The 860 - 1900 metre wide asteroid 2002 JR9 will make a close pass (63.5 lunar distances, 0.1631 AU), travelling at 12.65 km/second, to the Earth-Moon system on the 31st August, 2013 @ 10:44 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).
