The 11 - 25 metre wide asteroid 2016 TY55 will make a close pass (50.3 lunar distances, 0.12939 AU), travelling at 3.23 km/second, to the Earth on the 14th May 2018 @ 03:20 UT ±03:45.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).