The 55 - 120 metre wide asteroid 2014 WN4 made a close pass (21.1 lunar distances, 0.0543 AU) travelling at 9.43 km/second, to the Earth-Moon system on the 17th November 2014 @ 11:00 UT ±00:04.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
