The 92 - 210 metre wide asteroid 2000 WC1 will make a close pass (40.0 lunar distances, 0.1027 AU) travelling at 13.77 km/second, to the Earth-Moon system on the 15th November 2014 @ 11:29 UT ±00:03.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).