The 310 - 690 metre wide asteroid 1992 BF will make a close pass (70.1 lunar distances, 0.1801 AU), travelling at 7.32 km/second, to the Earth-Moon system on the 12th January, 2011 @ 23:43 UT ±00:01. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).