The 230 - 520 metre wide asteroid 2008 LV16 will make a close pass (52.9 lunar distances, 0.1360 AU), travelling at 12.33 km/second, to the Earth-Moon system on the 29th July 2014 @ 17:16 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).