(745311) 2010 XC15

Near-Earth asteroid September 2025 yes #FFC2E0 (745311) 2010 XC 15 2010xc15.dec27.40MHz.0p05hz.movie.300s.v2b.gif An animation of 2010 XC 15's radar echo, as observed by the Goldstone Observatory. Catalina Sky Survey (703)0.68-m Schmidt 2010-12-05 (745311) 2010 XC 15 Aten NEO PHA 2020-Dec-17 (JD 2459200.5) 1 10.1 years 1.0412 AU Gm on on (Q) 0.42875 AU Gm on (q) 0.73497 AU Gm on (a) 0.41665 (e) 0.63 yr (230.15 d) 8.3848° (i) 94.474° (Ω) 151.705° (M) 157.66° (ω) 0.002356 AU km on ~200 m 21.4 1.5638°/day (n) 3.9932 AU Gm on (745311) 2010 XC 15 is an Aten near-Earth asteroid and potentially hazardous object that spends most of its time inside of the orbit of Earth. It has an observation arc of 10 years and an Uncertainty Parameter of 1. It was discovered on 5 December 2010 by the Catalina Sky Survey at an apparent magnitude of 17.5 using a 0.68 m in on Schmidt. Based on an absolute magnitude of 21.4, the asteroid has an estimated diameter of about 200 m. 2010 XC 15 is noted for a close approach to Earth on 27 December 1976 at a distance of about 0.00625 AU km mi on on. In 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 close approach could result in a pass anywhere from 0.001 AU to 0.018 AU from Earth. During the 1976 close approach the asteroid reached about an apparent magnitude of 14. The asteroid passed 0.00516 AU km mi on off from Earth on 27 December 2022, allowing a refinement to the known trajectory. The uncertainty region in 2013 suggested that the asteroid could have passed inside the orbit of the Moon in 1907, but is now known to have passed about 0.01 AU km mi on off from Earth in 1907. +2010 XC 15Position uncertainty and increasing divergence Date JPL SBDBnominal geocentricdistance (AU) uncertaintyregion(3-sigma)1907-12-26 0.011466 AU e6km unit ±640 thousand km1914-12-27 0.005121 AU e3km unit ±21 thousand km1976-12-27 0.006253 AU e3km unit ±260 km2022-12-27 0.005160 AU e3km unit ±320 km2064-12-26 0.008920 AU e6km unit ±80 thousand km2096-12-27 0.004309 AU e3km unit ±660 thousand km The asteroid 2002 JE 9, with a much larger observation arc, is known to have passed 0.0015 AU km mi on off from Earth on 11 April 1971. References last observation: 2012-11-25; arc: 1.97 years JPL Small-Body Database Browser: (2010 XC15) http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2010XC15 Jet Propulsion Laboratory 31 March 2016 MPEC 2010-X66 : 2010 XC15 IAU Minor Planet Center 2010-12-07 https://www.minorplanetcenter.net/mpec/K10/K10X66.html 2011-10-30 (K10X15C) 13 October 2011 Version 20.1 Near Earth Asteroids (NEAs) International Astronomical Union http://www.iau.org/public/nea/ 2011-10-30 2 March 2013 https://web.archive.org/web/20130302015203/http://iau.org/public/nea dead NEODyS-2 Close Approaches for 2010XC15 Near Earth Objects Dynamic Site http://newton.spacedys.com/neodys/index.php?pc=1.1.8&n=2010XC15 2011-10-30 last observation: 2012-11-25; arc: 1.97 years JPL Close-Approach Data: (2010 XC15) http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2010XC15;cad=1#cad 2013-09-18 2010XC15 Ephemerides for 26 December 1976 NEODyS (Near Earth Objects Dynamic Site) http://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2010XC15&oc=500&y0=1976&m0=12&d0=26&h0=0&mi0=0&y1=1976&m1=12&d1=28&h1=0&mi1=0&ti=1.0&tiu=hours 2013-09-18 External links 2010+XC15 2010XC15 745311 (745311) 2010 XC 15 Category:Aten asteroids Category:Discoveries by the Catalina Sky Survey Category:Potentially hazardous asteroids 20221227 20101205