The 130 - 300 metre wide asteroid 2000 KA will make a close pass (23.3 lunar distances, 0.0599 AU), travelling at 11.79 km/second, to the Earth-Moon system on the 29th November, 2013 @ 18:47 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).