The 1800 - 4100 metre wide asteroid 2000 DK79 will make a close pass (49.0 lunar distances, 0.1260 AU), travelling at 33.10 km/second, to the Earth-Moon system on the 10th November, 2013 @ 05:26 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).