The 40 - 89 metre wide asteroid 2014 WD120 made a close pass (31.1 lunar distances, 0.0799 AU) travelling at 18.35 km/second, to the Earth-Moon system on the 22nd November 2014 @ 03:49 UT ±00:02.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).