2012 XE133

2012 XE133
Discovery
Discovered by Catalina Sky Survey
Discovery date December 12, 2012
Designations
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)
194.21°
1.6032°/day
Inclination 6.7094°
281.088°
337.096°
Earth MOID 0.00246932 AU (369,405 km)
Jupiter MOID 4.01703 AU (600.939 Gm)
Physical characteristics
Dimensions 72 m[a][5]
23.4[2]

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

    Discovery, orbit and physical properties

    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

    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

    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, 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

    Notes

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

    References

    1. ↑ List Of Aten Minor Planets
    2. 1 2 3 "2012 XE133". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 3620867. Retrieved 3 April 2016.
    3. ↑ AstDys-2 on 2012 XE133 Retrieved 2013-02-20
    4. ↑ NEODyS-2 on 2012 XE133 Retrieved 2013-02-20
    5. ↑ Absolute-magnitude conversion table (H)
    6. 1 2 3 4 de la Fuente Marcos, C.; de la Fuente Marcos, R. "Asteroid 2012 XE133, a transient companion to Venus". Monthly Notices of the Royal Astronomical Society. 432 (2): 886–893. arXiv:1303.3705Freely accessible. Bibcode:2013MNRAS.432..886D. doi:10.1093/mnras/stt454.
    Further reading

    External links

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