The 30 - 68 metre wide asteroid 2011 WS95 will make a close pass (7.2 lunar distances, 0.0185 AU), travelling at 8.71 km/second, to the Earth-Moon system on the 28th December, 2011 @ 22:59 UT ±01:54.
Orbital elements:
2011 WS95 Earth MOID = 0.0147 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 315.66070 (2000.0) P Q
n 0.30668254 Peri. 250.05259 -0.56154747 -0.82725843
a 2.1777600 Node 234.12266 +0.76703342 -0.51247774
e 0.5645575 Incl. 1.24093 +0.31036135 -0.23023913
P 3.21 H 24.7 G 0.15 U 9