The 18 - 40 metre wide asteroid 2014 EB4 made a close pass (8.4 lunar distances, 0.0215 AU), travelling at 8.49 km/second, to the Earth-Moon system on the 7th March 2014 @ 17:19 UT ±00:01.
See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).