(386454) 2008 XM

(386454) 2008 XM is a highly eccentric, sub-kilometer-sized asteroid, with one of the smallest known perihelions among all minor planets. It is classified as near-Earth object of the Apollo group and was discovered on 2 December 2008, by the LINEAR program at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States.

(386454) 2008 XM
Discovery
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date2 December 2008
Designations
MPC designation
(386454) 2008 XM
Alternative designations
2008 XM
Minor planet category
Apollo · NEO · PHA
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc5.16 yr (1,884 days)
Aphelion2.3334 AU
Perihelion0.1111 AU
Semi-major axis
1.2222 AU
Eccentricity0.9091
Orbital period (sidereal)
1.35 yr (494 days)
Mean anomaly
204.67°
Mean motion
0° 43m 45.84s / day
Inclination5.4478°
Longitude of ascending node
240.63°
27.357°
Earth MOID0.0048 AU · 1.9 LD
Physical characteristics
Mean diameter
0.367±0.009 km
0.128±0.032
20.0
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