(15430) 1998 UR31

Main-belt asteroid binary (15430) 1998 UR 31 #D6D6D6 yes SCAP 22 October 1998 Beijing Xinglong Obs. main-belt 1980 EK 12000 AB 153 (15430) 1998 UR 31 13 January 2016 (JD 2457400.5) 0 22044 days (60.35 yr) 2.6001 AU Gm on on 1.8433 AU Gm on 2.2217 AU Gm on 0.17032 3.31 yr (1209.6 d) 245.22° 0.29763 ms / day 8.1801° 62.806° 177.42° 0.829914 AU Gm on 2.52735 h d on on 14.2 (15430) 1998 UR 31 is a main-belt binary asteroid. It was discovered through the Beijing Schmidt CCD Asteroid Program at the Xinglong Station in the Chinese province of Hebei on October 22, 1998. A moon was discovered orbiting the asteroid in 2010. The moon has an orbital period of almost exactly a day, and is tidally locked with the asteroid.Johnston Robert (15430) 1998 UR31 http://www.johnstonsarchive.net/astro/astmoons/am-15430.html johnstonsarchive.net 29 May 2015 See also List of minor planets: 15001–16000 References 2015-01-28 last obs. JPL Small-Body Database Browser: 15430 (1998 UR31) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2015430 Jet Propulsion Laboratory 5 April 2016 External links Asteroids with Satellites, Robert Johnston, johnstonsarchive.net 15430 15430 (15431) 1998 UQ32 Category:Background asteroids Category:Discoveries by SCAP Category:Binary asteroids 19981022