2013 XY8

2013 XY8 is a near-Earth Apollo asteroid that passed 0.00508 AU (760,000 km; 472,000 mi) from Earth on December 11, 2013. Slate magazine noted how although it missed by about 2 lunar distances, it was discovered just 5 days previous, on December 7, 2013. At 30–70 meters across it is bigger than the Chelyabinsk meteor. 2013 XY8 has been observed by radar and has a well determined orbit. It will pass about 0.0007 AU (100,000 km; 65,000 mi) from the Moon on 11 December 2095.