The 22 - 49 metre wide asteroid 2014 DY110 made a close pass (29.1 lunar distances, 0.0748 AU), travelling at 4.63 km/second, to the Earth-Moon system on the 28th February 2014 @ 07:02 UT ±01:42.
See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).