* Astronomy

The 20 - 44 metre wide asteroid 2001 UP will make a close pass (44.7 lunar distances, 0.1149 AU), travelling at 11.55 km/second, to the Earth-Moon system on the 21st October, 2011 @ 05:50 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).