The 25 - 56 metre wide asteroid 2015 DQ will make a close pass (40.2 LD, 0.1032 AU) travelling at 13.32 km/second, to the Earth-Moon system on the 20th February 2015 @ 18:54 UT ±00:05.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).