The 16 - 35 metre wide asteroid 2015 FN33 will make a close pass (9.8 LD, 0.0252 AU) travelling at 5.16 km/second, to the Earth-Moon system on the 6th April 2015 @ 21:01 UT ±00:03.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).