The 180 - 400 metre wide asteroid 2013 CW35 will make a close pass (67.8 lunar distances, 0.1742 AU), travelling at 5.24 km/second, to the Earth-Moon system on the 15th March, 2013 @ 11:10 UT ±00:41.
Orbital elements:
2013 CW35 Earth MOID = 0.1521 AU
Epoch 2013 Jan. 28.0 TT = JDT 2456320.5 MPC
M 344.63668 (2000.0) P Q
n 0.35336389 Peri. 197.50280 -0.99799716 -0.05173856
a 1.9814720 Node 339.42805 +0.06290481 -0.87246359
e 0.4229227 Incl. 5.94559 -0.00668245 -0.48593251
P 2.79 H 20.7 G 0.15
From 21 observations 2013 Feb. 5-8.