The 16 - 35 metre wide asteroid 2014 US56 will make a close pass (25.0 lunar distances, 0.0643 AU) travelling at 4.33 km/second, to the Earth-Moon system on the 7th November 2014 @ 13:48 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).