OSIRIS-REx Proximity Operations and Navigation Performance at (101955) Bennu
- Antreasian, P.G.
- Adam, C.D.
- Geeraert, J.
- Leonard, J.M.
- Lessac-Chenen, E.
- Levine, A.
- McAdams, J.
- McCarthy, L.K.
- Nelson, D.
- Page, B.
- Pelgrift, J.Y.
- Sahr, E.
- Wibben, D.
- Williams, B.
- Williams, K.
- Berry, K.
- Getzandanner, K.
- Moreau, M.
- Rieger, S.
- Ashman, B.W.
- Highsmith, D.E.
- Lauretta, D.
DOIAbstract
The NASA Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) spacecraft began close proximity operations at the small (500-m diameter) 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 ...
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