The 130 - 280 metre wide asteroid 2003 YS17 will make a close pass (63.4 lunar distances, 0.1628 AU), travelling at 14.70 km/second, to the Earth-Moon system on the 10th January, 2013 @ 19:55 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).
