* Astronomy

Orbital elements:
2013 CL22                                                Earth MOID = 0.0022 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M  25.11346              (2000.0)            P               Q
n   0.26922024     Peri.  334.89078     -0.32856030     -0.94214474
a   2.3753680      Node   134.21127     +0.88143596     -0.33113116
e   0.5977809      Incl.    5.31683     +0.33929157     -0.05210988
P   3.66           H   24.7           G   0.15           U   6

MPEC 2013 - C24

Key to Orbital elements

The 30 - 68 metre wide asteroid 2013 CL22 made a close pass (1.2 lunar distances, 0.0031 AU), travelling at 9.66 km/second, to the Earth-Moon system on the 2nd February, 2013 @ 07:43 UT ±00:02. 

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).