The 22 - 48 metre wide asteroid 2013 RC6 will make a close pass (18.5 lunar distances, 0.0476 AU), travelling at 11.79 km/second, to the Earth-Moon system on the 7th September, 2013 @ 16:29 UT ±00:02.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
