Physics
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002iaf..confe.686c&link_type=abstract
IAF abstracts, 34th COSPAR Scientific Assembly, The Second World Space Congress, held 10-19 October, 2002 in Houston, TX, USA.,
Physics
Scientific paper
This paper explores different mission architectures that can be used to return samples from the planet Mars back to the Earth. Past and current Mars Sample Return (MSR) missions are first analyzed to gain insight into the major mission mode decisions that characterize them. A taxonomy is developed to provide a structure for assessing the past and current mission architectures. This taxonomy is built around branch points in a proposed mission architecture "tree" which are cited as most critical in terms of cost and mission success. Metrics for different paths through the architecture tree are then explored, using data from past published NASA, industry, and international studies. Using these metrics, mission types that minimize risk, and mission types that minimize cost are discussed. Major trade studies are identified and their impact on mission design decisions discussed. The paper concludes with observations on the interconnections of mission architecture decisions, cost and risk.
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