The 60 - 140 metre wide asteroid 2014 EK24 will make a close pass (15.9 LD, 0.0410 AU) travelling at 2.88 km/second, to the Earth-Moon system on the 23rd February 2015 @ 17:32 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).