* Astronomy

Orbital elements:
2013 FL9                                                 Earth MOID = 0.0312 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 320.59597              (2000.0)            P               Q
n   0.63536653     Peri.  113.65899     +0.32506349     +0.94535959
a   1.3400464      Node   175.10157     -0.93881837     +0.32577888
e   0.4102931      Incl.   17.07980     -0.11381475     +0.01278122
P   1.55           H   23.1           G   0.15           U   9

MPEC 2013 - F38

Key to Orbital elements

The 63 - 140 metre wide asteroid 2013 FL9 will make a close pass (67.9 lunar distances, 0.1744 AU), travelling at 13.19 km/second, to the Earth-Moon system on the 13th April, 2013 @ 02:58 UT ±00:33. 

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