The 230 - 520 metre wide asteroid 2005 ST1 will make a close pass (51.3 lunar distances, 0.1319 AU), travelling at 12.88 km/second, to the Earth-Moon system on the 14th October, 2012 @ 09:43 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
