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2013 EC
2013 EC is a near-Earth asteroid that passed Earth just inside the orbit of the Moon, with its closest approach on March 4, 2013 at 07:35 UTC.〔(Universe Today: Newly Found Asteroid to Pass Within Moon’s Orbit on March 4, 2013 )〕 2013 EC was discovered by the Mount Lemmon Observatory in Arizona, United States, on March 2, 2013.〔(The Watchers: A newly found Asteroid 2013 EC will pass inside the orbit of the Moon on March 4, 2013 )〕〔(【引用サイトリンク】url=http://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=2013+EC )〕 Asteroid 2013 EC is estimated to be equal in size to the Chelyabinsk meteor that impacted on February 15, 2013. Its measurement is about 10 to 17 meters wide (33 to 55 feet).〔(International Business Times: Newly Discovered Asteroid 2013 EC Makes Near-Earth Flyby on March 4 )〕〔(【引用サイトリンク】url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2013EC;cad=1 )〕
==See also==
*Near-Earth Asteroid Tracking
*List of Near-Earth asteroids by distance from Sun
*List of asteroid close approaches to Earth
*2012 DA14
*99942 Apophis
*2013 ET
*2013 PJ10
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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