The 39 - 87 metre wide asteroid 2013 UL9 made a close pass (42.2 lunar distances, 0.1084 AU), travelling at 7.92 km/second, to the Earth-Moon system on the 31st October, 2013 @ 13:14 UT ±03:14.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
