The 26 - 59 metre wide asteroid 1992 JD will make a close pass (75.7 lunar distances, 0.1946 au), travelling at 8.29 km/second, to the Earth-Moon system on the 24th October, 2012 @ 21:15 UT ±10:48.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).