The 27 - 60 metre wide asteroid 2012 XA will make a close pass (14.6 lunar distances, 0.0374 AU), travelling at 4.69 km/second, to the Earth-Moon system on the 12th December, 2012 @ 08:39 UT ±00:26.
Orbital elements:
2012 XA Earth MOID = 0.0379 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 304.88550 (2000.0) P Q
n 0.61555946 Peri. 208.73926 -0.13762293 -0.98560233
a 1.3686405 Node 249.31490 +0.92765177 -0.09349916
e 0.2649689 Incl. 6.02673 +0.34716296 -0.14087568
P 1.60 H 25.0 G 0.15 U 7