The 1300 - 2800 metre wide asteroid 2002 JN97 will make a close pass (61.4 lunar distances, 0.1579 AU), travelling at 21.85 km/second, to the Earth-Moon system on the 2nd August 2014 @ 09:34 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).