* Astronomy

Orbital elements:
2013 EC20                                                Earth MOID = 0.0012 AU
Epoch 2013 Feb. 17.0 TT = JDT 2456340.5                 MPC
M 337.18113              (2000.0)            P               Q
n   0.75617699     Peri.   11.40739     -0.99989256     -0.01068734
a   1.1932197      Node   167.96669     +0.00644233     -0.93517196
e   0.1691785      Incl.    2.75825     +0.01316686     -0.35403274
P   1.30           H   28.5           G   0.15
From 16 observations 2013 Mar. 7-8.

MPEC 2013 - E29

Key to Orbital elements

The 5 - 12 metre wide asteroid 2013 EC20 will make a close pass (0.4 lunar distances, 0.0010 AU), travelling at 3.57 km/second, to the Earth-Moon system on the 9th March, 2013 @ 02:41 UT ±00:01. 

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