The 31 - 68 metre wide asteroid 2013 UC1 will make a close pass (23.7 lunar distances, 0.0609 AU), travelling at 4.16 km/second, to the Earth-Moon system on the 12th November, 2013 @ 07:54 UT ±00:06
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
