The 23 - 52 metre wide asteroid 2014 WW4 made a close pass (20.7 lunar distances, 0.0531 AU) travelling at 14.08 km/second, to the Earth-Moon system on the 17h November 2014 @ 13:44 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).
