The 47 - 110 metre wide asteroid 2015 DK155 will make a close pass (30.2 LD, 0.0777 AU) travelling at 12.30 km/second, to the Earth-Moon system on the 5th March 2015 @ 11:28 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).