Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) was a NASA New Frontiers–class asteroid sample return mission to (101955) Bennu. OSIRIS-REx performed a series of Trajectory Cor-rection Maneuver (TCM)s to target an Entry Interface (EI) point for Earth Return and entry, descent, and landing (EDL). On September 24, 2023, the Sample Re-turn Capsule (SRC) separated from the spacecraft, entered the atmosphere, and ultimately landed at the Utah Test and Training Range for recovery. This paper gives an overview of the updated orbit determination (OD) covariance analysis that went into the Earth return and reentry analysis after asteroid departure. Tracking data assumptions and multiple filter cases are analyzed to show performance. Operational OD results from TCM-9 and subsequent targeting maneuvers up to entry interface are provided. We show parameter error analysis contributions from the OD setup and their breakdown in the B-Plane error ellipses. Finally, we discuss the terminal OD solutions into EI and reconstruction results using onboard image data.


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    Title :

    OSIRIS-REx Earth Return Orbit Determination Analysis and Performance


    Contributors:
    J. M. Leonard (author) / M. Q. Myers (author) / B. Page (author) / K. T. Pipich (author) / C. J. VeNard (author) / P. G. Antreasian (author) / A. Liounis (author) / K. M. Getzandanner (author)

    Publication date :

    2024


    Size :

    20 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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