The 66 - 150 metre wide asteroid 2014 UC58 made a close pass (59.1 lunar distances, 0.1518 AU) travelling at 13.23 km/second, to the Earth-Moon system on the 26th October 2014 @ 02:11 UT ±00:15.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).