The 3 - 7 metre wide asteroid 2013 WH25 made a close pass (0.4 lunar distances, 0.0009 AU), travelling at 20.89 km/second, to the Earth-Moon system on the 29th November, 2013 @ 00:52 UT ±00:02.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
