Orbital elements:
2011 YJ6 Earth MOID = 0.0584 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 30.32049 (2000.0) P Q
n 0.67118139 Peri. 217.31363 -0.59740497 -0.74502165
a 1.2919413 Node 271.34762 +0.78857710 -0.47848982
e 0.2208487 Incl. 17.26637 +0.14578567 -0.46474748
P 1.47 H 24.0 G 0.15 U 7
The 41 - 91 metre wide asteroid 2011 YJ6 will make a close pass (23.2 lunar distances, 0.0595 AU), travelling at 9.81 km/second, to the Earth-Moon system on the 27th December, 2011 @ 14:23 UT ±00:01.