@InProceedings{spark16-01,
  author =   {Gregg Rabideau and Steve Chien and Federico Nespoli and Marc Costa},
  title =    {Managing Spacecraft Memory Buffers with Overlapping Store and Dump Operations},
  abstract = {Space mission scheduling is  determining the set of spacecraft activities to meet mission objectives while respecting mission constraints. One important type of mission constraint is data management. As the spacecraft acquires data via its scientific instruments, it must store the data onboard until it is able to downlink it to ground communications stations. Because onboard storage is limited, this can be a challenging task. This paper describes a general formulation of the Memory Dumping Problem (MDP) which exists in many space missions. We first describe the abstract problem of onboard data management for spacecraft and a more specific version that allows for either (a) buffer data volume or (b) buffer priority specification, to control data downlink. Previous solutions to this problem based on max-flow and LP assumed non-overlapping data generation and downlink events. We present a fast heuristic-based method that solves the overlapping memory dumping problem and compare it to prior methods on actual mission data from the ESA Rosetta mission where these techniques were/are used.},
  keywords = {memory dump problem, memory management, spacecraft operations, scheduling applications}
}

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