The 93 - 210 metre wide asteroid 2015 FS33 will make a close pass (24.4 LD, 0.0627 AU) travelling at 23.30 km/second, to the Earth-Moon system on the 8th April 2015 @ 19:57 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).