The 22 - 49 metre wide asteroid 2014 UV57 will make a close pass (18.0 lunar distances, 0.0463 AU) travelling at 7.61 km/second, to the Earth-Moon system on the 9th November 2014 @ 22:22 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).
