The 10 - 23 metre wide asteroid 2014 GQ17 will make a close pass (33.2 lunar distances, 0.08555 AU), travelling at 8.12 km/second, to the Earth on the 16th June 2018 @ 16:40 UT ±00:07.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).