The 9 - 20 metre wide asteroid 2014 HP2 will make a close pass (3.8 lunar distances, 0.0097 AU), travelling at 6.24 km/second, to the Earth-Moon system on the 24th April 2014 @ 06:34 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).