* Astronomy

Orbital elements:
2012 KX                                                  Earth MOID = 0.0566 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 342.54878              (2000.0)            P               Q
n   0.25906114     Peri.  135.97010     -0.52093280     +0.85184403
a   2.4370693      Node   102.56350     -0.79783552     -0.46312562
e   0.5671119      Incl.    3.21193     -0.30345922     -0.24469654
P   3.80           H   23.3           G   0.15           U   7

MPEC 2012 - K11

The 60 - 130 metre wide asteroid 2012 KX will make a close pass (22.1 lunar distances, 0.0569 AU), travelling at 7.09 km/second, to the Earth-Moon system on the 26th May, 2012 @ 01:53 UT ±00:59. 

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