The 30 - 66 metre wide asteroid 2006 BL8 will make a close pass (9.3 lunar distances, 0.0239 AU), travelling at 11.51 km/second, to the Earth-Moon system on the 26th July, 2013 @ 02:35 UT ±1 day 23:55.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).