TY - GEN
T1 - Psyche
T2 - 2017 IEEE Aerospace Conference, AERO 2017
AU - Lord, Peter
AU - Tilley, Scott
AU - Oh, David Y.
AU - Goebel, Dan
AU - Polanskey, Carol
AU - Snyder, Steve
AU - Carr, Greg
AU - Collins, Steven M.
AU - Lantoine, Gregory
AU - Landau, Damon
AU - Elkins-Tanton, Linda
N1 - Funding Information:
The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, and at SSL under a contract with the National Aeronautics and Space Administration. The authors would like to thank Brent Sherwood and Kim Reh in the JPL's Solar System Exploration Program Office for their support of this work. The authors would also like to thank Greg Whiffen for his help in developing the interplanetary low thrust trajectory used in this study.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/6/7
Y1 - 2017/6/7
N2 - In September 2015, NASA selected five mission concepts from a field of 27 to proceed to the next stage (step 2) of the latest Discovery mission competition. Each team submitted a Mission Concept Study to NASA in August 2016, and in January of 2017 NASA selected Psyche and a second mission for flight. This paper describes Psyche, a unique investigation of a metal world, which is the only one of the original five mission concepts studied in detail to propose the use of Electric Propulsion (EP) to accomplish its mission objectives. Psyche will harness commercially developed EP and space power systems with strong system-level heritage to accomplish a deep space NASA science mission at comparatively low technical-risk and cost-risk. This paper describes the Psyche mission concept and the unique Solar Electric Propulsion (SEP) architecture that allows the use of SSL's commercial SPT-140 Hall thruster propulsion system at solar distances of up to 3.3 AU with only minimal modifications. Building on previous work analyzing SEP systems for Discovery-class missions, this paper describes the heritage, design, and testing which have been conducted on the power and propulsion systems to develop the Psyche mission, addresses the differences between GEO and deep-space environments, and describes actions taken to ensure that GEO heritage systems can be operated reliably in deep-space.
AB - In September 2015, NASA selected five mission concepts from a field of 27 to proceed to the next stage (step 2) of the latest Discovery mission competition. Each team submitted a Mission Concept Study to NASA in August 2016, and in January of 2017 NASA selected Psyche and a second mission for flight. This paper describes Psyche, a unique investigation of a metal world, which is the only one of the original five mission concepts studied in detail to propose the use of Electric Propulsion (EP) to accomplish its mission objectives. Psyche will harness commercially developed EP and space power systems with strong system-level heritage to accomplish a deep space NASA science mission at comparatively low technical-risk and cost-risk. This paper describes the Psyche mission concept and the unique Solar Electric Propulsion (SEP) architecture that allows the use of SSL's commercial SPT-140 Hall thruster propulsion system at solar distances of up to 3.3 AU with only minimal modifications. Building on previous work analyzing SEP systems for Discovery-class missions, this paper describes the heritage, design, and testing which have been conducted on the power and propulsion systems to develop the Psyche mission, addresses the differences between GEO and deep-space environments, and describes actions taken to ensure that GEO heritage systems can be operated reliably in deep-space.
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U2 - 10.1109/AERO.2017.7943771
DO - 10.1109/AERO.2017.7943771
M3 - Conference contribution
AN - SCOPUS:85021203491
T3 - IEEE Aerospace Conference Proceedings
BT - 2017 IEEE Aerospace Conference
PB - IEEE Computer Society
Y2 - 4 March 2017 through 11 March 2017
ER -