* Astronomy

The 240 - 530 metre wide asteroid 2004 EM20 made a close pass (59.8 lunar distances, 0.1536 AU), travelling at 14.75 km/second, to the Earth-Moon system on the 27th March, 2011 @ 08:05 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).