The 120 - 270 metre wide asteroid (424392) 2007 YJ will make a close pass (71.0 LD, 0.1824 AU) travelling at 7.35 km/second, to the Earth-Moon system on the 5th April 2015 @ 01:20 UT ±00:02.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).