The 480 - 1100 metre wide asteroid 2011 UU106 will make a close pass (67.6 lunar distances, 0.1737 AU), travelling at 8.81 km/second, to the Earth-Moon system on the 11th March, 2012 @ 22:09 UT ±00:01.
Orbital elements:
2011 UU106 Earth MOID = 0.0776 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 292.43825 (2000.0) P Q
n 0.39987581 Peri. 241.65883 -0.68000379 -0.71465484
a 1.8246768 Node 252.17072 +0.71845855 -0.60485051
e 0.4788903 Incl. 9.91396 +0.14632892 -0.35131797
P 2.46 H 18.5 G 0.15 U 8