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New mission old spacecraft : EPOXI’s approach to the comet Hartley-2

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dc.contributor.author Rieber, Richard R.
dc.contributor.author LaBorde, Gregory R.
dc.date.accessioned 2013-01-14T22:47:32Z
dc.date.available 2013-01-14T22:47:32Z
dc.date.issued 2012-06-11
dc.identifier.citation SpaceOps 2012, Stockholm, Sweden, June 11-15, 2012 en_US
dc.identifier.clearanceno 12-1864
dc.identifier.uri http://hdl.handle.net/2014/42599
dc.description.abstract NASA’s Deep Impact mission ended successfully in 2005 after an impact and close flyby of the comet 9P/Tempel-1. The Flyby spacecraft was placed in hibernation and was left to orbit the sun. In 2007, engineers at the Jet Propulsion Laboratory brought the spacecraft out of hibernation and successfully performed two additional missions. These missions were EPOCh, Extra-solar Planetary Observation and Characterization, a photometric investigation of transiting exo-planets, and DIXI, Deep Impact eXtended Investigation, which maneuvered the Flyby spacecraft towards a close encounter with the comet 103P/Hartley- 2 on 4 November 2010. The names of these two scientific investigations combine to form the overarching mission’s name, EPOXI. The encounter with 103P/Hartley-2 was vastly different from the prime mission’s encounter with 9P/Tempel-1. The geometry of encounter was nearly 180 ◦ different and 103P/Hartley-2 was approximately one-quarter the size of 9P/Tempel-1. Mission operations for the comet flyby were broken into three phases: a) Approach, b) Encounter, and c) Departure. This paper will focus on the approach phase of the comet encounter. It will discuss the strategies used to decrease both cost and risk while maximizing science return and some of the challenges experienced during operations. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject comet encounter en_US
dc.subject comet flyby en_US
dc.subject Deep Impact mission en_US
dc.subject science return en_US
dc.title New mission old spacecraft : EPOXI’s approach to the comet Hartley-2 en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Lunar and Planetary Science and Exploration en_US


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