The 220 - 480 metre wide asteroid 2008 TR10 will make a close pass (56.0 lunar distances, 0.1439 AU), travelling at 5.43 km/second, to the Earth-Moon system on the 15th July, 2011 @ 14:59 UT ±00:01. See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).