* Astronomy

Orbital elements:
2013 BN18                                                Earth MOID = 0.0283 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 207.27705              (2000.0)            P               Q
n   0.91838440     Peri.  235.70304     -0.96806292     -0.04817494
a   1.0482215      Node   300.37700     +0.17235545     -0.84055703
e   0.0580970      Incl.   16.57001     -0.18206533     -0.53957674
P   1.07           H   24.5           G   0.15           U   8

MPEC 2013 - B41

Key to Orbital elements

The 33 - 74 metre wide asteroid 2013 BN18 will make a close pass (12.2 lunar distances, 0.0312 AU), travelling at 8.93 km/second, to the Earth-Moon system on the 21st January, 2013 @ 05:06 UT ±00:12. 

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