The 46 - 100 metre wide asteroid 2013 TY5 will make a close pass (31.7 lunar distances, 0.0813 AU), travelling at 10.45 km/second, to the Earth-Moon system on the 26th October, 2013 @ 19:48 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).