The 92 - 210 metre wide asteroid 2014 HT184 will make a close pass (41.4 lunar distances, 0.1063 AU), travelling at 25.89 km/second, to the Earth-Moon system on the 20th May 2014 @ 11:51 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).