The 12 - 27 metre wide asteroid 2013 UV3 will make a close pass (0.7 lunar distances, 0.0019 AU), travelling at 16.69 km/second, to the Earth-Moon system on the 29th October, 2013 @ 21:42 UT ±00:20.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).