The 12 - 26 metre wide asteroid 2013 UB will make a close pass (1.6 lunar distances, 0.0041 AU), travelling at 7.86 km/second, to the Earth-Moon system on the 19th October, 2013 @ 09:52 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).
