Orbital elements:
2015 CH13 Earth MOID = 0.0006 AU
Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 MPC
M 352.05361 (2000.0) P Q
n 0.49439921 Peri. 282.91170 +0.43689633 -0.89891932
a 1.5839843 Node 141.12952 +0.84414218 +0.39719695
e 0.5518015 Incl. 2.98174 +0.31071785 +0.18487465
P 1.99 H 28.6 G 0.15 U 6
The 5 - 12 metre wide asteroid 2015 CH13 made a close pass (0.7 LD, 0.0019 AU) travelling at 15.30 km/second, to the Earth-Moon system on the 11th February 2015 @ 06:17 UT ±00:01.