The 120 - 260 metre wide asteroid 2015 HL1 will make a close pass (69.9 LD, 0.1795 AU) travelling at 8.45 km/second, to the Earth-Moon system on the 17th May 2015 @ 12:23 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).
