The 150 - 340 metre wide asteroid 2000 EW70 will make a close pass (23.1-lunar distances, 0.0593-AU), travelling at 11.96-km/second, to the Earth-Moon system on the 23rd March, 2010. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).