The 52 - 120 metre wide asteroid 2014 EC49 will make a close pass (34.5 lunar distances, 0.0886 AU), travelling at 8.14 km/second, to the Earth-Moon system on the 3rd April 2014 @ 03:29 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).