The 20 - 45 metre wide asteroid 2015 CG will make a close pass (7.1 LD, 0.0182 AU) travelling at 12.09 km/second, to the Earth-Moon system on the 11th February 2015 @ 13:14 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).