The 290 - 640 metre wide asteroid 2010 WB3 will make a close pass (59.3 lunar distances, 0.1525 AU), travelling at 25.17 km/second, to the Earth-Moon system on the 14th November, 2012 @ 17:23 UT ±00:01.
Orbital elements:
2010 WB3 Earth MOID = 0.1109 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 313.36668 (2000.0) P Q
n 0.51430932 Peri. 195.06436 -0.98305701 -0.17098154
a 1.5428361 Node 334.80106 +0.18009527 -0.83385901
e 0.7733327 Incl. 8.92622 +0.03412649 -0.52482804
P 1.92 H 19.8 G 0.15 U 4