NASA NTRS · 20210025791
OSIRIS-REx Proximity Operations and Navigation Performance at (101955) Bennu
Abstract
The NASA Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) spacecraft began close proximity operations at the small (500-mdiameter) B-type asteroid (101955) Bennu in December 2018 and concluded in May 2021.Hundreds of grams of pristine surface regolith were collected on October 20, 2020, when the OSIRIS-REx spacecraft successfully executed the Touch and Go (TAG) sample collection sequence. The spacecraft touched down within 1 meter of the targeted site on the surface of Bennu. TAG was the culmination of over 2 years of navigation performance refinement as a result of extraordinary interagency teamwork between the Flight Dynamics System (FDS),science and spacecraft teams while in close proximity to Bennu. This paper will discuss the navigation processes, planning and performance during the proximity operations at Bennu.
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Peter G Antresian, Coralie D Adam, Jeroen Geeraert, Jason M Leonard, Erik Lessac-Chenen, Andrew Levine, Jim Mcadams, Leilah K Mccarthy, Derek Nelson, Brian Page, John Y Pelgrift, Eric Sahr, Daniel Wibben, Bobby Williams, Kenneth Williams, Kevin Berry, Kenneth Getzandanner, Michael Moreau, Samantha Rieger, Benjamin W Ashman, Dolan E Highsmith, Dante Lauretta. OSIRIS-REx Proximity Operations and Navigation Performance at (101955) Bennu. https://ntrs.nasa.gov/citations/20210025791
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