The 28 - 62 metre wide asteroid 2015 BK4 will make a close pass (5.3 lunar distances, 0.0137 AU) travelling at 11.10 km/second, to the Earth-Moon system on the 25th January 2015 @ 01:25 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).
