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Summary

Description2015 BN509 Radar Feb06.gif	English: Arecibo radar image of contact binary near-Earth asteroid 2015 BN509, taken on 6 February 2017.
Date	6 February 2017
Source	https://twitter.com/AreciboRadar/status/828603606865698817 https://www.businessinsider.com/hazardous-peanut-asteroid-2015-bn509-2017-2
Author	Arecibo Observatory/NASA/NSF

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