The 210 - 480 metre wide asteroid 1998 FF14 will make a close pass (36.1 lunar distances, 0.0928 AU), travelling at 21.40 km/second, to the Earth-Moon system on the 19th September, 2012 @ 07:12 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).
