The 36 - 81 metre wide asteroid 2015 FJ35 will make a close pass (60.6 LD, 0.1557 AU) travelling at 12.28 km/second, to the Earth-Moon system on the 24th March 2015 @ 13:32 UT ±00:16.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).