* Astronomy

The 1400 - 3100 metre wide asteroid 2002 DB4 will make a close pass (62.5 lunar distances, 0.1606 AU), travelling at 14.94 km/second, to the Earth-Moon system on the 15th April, 2011 @ 21:36 UT ±00:01.

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