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OPAG:!We Did It!!
N E W H O R I Z O N S :P L U T O E N C O U N T E R
T I M E L I N E
P R I M A RYO P E R AT I O N S
M A N E U V E R S
H A Z A R D S E A R C H
Jan Feb MarApr May Jun Jul Aug Sep Oct Nov Dec
Jan Feb Mar MayApr Jun Jul Aug OctSep
Pluto Closest Approach
ENCOUNTER OVERVIEW
SIX OBJETCS
TO STUDY
AND TWO NEEDLES TO THREAD
0.24°
SunEarth
Hydra
Pluto
Nix
Charon
New Horizons Trajectory Pluto C/A 11:50:00 13,695 km 13.78 km/s
Charon C/A 12:04:00 29,432 km 13.87 km/s
Pluto-Sun Occultation 12:51:28
Charon-Sun Occultation 14:17:50
Charon-Earth Occultation 14:20:09
Pluto-Earth Occultation 12:52:30
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 a Charon 6.4 d 19,571 km Nix 24.9 d 48,675 km Hydra 38.2 d 64,780 km
12:00
13:00
14:00
WE DID IT!
Alice Solar Occultation
−500 0 500 1000Elapsed Seconds
0.0
0.2
0.4
0.6
0.8
1.0
Nor
mal
ized
Cou
nt R
ate
−1000
Reversed
SunriseSunset
Lightcurve
Pluto
170 miprevious
data
1000 mi New
Horizons
detection
PROPOSAL: KBO FLYBY 2019
KBO EXTENDED MISSION PROPOSAL IN CONTEX
PT1 2014
PT3, 2014 PT3, 2015
PT1, 2015
Ø The Planetary Decadal Survey that enabled New Horizons called for a Kuiper Belt-Pluto Mission to explore both the Pluto System and small KBOs.
Ø New Horizons and its payload were explicitly designed to carry out this KBO mission in response to the NASA PKB AO.
Ø In 2014 the New Horizons project identified 2 potential KBOs targets using HST; they are called Potential Targets (PTs) 1 and 3.
Ø New Horizons is healthy and has more fuel and ΔV capability aboard (~130 m/sec) than originally after Pluto.
Ø A KBO extended mission is viable.
PT1 AND PT3 IN CONTEXT
slide courtesy A. Parker
KBO Extended Mission Science Objectives
PT1 2014
PT3, 2014 PT3, 2015
PT1, 2015
Ø Conduct a close flyby of a primordial KBO planetesimal.
Ø Conduct distant science flyby observations of 10-20 other KBOs.
Ø Conduct heliospheric cruise science in the Kuiper Belt; specifically heliospheric plasma, dust, and neutral H/He observations.
Ø Potentially conduct astrophysical cruise science.
PT1/PT3 OVERVIEW
PT1 2014
PT3, 2014 PT3, 2015
PT1, 2015
PT1 PT3MPC Designator 2014 MU69 2014 PN70Diameter (p=0.04, smaller if higher albedo)
45 km 55 km
Orbital Semi-major Axis 44.2 AU 44.3 AUOrbital Eccentricity 0.036 0.068Orbital Inclination 1.9 deg 2.8 degCold Classical Yes (96.5%) Yes (95.4%)ΔV to Target 56.5 m/s 116.9 m/sEncounter Date 2018 Dec 31 2019 March 18Encounter During Solar Conjunction No NoEncounter OpNav Field Go GoEncounter OpNav Acquisition Meets Requirement Meets Requirement
Distant KBO Flybys (PT1)
PT1 2014
PT3, 2014 PT3, 2015
Science:Phase CurvesLightcurvesColorsInner Satellite Searches
Exploring Pluto: We Did It!!
BACKUPS
PT1 2014
PT3, 2014 PT3, 2015
PT1, 2015
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