The 49 - 110 metre wide asteroid 2015 HQ43 will make a close pass (63.0 LD, 0.1618 AU) travelling at 2.94 km/second, to the Earth-Moon system on the 7th May 2015 @ 06:29 UT ±03:50.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).