The 31 - 68 metre wide asteroid 2005 KA will make a close pass (13.0 LD, 0.0335 AU) travelling at 4.62 km/second, to the Earth-Moon system on the 12th April 2015 @ 11:41 UT ±16:52.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).