The 31 - 69 metre wide asteroid 2014 FF7 will make a close pass (45.3 lunar distances, 0.1163 AU), travelling at 4.73 km/second, to the Earth-Moon system on the 29th March 2014 @ 00:43 UT ±01:49.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).