The 12 - 27 metre wide asteroid 2014 KQ84 will make a close pass (8.6 lunar distances, 0.0221 AU), travelling at 3.56 km/second, to the Earth-Moon system on the 5th June 2014 @ 08:44 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).