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Gravity Recovery and Interior Laboratory Mission (GRAIL) orbit determination

Show simple item record You, Tung-Han Antreasian, Peter Broschart, Stephen Criddle, Kevin Higa, Earl Jefferson, David Lau, Eunice Mohan, Swati Ryne, Mark Keck, Mason 2013-04-22T14:51:31Z 2013-04-22T14:51:31Z 2012-10-29
dc.identifier.citation 23rd International Symposium on Space Flight Dynamics, Pasadena, California, October 29 - November 2, 2012 en_US
dc.identifier.clearanceno 12-5260
dc.description.abstract Launched on 10 September 2011 from the Cape Canaveral Air Force Station, Florida, the twin-spacecraft Gravity Recovery and Interior Laboratory (GRAIL) has the primary mission objective of generating a lunar gravity map with an unprecedented resolution via the Ka-band Lunar Gravity Ranging System (LGRS). After successfully executing nearly 30 maneuvers on their six-month journey, Ebb and Flow (aka GRAIL-A and GRAIL-B) established the most stringent planetary formation orbit on 1 March 2012 of approximately 30 km x 90 km in orbit size. This paper describes the orbit determination (OD) filter configurations, analyses, and results during the Trans-Lunar Cruise, Orbit Period Reduction, and Transition to Science Formation phases. The maneuver reconstruction strategies and their performance will also be discussed, as well as the navigation requirements, major dynamic models, and navigation challenges. GRAIL is the first mission to generate a full high-resolution gravity field of the only natural satellite of the Earth. It not only enables scientists to understand the detailed structure of the Moon but also further extends their knowledge of the evolutionary histories of the rocky inner planets. Robust and successful navigation was the key to making this a reality. 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 Gravity Recovery and Interior Laboratory (GRAIL) en_US
dc.subject orbit determination en_US
dc.subject formation flying en_US
dc.subject navigation en_US
dc.subject Ebb en_US
dc.subject flow en_US
dc.subject Trans-Lunar Cruise (TPC) en_US
dc.subject Orbit Period Reduction (OPR) en_US
dc.subject Transition to Science Formation (TSF) en_US
dc.title Gravity Recovery and Interior Laboratory Mission (GRAIL) orbit determination en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Lunar and Planetary Science and Exploration en_US

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