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The Asteroid Redirect Mission (ARM) proposes to retrieve a near-Earthasteroid and position it in a lunar distant retrograde orbit (DRO) for laterstudy, crewed exploration, and ultimately resource exploitation. During theCaltech Space Challenge, a recent workshop to design a crewed mission to acaptured asteroid in a DRO, it became apparent that the asteroid's low escapevelocity (<1 cm s$^{-1}$) would permit the escape of asteroid particles duringany meaningful interaction with astronauts or robotic probes. This Note findsthat up to 5% of escaped asteroid fragments will cross Earth-geosynchronousorbits and estimates the risk to satellites from particle escapes or completedisruption of a loosely bound rubble pile.

Quantifying hazards: asteroid disruption in lunar distant retrograde orbits