The 97 - 220 metre wide asteroid 2014 WD6 will make a close pass (66.3 lunar distances, 0.1705 AU) travelling at 13.09 km/second, to the Earth-Moon system on the 25th November 2014 @ 22:21 UT ±00:05.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).