Discovery [1] | |
---|---|
Discovered by | Catalina Sky Survey ( 703) |
Discovery date | 5 December 2010 |
Designations | |
2010 XG11 | |
Amor NEO [2] | |
Orbital characteristics [2] | |
Epoch 13 January 2016 ( JD 2457400.5) | |
Uncertainty parameter 0 | |
Observation arc | 6191 days (16.95 yr) |
Aphelion | 2.1736 AU (325.17 Gm) (Q) |
Perihelion | 1.1349 AU (169.78 Gm) (q) |
1.6543 AU (247.48 Gm) (a) | |
Eccentricity | 0.31395 (e) |
2.13 yr (777.15 d) | |
192.11 ° (M) | |
0° 27m 47.628s /day (n) | |
Inclination | 25.129° (i) |
256.05° (Ω) | |
87.799° (ω) | |
Earth MOID | 0.353357 AU (52.8615 Gm) |
Jupiter MOID | 3.44289 AU (515.049 Gm) |
Physical characteristics | |
Dimensions | ~270 – 590 meters [3] |
19.3 – 24.9 | |
20.0 [2] | |
2010 XG11 is an Amor near-Earth asteroid. [2] It was discovered on 5 December 2010 by the Catalina Sky Survey at an apparent magnitude of 19.7 using a 0.68-meter (27 in) Schmidt–Cassegrain telescope. [1] Three precovery images are known from 1 July 1995. [4] With an observation arc of 16 years, the orbit is well determined with an orbital uncertainty of 0. [2] With an absolute magnitude of 20.0, [2] the asteroid is about 270–590 meters in diameter. [3]
With a Mars- minimum orbit intersection distance of 0.002 AU (300,000 km; 190,000 mi), the asteroid currently makes closer approaches to Mars than it does Earth. [4] On 29 July 2014 the asteroid passed 0.00805 AU (1,204,000 km; 748,000 mi) from Mars. [5] [6]