The 48 - 110 metre wide asteroid 2012 CA made a close pass (35.4 lunar distances, 0.0909 AU), travelling at 18.87 km/second, to the Earth-Moon system on the 31st January, 2012 @ 04:00 UT ±00:18.
Orbital elements:
2012 CA Earth MOID = 0.0913 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 57.76965 (2000.0) P Q
n 0.70849522 Peri. 320.98230 -0.13345895 -0.88843725
a 1.2461723 Node 131.53030 +0.99068735 -0.13165414
e 0.1625177 Incl. 35.91946 +0.02696810 +0.43971176
P 1.39 H 23.7 G 0.15 U 8