The 180 - 400 metre wide asteroid 2011 SQ12 will make a close pass (37.8 lunar distances, 0.0970 AU), travelling at 8.94 km/second, to the Earth-Moon system on the 14th October, 2011 @ 09:09 UT ±00:01.
Orbital elements:
2011 SQ12 Earth MOID = 0.0947 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 327.26776 (2000.0) P Q
n 0.43387044 Peri. 40.27621 +0.65821297 -0.75196260
a 1.7280753 Node 8.77371 +0.61527106 +0.50963794
e 0.3974731 Incl. 13.71542 +0.43381703 +0.41811652
P 2.27 H 20.9 G 0.15 U 7