* Astronomy

Orbital elements:
2013 KH6                                                 Earth MOID = 0.0499 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 115.65599              (2000.0)            P               Q
n   1.11212128     Peri.  195.40167     +0.15237580     -0.95724282
a   0.9226450      Node   246.35102     +0.93276542     +0.22153260
e   0.1607900      Incl.   15.57182     +0.32669602     -0.18603628
P   0.89           H   23.6           G   0.15           U   7

MPEC 2013 - K51

Key to Orbital elements

The 48 - 110 metre wide asteroid 2013 KH6 made a close pass (20.1 lunar distances, 0.0518 AU), travelling at 8.12 km/second, to the Earth-Moon system on the 27th May, 2013 @ 04:20 UT ±00:14. 

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