2012 XE133

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2012 XE133
Discovered by Catalina Sky Survey
Discovery date December 12, 2012
MPC designation 2012 XE133
Aten asteroid,[1][2]
Mercury grazer,
Venus crosser,
Earth crosser
Orbital characteristics[2][3][4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 6
Aphelion 1.0360 AU (154.98 Gm)
Perihelion 0.40995 AU (61.328 Gm)
0.72300 AU (108.159 Gm)
Eccentricity 0.43299
0.61 yr (224.5 d)
Inclination 6.7094°
Earth MOID 0.00246932 AU (369,405 km)
Jupiter MOID 4.01703 AU (600.939 Gm)
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 was included in the Minor Planet Center list of Potentially Hazardous Asteroids (PHAs) because it comes to within 0.05 AU of Earth periodically,[citation needed] but it has since been removed. 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]