The 23 - 53 metre wide asteroid 2018 GF2 will make a close pass (27.5 lunar distances, 0.07077 AU), travelling at 8.80 km/second, to the Earth on the 24th April 2018 @ 04:53 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).