(501647) 2014 SD224

Near-Earth asteroid September 2020 yes #FFC2E0 501647 2014 SD 224 2014SD224 Goldstone radar Dec26.gif Collage of radar images taken by Goldstone on 26 December 2020 Pan-STARRS 22 September 2014 (501647) 2014 SD 224 Aten NEO 2020-May-31 (JD 2459000.5) 1 6.3 years 1.3015 AU 0.65406 0.97779 AU 0.33107 353.15 days (0.97 years) 4.5484° 286.44° 75.398° 277.11° 0.017 AU e6km unit 0.024 AU e6km unit 3.66 AU e6km unit 92–210 meters (CNEOS)~150 m on 22.3 501647 2014 SD 224 is an Aten-type near-Earth asteroid around 150 m ft off us in diameter. It was discovered on 22 September 2014 when the asteroid was 0.29 AU e6km LD 2 unit on from Earth and had a solar elongation of 123 degrees. The glare of the Sun had masked the approach of the asteroid as it passed closest approach to Earth on 11 August 2014.Sun The asteroid now has a 6-year observation arc and a well-determined orbit. It also makes close approaches to Venus. 2020 2014 SD 224 was less than 90 degrees from the Sun until September 2020 when it still had a very faint apparent magnitude of 24. The asteroid was recovered on 22 November 2020 by Mt. Lemmon Survey. The asteroid came to opposition (opposite the Sun in the sky) on 12 December 2020 when it had a solar elongation of 149 degrees and a magnitude of 18. It reached a peak brightness on 23 December 2020 at magnitude 16.4, which is still fainter than Pluto. The asteroid safely passed closest approach to Earth on 25 December 2020 at 20:20 UT at a distance of 0.02 AU e6km LD 2 unit on. The 2020 close approach distance is known with an accuracy of roughly ±20 km. Notes Sun The asteroid was within 60 degrees of the Sun from February 2014 until 9 August 2014 04:11 UT. References MPEC 2014-S92 : 2014 SD224 IAU Minor Planet Center 2014-09-25 https://minorplanetcenter.net//mpec/K14/K14S92.html 2020-06-10 (K14SM4D) JPL Small-Body Database Browser: 501647 (2014 SD224) http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=501647;cad=1 Jet Propulsion Laboratory https://web.archive.org/web/20200608021937/https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=501647;cad=1 2020-06-08 live 2020-06-10 (501647) 2014SD224 Ephemerides for December 2020 NEODyS (Near Earth Objects – Dynamic Site) https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=501647&oc=500&y0=2020&m0=12&d0=1&h0=0&mi0=0&y1=2020&m1=12&d1=31&h1=0&mi1=0&ti=1.0&tiu=days 2020-06-10 External links 501647 501647 2014 SD224 2501647 501647 (501647) 2014 SD 224 501647 501647 Category:Near-Earth objects in 2014 20201225 20140922