2010 XC15

2010 XC15
Discovery[1]
Discovered by Catalina Sky Survey (703)
0.68-m Schmidt
Discovery date 2010-12-05
Designations
MPC designation 2010 XC15
Aten NEO,
PHA[2]
Orbital characteristics[2]
Epoch 2013-Nov-04
(Uncertainty=2)[2]
Aphelion 1.041 AU (Q)
Perihelion 0.4287 AU (q)
0.73499 AU (a)
Eccentricity 0.4168
0.63 yr
45.19° (M)
Inclination 8.382°
94.51°
157.6°
Physical characteristics
Dimensions ~200 metres (660 ft)[3]
21.4[2]

    2010 XC15 (also written 2010 XC15) is a near-Earth asteroid and potentially hazardous object.[2] It has an observation arc of 2 years and an Uncertainty Parameter of 2.[2] It was discovered on 5 December 2010 by the Catalina Sky Survey at an apparent magnitude of 17.5 using a 0.68-metre (27 in) Schmidt.[1]

    Based on an absolute magnitude of 21.4,[2] the asteroid has an estimated diameter of about 200 metres (660 ft).[3] 2010 XC15 is noted for a close approach to Earth on 27 December 1976 at a distance of about 0.0062 AU (930,000 km; 580,000 mi).[4][5] As of November 2011 with an observation arc of 40 days, the JPL Small-Body Database showed that the uncertainty region of the asteroid during the 1976 could pass anywhere from 0.001 AU to 0.018 AU from Earth.[4] During the 1976 close approach the asteroid reached about apparent magnitude 14.[6]

    The asteroid will pass 0.0051 AU (760,000 km; 470,000 mi) from Earth on 27 December 2022,[4][5] allowing a refinement to the known trajectory. The uncertainty region as of 2013 suggests that the asteroid may have passed inside the orbit of the Moon in 1907, but the nominal solution suggests the pass was about 0.007 AU (1,000,000 km; 650,000 mi).[4]

    The asteroid 2002 JE9, with a much larger observation arc, is known to have passed 0.0015 AU (220,000 km; 140,000 mi) from Earth on 11 April 1971.

    References

    1. ↑ 1.0 1.1 "MPEC 2010-X66 : 2010 XC15". IAU Minor Planet Center. 2010-12-07. Retrieved 2011-10-30. (K10X15C)
    2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 "JPL Small-Body Database Browser: (2010 XC15)" (last observation: 2012-11-25; arc: 1.97 years). Jet Propulsion Laboratory. Retrieved 2013-09-18.
    3. ↑ 3.0 3.1 "Near Earth Asteroids (NEAs)" (Version 20.1). International Astronomical Union. 13 October 2011. Retrieved 2011-10-30.
    4. ↑ 4.0 4.1 4.2 4.3 "JPL Close-Approach Data: (2010 XC15)" (last observation: 2012-11-25; arc: 1.97 years). Retrieved 2013-09-18.
    5. ↑ 5.0 5.1 "NEODyS-2 Close Approaches for 2010XC15". Near Earth Objects - Dynamic Site. Retrieved 2011-10-30.
    6. ↑ "2010XC15 Ephemerides for 26 December 1976". NEODyS (Near Earth Objects - Dynamic Site). Retrieved 2013-09-18.

    External links