Orbital elements:
2015 CM Earth MOID = 0.0220 AU
Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 MPC
M 325.37293 (2000.0) P Q
n 0.91731622 Peri. 155.39489 -0.43660037 -0.89070467
a 1.0490351 Node 320.15782 +0.78923471 -0.31166028
e 0.0423750 Incl. 11.39607 +0.43184336 -0.33092757
P 1.07 H 26.2 G 0.15 U 6
The 15 - 34 metre wide asteroid 2015 CM made a close pass (8.4 lunar distances, 0.0217 AU) travelling at 6.01 km/second, to the Earth-Moon system on the 9th February 2015 @ 05:36 UT ±00:04.