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NEXT Ion Propulsion System Risk Mitigation Tests in Support of the Double Asteroid Redirection Test MissionRisk mitigation tests have been conducted by the NASA Glenn Research Center and The Aerospace Corporation in support of the DART Mission. The tests focused on NEXT performance characterizations intended to ensure its operations and characteristics are compatible with the DART mission operations, and to assist in the definition of the propulsion system. Tests were performed at the Aerospace Corporation and they involved: flow sensitivity-analyses, steady-state performance characterizations, and measurements of thruster erosion. The tests also involved defining, demonstrating, verifying, and evaluating the start-up sequences and a beam current regulation algorithm consistent with DART mission requirements. It was found that NEXT thruster operations are compatible with the proposed relaxation of flow control ranges for ignition and for steady-state operation.
Document ID
20190032575
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Thomas, Robert E. (NASA Glenn Research Center Cleveland, OH, United States)
Patterson, Michael J. (NASA Glenn Research Center Cleveland, OH, United States)
Crofton, Mark W. (Aerospace Corp. El Segundo, CA, United States)
John, Jeremy W. (Johns Hopkins Univ. Baltimore, MD, United States)
Date Acquired
November 7, 2019
Publication Date
November 1, 2019
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
E-19759
GRC-E-DAA-TN72251
NASA/TM-2019-220377
Paper AIAA–2019–4165
Report Number: E-19759
Report Number: GRC-E-DAA-TN72251
Report Number: NASA/TM-2019-220377
Report Number: Paper AIAA–2019–4165
Meeting Information
Meeting: AIAA Propulsion and Energy Forum and Exposition
Location: Indianapolis, IN
Country: United States
Start Date: August 19, 2019
End Date: August 22, 2019
Sponsors: American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
WBS: 265759.06.01.01
CONTRACT_GRANT: NNJ11HB94C
CONTRACT_GRANT: NNN15AA05T
CONTRACT_GRANT: See Comments
Distribution Limits
Public
Copyright
Public Use Permitted.

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