Discovery[1] | |
---|---|
Discovered by | LINEAR |
Discovery site | Lincoln Lab's ETS |
Discovery date | 2 December 2008 |
Designations | |
(386454) 2008 XM | |
2008 XM | |
Apollo · NEO · PHA[1][2] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 5.16 yr (1,884 days) |
Aphelion | 2.3334 AU |
Perihelion | 0.1111 AU |
1.2222 AU | |
Eccentricity | 0.9091 |
1.35 yr (494 days) | |
204.67° | |
0° 43m 45.84s / day | |
Inclination | 5.4478° |
240.63° | |
27.357° | |
Earth MOID | 0.0048 AU · 1.9 LD |
Physical characteristics | |
0.367±0.009 km[3] | |
0.128±0.032[3] | |
20.0[1] | |
(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.[2]
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