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OSIRI-REx Touch and Go (TAG) Navigation PerformanceThe Origins Spectral Interpretation Resource Identification Security Regolith Explorer (OSIRIS-REx) mission is a NASA New Frontiers mission launching in 2016 to rendezvous with the near-Earth asteroid (101955) Bennu in late 2018. Following an extensive campaign of proximity operations activities to characterize the properties of Bennu and select a suitable sample site, OSIRIS-REx will fly a Touch-And-Go (TAG) trajectory to the asteroid's surface to obtain a regolith sample. The paper summarizes the mission design of the TAG sequence, the propulsive maneuvers required to achieve the trajectory, and the sequence of events leading up to the TAG event. The paper also summarizes the Monte-Carlo simulation of the TAG sequence and presents analysis results that demonstrate the ability to conduct the TAG within 25 meters of the selected sample site and 2 cm/s of the targeted contact velocity. The paper describes some of the challenges associated with conducting precision navigation operations and ultimately contacting a very small asteroid.
Document ID
20160000219
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Berry, Kevin (NASA Goddard Space Flight Center Greenbelt, MD United States)
Antreasian, Peter (KinetX Aerospace, Inc Simi Valley, CA, United States)
Moreau, Michael C. (NASA Goddard Space Flight Center Greenbelt, MD United States)
May, Alex (Lockheed Martin Space Systems Co. Littleton, CO, United States)
Sutter, Brian (Lockheed Martin Space Systems Co. Littleton, CO, United States)
Date Acquired
January 5, 2016
Publication Date
January 30, 2015
Subject Category
Astrodynamics
Report/Patent Number
AAS 15-125
GSFC-E-DAA-TN20316
Meeting Information
Meeting: Annual AAS Guidance And Control Conference
Location: Breckenridge, CO
Country: United States
Start Date: January 30, 2015
End Date: February 4, 2015
Sponsors: American Astronautical Society
Funding Number(s)
CONTRACT_GRANT: NNG12FD66C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Security Regolith Explorer
Origins Spectral Interpretation
Touch and Go

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