The 31 - 69 metre wide asteroid 2014 UK114 made a close pass (53.5 lunar distances, 0.1374 AU) travelling at 4.91 km/second, to the Earth-Moon system on the 25th October 2014 @ 05:47 UT ±05:11.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).