2012 XE133

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2012 XE133
Discovered by Catalina Sky Survey
Discovery date December 12, 2012
MPC designation 2012 XE133
Minor planet category Aten asteroid,[1][2]
Mercury grazer,
Venus crosser,
Earth crosser
Orbital characteristics[2][3][4]
Epoch April 18, 2013 (JD 2456400.5)
Aphelion 1.0361 AU
Perihelion 0.4098 AU
0.72297 AU
Eccentricity 0.4332
0.6147 y (224.53 d)
Inclination 6.711°
Physical characteristics
Dimensions 72 m[a][5]

2012 XE133, also written 2012 XE133, is an asteroid that is a temporary co-orbital of Venus.[6]

Discovery, orbit and physical properties[edit]

2012 XE133 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.

Quasi-satellite dynamical state and orbital evolution[edit]

2012 XE133 has been identified as a Venus co-orbital following a transitional path between Venus's Lagrangian points L5 point and L3 point.[6] Besides being a Venus co-orbital, this asteroid is also a Mercury grazer and an Earth crosser. 2012 XE133 exhibits resonant (or near-resonant) behavior with Mercury, Venus and the Earth.[6] Its short-term dynamical evolution is similar to that of two other Venus co-orbitals, 2001 CK32 and 2002 VE68.[6]

Potentially hazardous asteroid[edit]

2012 XE133 is included in the Minor Planet Center list of Potentially Hazardous Asteroids (PHAs) because it comes to within 0.05 AU of Earth periodically. It will approach Earth at 0.0055 AU (and the Moon at 0.0045 AU) on December 30, 2028.

See also[edit]


  • ^ This is assuming an albedo of 0.25–0.05.


Further reading

External links[edit]