The 24 - 53 metre wide asteroid 2015 GL will make a close pass (6.0 LD, 0.0155 AU) travelling at 8.62 km/second, to the Earth-Moon system on the 13th April 2015 @ 05:53 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).