* Astronomy

The 320 - 720 metre wide asteroid 2003 UD22 will make a close pass (66.6 lunar distances, 0.1711 AU), travelling at 12.91 km/second, to the Earth-Moon system on the 6th April, 2012 @ 20:21 UT ±00:01.

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).