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GRAIL TCM-5 Go/No-go: developing lunar orbit insertion criteria

Show simple item record Chung, Min-Kun J. 2015-02-06T00:18:56Z 2015-02-06T00:18:56Z 2013-08-11
dc.identifier.citation AAS/AIAA Astrodynamics Specialist Conference, Hilton Head, South Carolina, August 11-15, 2013 en_US
dc.identifier.clearanceno 13-3199
dc.description.abstract The Gravity Recovery and Interior Laboratory (GRAIL) mission successfully completed mapping the Moon’s gravity field to an unprecedented level. The mission success was critically dependent on the success of the Lunar Orbit Insertion (LOI). It was somewhat unfamiliar as it involved an elliptical approach from a low-energy trans-lunar cruise trajectory via Sun-Earth three-body region rather than a more conventional hyperbolic approach from a direct Earth-to-Moon transfer. In addition, how its delivery dispersion affected the science formation of the two spacecraft was not well understood. In this paper we establish a set of LOI criteria to meet all the requirements and we use these criteria to establish Go/No-Go boundaries of the last, statistical Trajectory Correction Maneuvers (TCM-5s) for operations. In the end both spacecraft were found to be within the established boundaries and TCM-5s of both spacecraft were cancelled. 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, 2013 en_US
dc.title GRAIL TCM-5 Go/No-go: developing lunar orbit insertion criteria en_US
dc.type Preprint en_US

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