The 61 - 140 metre wide asteroid 2011 QY11 will make a close pass (52.6 lunar distances, 0.1352 AU), travelling at 6.63 km/second, to the Earth-Moon system on the 1st September, 2011 @ 08:10 UT ±11:58.
Orbital elements:
2011 QY11 Earth MOID = 0.1133 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 356.99033 (2000.0) P Q
n 0.23449361 Peri. 13.25442 +0.98489982 +0.17285478
a 2.6044461 Node 336.78501 -0.16099341 +0.89390447
e 0.5700159 Incl. 1.40616 -0.06366683 +0.41358920
P 4.20 H 23.3 G 0.15 U 7