The 70 - 160 metre wide asteroid 2013 UE3 will make a close pass (39.3 lunar distances, 0.1010 AU), travelling at 4.18 km/second, to the Earth-Moon system on the 1st December, 2013 @ 21:00 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).
