The 190 - 420 metre wide asteroid 2012 BN11 will make a close pass (40.8 lunar distances, 0.1048 AU), travelling at 12.80 km/second, to the Earth-Moon system on the 29th February, 2012 @ 18:08 UT ±04:25.
Orbital elements:
2012 BN11 PHA, Earth MOID = 0.0228 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 342.13729 (2000.0) P Q
n 0.57326800 Peri. 66.09817 -0.76001348 +0.64916562
a 1.4351510 Node 154.34655 -0.61931204 -0.70892651
e 0.3653804 Incl. 4.11159 -0.19705865 -0.27569403
P 1.72 H 21.1 G 0.15 U 9