Discovery[1] | |
---|---|
Discovered by | LINEAR |
Discovery site | Lincoln Lab's ETS |
Discovery date | 4 December 1997 |
Designations | |
(433953) 1997 XR2 | |
1997 XR2 | |
Apollo · NEO · PHA[1][2] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 19.20 yr (7,014 days) |
Aphelion | 1.2924 AU |
Perihelion | 0.8601 AU |
1.0762 AU | |
Eccentricity | 0.2008 |
1.12 yr (408 days) | |
316.19° | |
0° 52m 58.08s / day | |
Inclination | 7.1919° |
250.69° | |
84.604° | |
Earth MOID | 0.000135 AU · 0.05 LD |
Physical characteristics | |
0.2 km (generic)[3] 0.23 km[4] | |
Mass | 1.7×1010 kg[4] |
20.8[1] | |
(433953) 1997 XR2 is a sub-kilometer sized asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered on 4 December 1997, by the Lincoln Near-Earth Asteroid Research (LINEAR) program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.[2]
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