The 63 - 140 metre wide asteroid 2014 KP76 will make a close pass (66.5 lunar distances, 0.1708 AU), travelling at 7.46 km/second, to the Earth-Moon system on the 9th June 2014 @ 04:27 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).