The 32 - 71 metre wide asteroid 2014 SL260 will make a close pass (32.2 lunar distances, 0.0829 AU) travelling at 6.31 km/second, to the Earth-Moon system on the 15th October 2014 @ 22:16 UT ±00:04.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).