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EPOXI
EntityQ2518709· pop 15· linked from 409 articles

Also known as Extrasolar Planet Observation and Characterization, EPOCh, Deep Impact Extended Investigation, DIXI, Extrasolar Planet Observation and Deep Impact Extended Investigation

EPOXI was a compilation of NASA Discovery program missions led by the University of Maryland and principal investigator Michael A'Hearn, with co-operation from the Jet Propulsion Laboratory and Ball Aerospace. EPOXI uses the Deep Impact spacecraft in a campaign consisting of two missions: the Deep Impact Extended Investigation (DIXI) and Extrasolar Planet Observation and Characterization (EPOCh). DIXI aimed to send the Deep Impact spacecraft on a flyby of another comet, after its primary mission was completed in July 2005, while EPOCh saw the spacecraft's photographic instruments as a space ob

Key facts

Spaceflight.name
EPOXI
Spaceflight.image
PIA02109.jpg
Spaceflight.image_caption
The Deep Impact spacecraft at Ball Aerospace & Technologies in July 2004.
Spaceflight.image_alt
A spacecraft under construction hangs in the hallway of a laboratory as a scientist, clothed in a white protective suit, attaches scientific instruments to the spacecraft bus.
Spaceflight.image_size
300
Spaceflight.mission_type
Flyby (85D/Boethin103P/Hartley(163249) 2002 GT) Space observatory
Spaceflight.operator
NASA
Spaceflight.COSPAR_ID
2005-001A
Spaceflight.mission_duration
8 years, 18 days
Spaceflight.spacecraft
Deep Impact
Spaceflight.manufacturer
JPLBall AerospaceUniversity of Maryland
Spaceflight.launch_mass
650 kg
Spaceflight.power
620.0 W
Spaceflight.entered_service
( ago)
Spaceflight.last_contact
( ago)
Spaceflight.insignia
EPOXI Mission Patch.png
Spaceflight.insignia_caption
Official insignia for the re-targeted DIXI mission to Hartley 2
Spaceflight.insignia_alt
A circle with a blue border encloses an image of a spacecraft on approach to a comet. The words "EPOXI Mission" and "Deep Impact Extended Investigation" are written along the border of the image.

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Wikidata facts

Official website
epoxi.astro.umd.edu
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Commons category
EPOXI
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~9 min read

Article

7 sections
Contents
  • Mission
  • Comet Boethin lost
  • EPOCh
  • Comet flyby
  • Sundry opportunities
  • References
  • External links

EPOXI was a compilation of NASA Discovery program missions led by the University of Maryland and principal investigator Michael A'Hearn, with co-operation from the Jet Propulsion Laboratory and Ball Aerospace. EPOXI uses the Deep Impact spacecraft in a campaign consisting of two missions: the Deep Impact Extended Investigation (DIXI) and Extrasolar Planet Observation and Characterization (EPOCh). DIXI aimed to send the Deep Impact spacecraft on a flyby of another comet, after its primary mission was completed in July 2005, while EPOCh saw the spacecraft's photographic instruments as a space observatory, studying extrasolar planets.

DIXI successfully sent the Deep Impact spacecraft on a flyby of comet Hartley 2 on November 4, 2010, revealing a "hyperactive, small and feisty" comet, after three gravity assists from Earth in December 2007, December 2008 and June 2010. The DIXI mission was not without problems, however; the spacecraft had initially been targeted for a December 5, 2008 flyby of comet Boethin, though, the comet could not be located, and was later declared a lost comet, prompting mission planners to reorganize a flyby of an alternative target, Hartley 2. After its flyby of Hartley 2, the spacecraft was also set to make a close flyby of the Apollo asteroid (163249) 2002 GT in 2020. The mission ended after contact with the spacecraft was suddenly lost in August 2013 and attempts to re-establish contact in the following month had failed. Mission scientists theorized that a Y2K-like problem had plagued the spacecraft's software.

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