The 64 - 140 metre wide asteroid 2014 SR260 will make a close pass (75.3 lunar distances, 0.1934 AU) travelling at 6.42 km/second, to the Earth-Moon system on the 28th October 2014 @ 17:26 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).