The 330 - 740 metre wide asteroid 2002 QY6 will make a close pass (49.7 lunar distances, 0.1276 AU), travelling at 22.68 km/second, to the Earth-Moon system on the 3rd October, 2011 @ 21:31 UT ±00:01.
The 360 - 800 metre wide asteroid 2002 QY6 will make a close pass (55.6 lunar distances, 0.1428 AU), travelling at 19.33 km/second, to the Earth-Moon system on the 31st July, 2010 @ 19:29 UT.