2003 UY12 = 2003 US12
The 51 - 110 metre wide asteroid 2003 UY12 will make a close pass (33.6 lunar distances, 0.0863 AU), travelling at 14.25 km/second, to the Earth-Moon system on the 18th October, 2013 @ 18:18 UT ±2 days 08:14.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
