The 200 - 440 metre wide asteroid 2000 ED14 will make a close pass (58.3 lunar distances, 0.1499 AU), travelling at 22.47 km/second, to the Earth-Moon system on the 12th March, 2013 @ 10:35 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).