Physical characterisation of (333358) 2001 WN1: a large, possibly water-rich, low delta-V near-Earth asteroid. Read more
The 360 - 800 metre wide asteroid 2001 WN1 will make a close pass (50.0 lunar distances, 0.1285 AU), travelling at 8.73 km/second, to the Earth-Moon system on the 9th November, 2012 @ 04:16 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).