The 140 - 320 metre wide asteroid 2005 NE21 will make a close pass (60.5 lunar distances, 0.1555 AU), travelling at 10.77 km/second, to the Earth-Moon system on the 15th July, 2012 @ 00:23 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).
