The 120 - 260 metre wide asteroid 2015 FG37 will make a close pass (59.0 LD, 0.1516 AU) travelling at 7.40 km/second, to the Earth-Moon system on the 5th May 2015 @ 11:46 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).