The 13 - 30 metre wide asteroid 2011 SQ5 will make a close pass (14.7 lunar distances, 0.0377 AU), travelling at 6.26 km/second, to the Earth-Moon system on the 29th September, 2011 @ 17:48 UT ±00:07.
Orbital elements:
2011 SQ5 Earth MOID = 0.0352 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 328.32315 (2000.0) P Q
n 0.53502382 Peri. 220.63426 +0.81589183 -0.57812689
a 1.5027520 Node 174.65887 +0.55336698 +0.77598670
e 0.3353866 Incl. 5.84360 +0.16764697 +0.25221804
P 1.84 H 26.5 G 0.15 U 9