The 34 - 75 metre wide asteroid 2015 BJ311 will make a close pass (34.7 lunar distances, 0.0891 AU) travelling at 6.23 km/second, to the Earth-Moon system on the 25th January 2015 @ 08:42 UT ±00:25.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).