The 13 - 28 metre wide asteroid 2013 TG6 will make a close pass (68.3 lunar distances, 0.1755 AU), travelling at 5.14 km/second, to the Earth-Moon system on the 17th April 2014 @ 02:10 UT ±00:36.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).