The 42 - 94 metre wide asteroid 2014 RW22 made a close pass (19.5 lunar distances, 0.0501 AU), travelling at 4.82 km/second, to the Earth-Moon system on the 13th September 2014 @ 21:23 UT ±00:18.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
