The 67 - 150 metre wide asteroid 2014 UG57 will make a close pass (56.7 lunar distances, 0.1457 AU) travelling at 6.82 km/second, to the Earth-Moon system on the 19th November 2014 @ 13:28 UT ±00:01.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).