NASA NTRS · 20190029121
OSIRIS-REx Orbit Determination Performance During the Navigation Campaign
Abstract
The OSIRIS-REx mission Navigation Campaign consists of three sub-phases: Approach,Preliminary Survey, and Orbital A. Approach was designed for initial characterization ofBennu while matching Bennu's heliocentric velocity. Preliminary Survey provided the firstspacecraft-based estimate of Bennu's mass. This phase consisted of five target flybys witha close approach distance of about 7 km. Orbital A was a two-month phase devoted to theNavigation Team learning the close proximity operations dynamics and environment aroundBennu and transitioning from center-finding optical navigation to landmark feature-basednavigation. This paper provides a detailed summary of the orbit determination performancethroughout the Navigation Campaign.
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Leonard, Jason M., Geeraert, Jeroen L., Page, Brian R., French, Andrew S., Antreasian, Peter G., Adam, Coralie D., Wibben, Daniel R., Moreau, Michael C., Lauretta, Dante S.. 2019-08-11. OSIRIS-REx Orbit Determination Performance During the Navigation Campaign. https://ntrs.nasa.gov/citations/20190029121
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