The 32 - 71 metre wide asteroid 2013 VC10 will make a close pass (14.1 lunar distances, 0.0361 AU), travelling at 5.35 km/second, to the Earth-Moon system on the 17th December, 2013 @ 06:01 UT ±00:02.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).