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Autonomous Science Restart for the Planned Europa Mission with Lightweight Planning and Execution

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dc.contributor.author Verma, Vandi
dc.contributor.author Gaines, Dan
dc.contributor.author Rabideau, Gregg
dc.contributor.author Schaffer, Steve
dc.contributor.author Joshi, Rajeev
dc.date.accessioned 2020-04-21T22:24:43Z
dc.date.available 2020-04-21T22:24:43Z
dc.date.issued 2017-06-18
dc.identifier.citation The 27th International Conference on Automated Planning and Scheduling (ICAPS), Pittsburgh, Pennsylvania, June 18-23, 2017 en_US
dc.identifier.clearanceno 18-0417
dc.identifier.uri http://hdl.handle.net/2014/48030
dc.description.abstract In this paper we present MEXEC - a lightweight on-board planning and execution system that monitors spacecraft state to robustly respond to current conditions. In addition it projects the remaining plan forward in time to detect conflicts and revise the plan. Most current planetary missions use sequence based commanding from the ground,which limits the ability to respond to on-board state varying from planned for state. This results in planning for worst-case execution time, power utilization, data volume and other resources and leads to under utilization of the spacecraft capability. It also limits the ability to respond to faults. Due to the high radiation environment at Jupiter the probability of flight software resets is high. Therefore, of particular interest to the planned Europa Mission is the capability to restart the science plan after flight software resets. In this paper we present results from running Europa flyby scenarios with flight software resets in the Europa flight software test environment. Preliminary results with the prototype scenario show MEXEC takes less than a tenth of a second to respond to resets. The development was done as part of Europa-focused flight software, but MEXEC was designed to be applicable to landers and rovers as well. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2017 en_US
dc.title Autonomous Science Restart for the Planned Europa Mission with Lightweight Planning and Execution en_US
dc.type Preprint en_US


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