The 18 - 41 metre wide asteroid 2014 LM9 will make a close pass (22.8 lunar distances, 0.0587 AU), travelling at 7.32 km/second, to the Earth-Moon system on the 8th June 2014 @ 22:52 UT ±00:11.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).