The 16 - 36 metre wide asteroid 2014 CB3 will make a close pass (8.8 lunar distances, 0.0227 AU), travelling at 7.55 km/second, to the Earth-Moon system on the 12th February 2014 @ 15:52 UT ±00:01.
See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).