The 21 - 46 metre wide asteroid 2013 YV102 made a close pass (6.7 lunar distances, 0.0171 AU), travelling at 14.62 km/second, to the Earth-Moon system on the 7th January 2014 @ 03:12 UT ±00:01.
See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).