The 19 - 43 metre wide asteroid 2015 GY12 will make a close pass (13.7 LD, 0.0351 AU) travelling at 12.39 km/second, to the Earth-Moon system on the 19th April 2015 @ 16:00 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
