The 3000 - 6800 metre wide asteroid 1998 TU3 will make a close pass (49.2 lunar distances, 0.1265 AU), travelling at 16.03 km/second, to the Earth-Moon system on the 25th August, 2012 @ 22:29 UT ±00:01.
The 3300 - 7400 metre wide asteroid 1998 TU3 will make a close pass (69.1 lunar distances, 0.1774 AU), travelling at 9.85 km/second, to the Earth-Moon system on the 17th October, 2010 @ 10:25 UT.