The 50 - 110 metre wide asteroid 2015 HU171 will make a close pass (27.4 LD, 0.0704 AU) travelling at 11.09 km/second, to the Earth-Moon system on the 5th May 2015 @ 12:49 UT ±00:01.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
