The 19 - 42 metre wide asteroid 2014 MP will make a close pass (9.1 lunar distances, 0.0233 AU), travelling at 5.03 km/second, to the Earth-Moon system on the 22nd June 2014 @ 05:40 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).