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Power Requirements for The NASA Mars Design Reference Architecture (DRA) 5.0This paper summarizes the power systems analysis results from NASA s recent Mars DRA 5.0 study which examined three architecture options and resulting mission requirements for a human Mars landing mission in the post-2030 timeframe. DRA 5.0 features a long approximately 500 day surface stay split mission using separate cargo and crewed Mars transfer vehicles. Two cargo flights, utilizing minimum energy trajectories, pre-deploy a cargo lander to the surface and a habitat lander into a 24-hour elliptical Mars parking orbit where it remains until the arrival of the crew during the next mission opportunity approximately 26 months later. The pre-deployment of cargo poses unique challenges for set-up and emplacement of surface assets that results in the need for self or robotically deployed designs. Three surface architecture options were evaluated for breadth of science content, extent of exploration range/capability and variations in system concepts and technology. This paper describes the power requirements for the surface operations of the three mission options, power system analyses including discussion of the nuclear fission, solar photovoltaic and radioisotope concepts for main base power and long range mobility.
Document ID
20120012929
Document Type
Conference Paper
Authors
Cataldo, Robert L. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 26, 2013
Publication Date
June 14, 2009
Subject Category
Spacecraft Propulsion and Power
Report/Patent Number
E-18237
Paper 203603
Meeting Information
3rd Topical Meeting on Nuclear and Emerging Technologies for Space 2009 (NETS 2009)(Atlanta, GA)
Funding Number(s)
WBS: WBS 138494.05.02.01.02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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