(433953) 1997 XR2

(433953) 1997 XR2
Discovery[1]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date4 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 arc19.20 yr (7,014 days)
Aphelion1.2924 AU
Perihelion0.8601 AU
1.0762 AU
Eccentricity0.2008
1.12 yr (408 days)
316.19°
0° 52m 58.08s / day
Inclination7.1919°
250.69°
84.604°
Earth MOID0.000135 AU · 0.05 LD
Physical characteristics
0.2 km (generic)[3]
0.23 km[4]
Mass1.7×1010 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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  4. ^ a b Cite error: The named reference JPL-Impact-Risk was invoked but never defined (see the help page).