The 36 - 80 metre wide asteroid 2013 WZ43 made a close pass (37.2 lunar distances, 0.0955 AU), travelling at 8.73 km/second, to the Earth-Moon system on the 29th November, 2013 @ 02:51 UT ±02:59.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).