The 300 - 670 metre wide asteroid 1999 VP6 will make a close pass (68.7 lunar distances, 0.1766 au), travelling at 7.15 km/second, to the Earth-Moon system on the 17th October, 2012 @ 17:18 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).