The 100 - 230 metre wide asteroid 2013 CS83 made a close pass (65.7 lunar distances, 0.1688 AU), travelling at 15.45 km/second, to the Earth-Moon system on the 5th March, 2013 @ 14:55 UT ±00:02.
Orbital elements:
2013 CS83 Earth MOID = 0.0087 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 356.49135 (2000.0) P Q
n 0.53075926 Peri. 272.74972 -0.32392734 +0.94392799
a 1.5107908 Node 338.01798 -0.78611568 -0.30606782
e 0.6211797 Incl. 9.81437 -0.52639645 -0.12378382
P 1.86 H 22.2 G 0.15 U 9