“NASA’s Mars 2020 mission … rover is being designed to seek signs of past life on Mars, collect and store a set of soil and rock samples that could be returned to Earth in the future.”1 The Mars 2020 Project has a top-level requirement that soil and rock samples contain less than 10 ppb Total Organic Carbon (TOC) 2. The approach taken to meet this requirement is to identify and model for each Mars 2020 mission phase the TOC sources, model TOC transport from sources to sample contacting surfaces, and combine them into an end-to-end model that calculates the TOC in each sample during the mission. The calculations show that Mars 2020 can achieve the TOC sample cleanliness requirement because the project has adopted specific TOC mitigations strategies.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Mars 2020 Sample Cleanliness Molecular Transport Model


    Contributors:

    Publication date :

    2018-08-19


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English



    Mars 2020 return sample cleanliness molecular transport model

    White, Lauren M. / Anderson, John R. / Anderson, Mark S. et al. | NTRS | 2017


    Mars 2020 sample cleanliness molecular transport model [10748-9]

    British Library Conference Proceedings | 2018


    Cleaning and Cleanliness Verification Techniques for Mars Returned Sample Handling

    Mickelson, E. T. / Lindstrom, D. J. / Allton, J. H. et al. | NTRS | 2002


    Mars 2020 and Mars Sample Return

    Younse, Paulo J | NTRS | 2020