The 4 - 8.5 metre wide asteroid 2013 UX2 made a close pass (0.4 lunar distances, 0.0010 AU), travelling at 4.37 km/second, to the Earth-Moon system on the 25th October, 2013 @ 15:29 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).
