Dawn (spacecraft)
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Dawn
Mission type
Multi-target orbiter
Operator
NASA
COSPAR ID
2007-043A
Website
NASA
NASA JPL
Mission duration
~9 years
Spacecraft properties
Manufacturer
Orbital Sciences · JPL(Jet Propulsion Laboratory) · UCLA(University of California, Los Angeles)
BOL mass
1,240 kg (2,730 lb) (wet)
Power
1300 W (Solar array) at 3 AU
Start of mission
Launch date
September 27, 2007 (2007-09-27) 11:34:00 UTC
(7 years, 7 months and 28 days ago)
Rocket
Delta II 7925H
Launch site
Space Launch Complex 17B
Cape Canaveral Air Force Station, Florida, United States
Flyby of Mars (Gravity assist)
Closest approach
February 4, 2009 (2009-02-04)
(6 years, 3 months and 21 days ago)
Distance
549 km (341 mi)
4 Vesta orbiter
Orbital insertion
July 16, 2011 (2011-07-16) 04:47 UTC
(3 years, 10 months and 9 days ago)
Departed orbit
September 5, 2012 (2012-09-05)
(2 years, 8 months and 20 days ago)
Ceres orbiter
Orbital insertion
March 6, 2015 (2015-03-06)
Dawn mission patch
Dawn is a space probe launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt, Vesta and Ceres. It is currently in orbit about its second target, the dwarf planet Ceres. Dawn is the first spacecraft to orbit two extraterrestrial bodies, the first spacecraft to visit either Vesta or Ceres, and also the first to visit a dwarf planet, arriving at Ceres a few months before New Horizons was scheduled to fly by Pluto.Dawn entered Vesta orbit on July 16, 2011, and completed a 14-month survey mission before leaving for Ceres in late 2012. Dawn entered Ceres orbit on March 6, 2015, and is predicted to remain in orbit perpetually after the conclusion of its mission.The Dawn mission is managed by NASA's Jet Propulsion Laboratory, with spacecraft components contributed by European partners from the Netherlands, Italy and Germany. It is the first NASA exploratory mission to use ion propulsion, which enabled it to enter and leave the orbit of multiple celestial bodies. Previous multi-target missions using conventional drives, such as the Voyager program, were restricted to flybys.
^ Cite error: The named reference GSpaceTimeline was invoked but never defined (see the help page).
^ a b c Rayman, Marc; Fraschetti, Raymond, Russell (April 5, 2006). "Dawn: A mission in development for exploration of main belt asteroids Vesta and Ceres" (PDF). Acta Astronautica 58 (11): 605–616. Bibcode:2006AcAau..58..605R. doi:10.1016/j.actaastro.2006.01.014. Retrieved April 14, 2011. Cite uses deprecated parameter |coauthors= (help)
^ "Dawn Spacecraft Successfully Launched". NASA. September 27, 2007. Retrieved November 9, 2013.
^ "NASA's Dawn Spacecraft Begins Science Orbits of Vesta". NASA. August 1, 2011. Retrieved August 6, 2011.
^ Cite error: The named reference nbcnews3615 was invoked but never defined (see the help page).
^ Rayman, Marc (April 8, 2015). Now Appearing At a Dwarf Planet Near You: NASA's Dawn Mission to the Asteroid Belt (Speech). Silicon Valley Astronomy Lectures. Foothill College, Los Altos, CA.
^ "NASA's Dawn Spacecraft Hits Snag on Trip to 2 Asteroids". Space.com. August 15, 2012. Retrieved August 27, 2012.
^ "Dawn Gets Extra Time to Explore Vesta". NASA. April 18, 2012. Retrieved April 24, 2012.
^ Landau, Elizabeth; Brown, Dwayne (March 6, 2015). "NASA Spacecraft Becomes First to Orbit a Dwarf Planet". NASA. Retrieved March 6, 2015.
^ Rayman, Marc (6 March 2015). "Dawn Journal: Ceres Orbit Insertion!". Planetary Society. Retrieved March 6, 2015.
^ Cite error: The named reference EternalSatellite was invoked but never defined (see the help page).
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