The 32 - 72 metre wide asteroid 2014 KL22 will make a close pass (13.3 lunar distances, 0.0341 AU), travelling at 6.96 km/second, to the Earth-Moon system on the 11th June 2014 @ 09:43 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).