The 48 - 110 metre wide asteroid 2013 UM5 will make a close pass (20.8 lunar distances, 0.0535 AU), travelling at 19.49 km/second, to the Earth-Moon system on the 5th November, 2013 @ 10:14 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).