The 30 - 67 metre wide asteroid 2015 FW284 will make a close pass (11.5 LD, 0.0296 AU) travelling at 14.85 km/second, to the Earth-Moon system on the 1st April 2015 @ 20:54 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).