* Astronomy

Orbital elements:
2013 ET                                                  Earth MOID = 0.0042 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 346.44314              (2000.0)            P               Q
n   0.74389920     Peri.   81.86024     -0.28829794     +0.95745627
a   1.2063129      Node   171.35175     -0.90846931     -0.26930146
e   0.3847511      Incl.    4.85238     -0.30260174     -0.10370250
P   1.32           H   23.1           G   0.15           U   7

MPEC 2013 - E14

Key to Orbital elements

The 64 - 140 metre wide asteroid 2013 ET will make a close pass (2.5 lunar distances, 0.0065 AU), travelling at 11.88 km/second, to the Earth-Moon system on the 9th March, 2013 @ 12:07 UT ±00:10. 

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