* Astronomy

Orbital elements:
2013 DX                                                  Earth MOID = 0.1062 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M  21.98611              (2000.0)            P               Q
n   0.35462669     Peri.  351.71828     -0.80404738     -0.59416974
a   1.9767653      Node   151.79317     +0.54809764     -0.75484830
e   0.4466573      Incl.    2.62931     +0.23042741     -0.27778836
P   2.78           H   24.6           G   0.15           U   8

MPEC 2013 - D30

Key to Orbital elements

The 32 - 72 metre wide asteroid 2013 DX will make a close pass (45.5 lunar distances, 0.1168 AU), travelling at 4.75 km/second, to the Earth-Moon system on the 19th February, 2013 @ 04:30 UT ±1 day 23:02. 

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