The 25 - 57 metre wide asteroid 2014 WF201 made a close pass (6.2 lunar distances, 0.0160 AU) travelling at 5.08 km/second, to the Earth-Moon system on the 23rd November 2014 @ 11:37 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).