The 6 - 14 metre wide asteroid 2004 UH1 will make a close pass (54.1 LD, 0.1389 AU) travelling at 8.19 km/second, to the Earth-Moon system on the 24th June 2015 @ 11:06 UT ±07:59.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).