The 230 - 520 metre wide asteroid (194006) 2001 SG10 will make a close pass (75.6 LD, 0.1943 AU) travelling at 9.64 km/second, to the Earth-Moon system on the 11th July 2015 @ 08:06 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).