The 23 - 52 metre wide asteroid 2008 TD will make a close pass (53.4 lunar distances, 0.1373 AU), travelling at 6.82 km/second, to the Earth-Moon system on the 4th July, 2013 @ 21:46 UT ±2 day 16:36.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).