NEW HORIZONS NASA’s Pluto-Kuiper Belt Mission: “The First Mission To the Ninth Planet And the Solar System’s Third Zone” XXXX Days Since Launch XXXX Days Still To Pluto
Pluto was discovered in January- February 1930, by Clyde Tombaugh at Lowell Observatory, Arizona. Pluto: A Little Background Pluto is a Small, Distant World <1% Mars’s Max Apparent Diameter (0.1 arcsec) And 50,000 times fainter than Mars (V~14)
An Historic Journey Pluto-Charon July 2015 KBOs Jupiter System March 2007 The Initial Reconnaissance of The Solar System’s “Third Zone” Launch Jan 2006
A MISSION OF FIRSTS
Pluto-Charon: What We Know The Best Hubble Images of Pluto Are Still Crude
But Now We Know The System is a Quadruple
PLUTO-KUIPER BELT EXPLORATION A Reconnaissance Expedition To Pluto-Charon & the Kuiper Belt The Highest Priority Medium-Scale Mission New Start Of The Planetary Decadal Survey
SO WE PROPOSED IT, WON IT,AND BUILT IT
SCIENTIFIC PAYLOAD Instruments: 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
OUR ATLAS V 551 LAUNCH VEHICLE Centaur Interstage Adapter (12.5 ft Dia) CCB Cylindrical Interstage Adapter RD-180 Engine Common Core Booster TM (CCB) Single RL10 Engine Centaur Upper Stage 5-meter Short Payload Fairing (68 ft) Solid Rocket Boosters Aft Transition Skirt/Heat Shield 5-Meter Payload Fairing Boattail Centaur Aft Stub Adapter Centaur Forward Load Reactor Payload Adapter (PLA) Centaur Conical Interstage Adapter
FINISHING TOUCHES
ALL DRESSED UP AND READY TO FLY
LAUNCH: 19 JAN 2006 GOING SUPERSONIC!
ROUTE OF FLIGHT
JUPITER FLYBY Jupiter science included studies of Jovian meteorology, satellite geology and composition, Auroral phenomena, and magnetospheric physics. C/A Date28 Feb 2007 Range32 R Jupiter
FLYBY OBJECTIVES
SUCCESS: NEW RESULTS
AND WE OBSERVED IO ERUPTIONS GALORE At least 11 volcanic Plumes were detected. We obtained the most detailed view ever of a plume on Io. Tvashtar is near Io’s North pole: always visible. Tvashtar stretches ~340 km above the surface. Tvashtar Prometheus Masubi Io night side illuminated by Jupiter
TVASHTAR MOVIE 5 frames 8 minutes
TVASHTAR MOVIE 5 frames 8 minutes
TVASHTAR MOVIE 5 frames 8 minutes
TVASHTAR MOVIE 5 frames 8 minutes
TVASHTAR MOVIE 5 frames 8 minutes
TVASHTAR MOVIE 5 frames 8 minutes First direct measurements of plume dynamics. Ejection speed ~1 km/sec. Acceleration during descent. Apparently non-ballistic trajectories.
AND FINALLY, MAGNETOTAIL EXPLORATION Flying down Jupiter’s deep magnetotail to perform the first traverse through a giant planet’s magnetotail. ~300 R J Equatorial Plane Noon-Midnight Plane R J Former Terra Incognita
UNEXPLAINED PLASMA QUASI-PERIODICITIES A 10 hour period at 450 R J !
Farwell Jupiter
CRUISE 2 OVERVIEW PS-Hibernation PS-Normal PS-TCM AS-Normal AS-TCM AS-EA AS-SA 3A-Normal 3A-Encounter 3A-TCM
NEXT UP: IN 2015: WHAT WE CAME FOR Jan-Mar: Observatory Phase April: Begin Approach Phase 14 July: Closest Approach Aug-Dec: Data Downlink
REVOLUTIONARY DATASETS Six months of encounter science. Exceed Hubble resolution for months. Map Pluto and all three satellites. Make composition maps of Pluto and Charon. Map surface temperature fields. Directly measure Pluto’s escape rate. Assay Pluto’s atmospheric structure and composition. Determine if either Pluto or Charon differentiated. Locate additional satellites. The most exciting discoveries will likely be the ones we Don’t anticipate.
ANTICIPATE DRAMATIC RESULTS Triton & Pluto At Best HST Resolution Triton from Voyager
AND THEN ON TO KBOs LATE IN THE NEXT DECADE
ONLY AMERICA CAN DO THIS
BACKUP SLIDES
INSTRUMENT PAYLOAD