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2012 XE133
, also written 2012 XE133, is an asteroid that is a temporary co-orbital of Venus. ==Discovery, orbit and physical properties== was discovered on December 12, 2012 by J. A. Johnson working for the Catalina Sky Survey. As of March 2013, it has been observed 102 times with a data-arc span of 28 days. It is an Aten asteroid and its semi-major axis (0.7230 AU) is very similar to that of Venus but its eccentricity is rather large (0.4332) and its orbital inclination is also significant (6.711°). With an absolute magnitude of 23.4, it has a diameter in the range 62–138 m.
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