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2010 XG11
is a near-Earth asteroid.〔 It was discovered on 5 December 2010 by the Catalina Sky Survey at an apparent magnitude of 19.7 using a Schmidt–Cassegrain telescope.〔 Three precovery images are known from 1 July 1995.〔 With an observation arc of 16 years, the orbit is well determined with an orbital uncertainty of 0.〔 With an absolute magnitude of 20.0,〔 the asteroid is about 270–590 meters in diameter.〔 With a Mars-minimum orbit intersection distance of , the asteroid currently makes closer approaches to Mars than it does Earth.〔 On 29 July 2014 the asteroid passed from Mars.〔〔 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「2010 XG11」の詳細全文を読む
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