* Astronomy

Orbital elements:
2012 KT12                                                Earth MOID = 0.0026 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 295.83501              (2000.0)            P               Q
n   0.71719876     Peri.   24.44541     -0.12910675     +0.99103722
a   1.2360699      Node   238.15318     -0.91632142     -0.13245350
e   0.1886681      Incl.    2.31432     -0.37906004     -0.01735770
P   1.37           H   26.2           G   0.15           U   7

MPEC 2012 - K39

The 15 - 35 metre wide asteroid 2012 KT12 will make a close pass (1.4 lunar distances, 0.0037 AU), travelling at 3.77 km/second, to the Earth-Moon system on the 23rd May, 2012 @ 17:13 UT ±00:16. 

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