MAGNETOTAIL MAGNETOTAIL EXPLORATIONEXPLORATIONEXPLORATIONEXPLORATION
Flying down JupiterFlying down JupiterFlying down JupiterFlying down Jupiter’’’’s deep magnetotail to s deep magnetotail to s deep magnetotail to s deep magnetotail to perform the first traverse through a perform the first traverse through a perform the first traverse through a perform the first traverse through a giant giant giant giant
planetplanetplanetplanet’’’’s s s s magnetotail. magnetotail. magnetotail. magnetotail.
~300 RJ
Equatorial PlaneEquatorial Plane
NoonNoon--Midnight PlaneMidnight Plane
+90 days @ 2000 RJ
Former Terra Incognita
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Farwell Jupiter
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CRUISE 2 OVERVIEWCRUISE 2 OVERVIEWCRUISE 2 OVERVIEWCRUISE 2 OVERVIEW
PS-HibernationPS-NormalPS-TCM
AS-NormalAS-TCMAS-EAAS-SA
3A-Normal3A-Encounter3A-TCM
2014 (6/14-8/14)Annual c/o#8TCM 15 Pluto Rehearsal 2
Weekly Beacon, monthly TM. contact in PS-H. 2-3x8h/wk for Annual C/O 7x 8h/d for Precess TCMs in 3A-TCM or AS-TCM
P-200
2008 (9/08-12/08)Annual c/o #2
J+120
Precess11/20/07
Precess12/27/07
Precess12/18/08
2007 (9/07-11/07)Annual c/o #1
2010 (9/10-11/10)Annual c/o #4TCM 11 (P-5y)
2009 (9/09-11/09)Annual c/o #3TCM 10Pluto Rehearsal 1
2011 (9/11-11/11)Annual c/o #5TCM 12
2012 (6/12-8/12)Annual c/o #6TCM 13 (P-3y)
2013 (6/13-8/13)Annual c/o #7TCM 14
Precess06/11/10
Precess11/25/11
Precess12/11/12
Precess12/10/10
Precess10/13/13
OpNavs last annual c/o: 1 every 12hrs for 7 days
Precess05/29/08
Precess06/09/09
Precess12/13/09
Precess06/15/11
Precess12/20/13
P-1yr
Phase inPS-H
Deep Dormancy
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THENTHENTHENTHEN————IN 2015IN 2015IN 2015IN 2015————WHAT WE CAME FORWHAT WE CAME FORWHAT WE CAME FORWHAT WE CAME FOR
� Jan-Mar: Observatory Phase� April: Begin Approach Phase� 14 July: Closest Approach� Aug-Dec: Data Downlink
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ENCOUNTER PHASESENCOUNTER PHASESENCOUNTER PHASESENCOUNTER PHASES
DecNovOctSepAugJulJunMayAprMarFebJanAP1 AP2 DP2 DP3
AP3 DP1NEP
Name Timing relative to Pluto c/a Absolutte time
Approach phase 1 (AP1) P-6 months to P-101 days 2015 Jan 8-2015 Apr 4 (does not extend before conjuction)
Approach phase 2 (AP2) P-100 days to P-22 days 2015 Apr 5 - 2015 Jun 22
Approach phase 3 (AP3) P-21 day to P-24 hours 2015 Jun 23-2015 July 13 11: 59: 59
Near encounter phase (NEP) P-24 hours to P+24 hours 2015 July 13 12: 00-2015 July 15 12: 00
Departure phase 1 (DP1) P+24 hours to P+21 day 2015 July 15 12: 00: 01-2015 Aug 4
Departure phase 2 (DP2) P+22 day to P+100 day 2015 Aug 5 -2015 Oct 22
Departure phase 3 (DP3) P+101 day to P+6 month 2015 Oct 23 - 2016 Jan 5 (does not extend after conjuction)
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PLUTO/CHARONBASELINE OPS PLAN
Constraints:1. Timeline not to scale. 2. Calibrations, etc. allowed outside of DSN contacts.3. P=C/A of Pluto center4. Time shift max 3sigma or ~450sec5. Loads are ~14d long ex. NEP is ~8d6. Doppler & Ranging on
PS-HibernationPS-NormalPS-TCM
AS-NormalAS-TCMAS-EAAS-SA
3A-Normal3A-Encounter3A-TCM
3x8h/wk 2x 8h/d Continuous 9h/d
P-200(Dec 26, 2014)
TCM 16P-60
Sci Obs2x/dayP-90 to 84
Sci Obs2x/dayP-60to 54
P-24 hrs to P+24 hrsNear Enc.
TCM 16 b/uP-40Pluto Rehearsal #3 (Final)
P-186 to 179(per YG study)
Data Retrieval:First Look &Browse
Pluto C/AP=0 (11:50 July 14, 2015)
P+13
Sci Obs.2x/dayP-120 to 114
TCM 17P-20
TCM 17b/u P-10
Sci Obs2x/dayP-42 to 36
Sci Obs2x/dayP-30 to 24
Sci Obs2x/dayP-21 to +14
P-2 Knowledge Update: Ephemeris, CB3 Time shift, C&DH Time Shift & RalphTable Updates
OpNavs: P-170to P-130
Start Load P-7 to +2
P-14Final SSR P/BEphem data cut offOps Encounter Preparation
Sci Obs2x/dayP-150 to 144
OpNavs: 1/day P-40 to P+2
AP 1 AP 2 AP 3 NEP DP1
P-6mos P-100 d
P-21 d
P-24 hrs
Enc Mode P-7
P-3 Erase SSRP/B OpNav
P+1P-7P-21P-40P-54P-68P-82P-100
AP1 loads P-184, 170, 156, 142, 128, 114
P-21Start SSR 2 usage
P-12 Knowledge UpdateEphemeris
TCM 16Data cut off P-65
TCM 17Data cutoff P-25Sci Obs
2x/dayP-180 to 174
P-100 to P-60
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ENCOUNTER ENCOUNTER ENCOUNTER ENCOUNTER GEOMETRYGEOMETRYGEOMETRYGEOMETRY
0.24°
SunEarth
Hydra
Pluto
Nix
Charon
New Horizons TrajectoryPluto C/A11:50:0013,695 km13.78 km/s
Charon C/A12:04:0029,432 km13.87 km/s
Pluto-Sun Occultation12:51:28
Charon-Sun Occultation14:17:50
Charon-Earth Occultation14:20:09
Pluto-Earth Occultation12:52:30
15:00
11:00
• S/C trajectory time ticks: 10 min• Occultation: center time• Position and lighting at Pluto C/A• Distance relative to body center
Orbit Period aCharon 6.4 d 19,571 kmNix 24.9 d 48,675 kmHydra 38.2 d 64,780 km
12:00
13:00
14:00
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NEAR ENCOUNTER NEAR ENCOUNTER NEAR ENCOUNTER NEAR ENCOUNTER FINAL HOURSFINAL HOURSFINAL HOURSFINAL HOURS
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NEAR ENCOUNTER NEAR ENCOUNTER NEAR ENCOUNTER NEAR ENCOUNTER POST C/APOST C/APOST C/APOST C/A
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GATHERING GATHERING GATHERING GATHERING REVOLUTIONARY DATAREVOLUTIONARY DATAREVOLUTIONARY DATAREVOLUTIONARY DATA
� Six months of encounter science.Six months of encounter science.Six months of encounter science.Six months of encounter science.
� Exceed Hubble resolution for months.Exceed Hubble resolution for months.Exceed Hubble resolution for months.Exceed Hubble resolution for months.
� Map Pluto and all three satellites.Map Pluto and all three satellites.Map Pluto and all three satellites.Map Pluto and all three satellites.
� Make composition maps of Pluto & Charon.Make composition maps of Pluto & Charon.Make composition maps of Pluto & Charon.Make composition maps of Pluto & Charon.
� Map surface temperature fields.Map surface temperature fields.Map surface temperature fields.Map surface temperature fields.
� Directly measure PlutoDirectly measure PlutoDirectly measure PlutoDirectly measure Pluto’’’’s escape rate. s escape rate. s escape rate. s escape rate.
� Assay PlutoAssay PlutoAssay PlutoAssay Pluto’’’’s atmospheric structure and s atmospheric structure and s atmospheric structure and s atmospheric structure and composition.composition.composition.composition.
� Determine if either Pluto or Charon differentiated.Determine if either Pluto or Charon differentiated.Determine if either Pluto or Charon differentiated.Determine if either Pluto or Charon differentiated.The most exciting discoveriesThe most exciting discoveriesThe most exciting discoveriesThe most exciting discoverieswill likely be the ones wewill likely be the ones wewill likely be the ones wewill likely be the ones we
DonDonDonDon’’’’t anticipate.t anticipate.t anticipate.t anticipate.
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ANTICIPATING ANTICIPATING ANTICIPATING ANTICIPATING DRAMATIC RESULTSDRAMATIC RESULTSDRAMATIC RESULTSDRAMATIC RESULTS
Triton & Pluto At Best HST Resolution
Triton from Voyager
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AND THEN ON TO KBOs: AND THEN ON TO KBOs: AND THEN ON TO KBOs: AND THEN ON TO KBOs: 2017201720172017----2021202120212021
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BUT THE UNITED STATES BUT THE UNITED STATES BUT THE UNITED STATES BUT THE UNITED STATES CANCANCANCAN’’’’T DO THIS ALONET DO THIS ALONET DO THIS ALONET DO THIS ALONE
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WE CANWE CANWE CANWE CAN’’’’T DO THIS T DO THIS T DO THIS T DO THIS WITHOUT AUSTRALIAWITHOUT AUSTRALIAWITHOUT AUSTRALIAWITHOUT AUSTRALIA
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WE CANWE CANWE CANWE CAN’’’’T DO THIS T DO THIS T DO THIS T DO THIS WITHOUT AUSTRALIAWITHOUT AUSTRALIAWITHOUT AUSTRALIAWITHOUT AUSTRALIA
Thank You
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BACKUP SLIDESBACKUP SLIDESBACKUP SLIDESBACKUP SLIDES
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INSTRUMENT INSTRUMENT INSTRUMENT INSTRUMENT PAYLOADPAYLOADPAYLOADPAYLOAD