The 58 - 130 metre wide asteroid 2013 YH48 will make a close pass (44.5 lunar distances, 0.1143 AU) travelling at 10.79 km/second, to the Earth-Moon system on the 18th November 2014 @ 18:37 UT ±04:15.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).