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2011 CQ1
is a meteoroid discovered on February 4, 2011 by Richard A. Kowalski, at the Catalina Sky Survey.〔 On the same day the meteoroid passed within 0.85 Earth radii () of Earth's surface, and was perturbed from the Apollo class to the Aten class of near-Earth objects.〔 With a relative velocity of only 9.7 km/s,〔 had the asteroid passed less than 0.5 Earth radii from Earth's surface, it would have fallen as a brilliant fireball. The meteoroid is about wide.〔 The meteoroid was removed from the Sentry Risk Table on February 5, 2011.〔 ==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「2011 CQ1」の詳細全文を読む
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