The 77 - 170 metre wide asteroid 2013 CW83 made a close pass (41.7 lunar distances, 0.1071 AU), travelling at 15.25 km/second, to the Earth-Moon system on the 9th February, 2013 @ 16:35 UT ±00:07.
Orbital elements:
2013 CW83 Earth MOID = 0.1060 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 134.20173 (2000.0) P Q
n 0.88939248 Peri. 65.37518 +0.78824301 -0.57072887
a 1.0708790 Node 327.91545 +0.27721571 +0.66315829
e 0.2795114 Incl. 25.66930 +0.54938549 +0.48424131
P 1.11 H 22.7 G 0.15 U 8