OPAG: We Did It!
Transcript of OPAG: We Did It!
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OPAG:!We Did It!!
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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
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SIX OBJETCS
TO STUDY
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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
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WE DID IT!
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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
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PROPOSAL: KBO FLYBY 2019
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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.
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PT1 AND PT3 IN CONTEXT
slide courtesy A. Parker
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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.
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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
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Distant KBO Flybys (PT1)
PT1 2014
PT3, 2014 PT3, 2015
Science:Phase CurvesLightcurvesColorsInner Satellite Searches
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Exploring Pluto: We Did It!!
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BACKUPS
PT1 2014
PT3, 2014 PT3, 2015
PT1, 2015
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38
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