Orbital elements:
2012 KY41 Earth MOID = 0.1041 AU
Epoch 2012 May 13.0 TT = JDT 2456060.5 MPC
M 253.58125 (2000.0) P Q
n 0.35015346 Peri. 147.75304 +0.95838536 -0.10311603
a 1.9935652 Node 220.92736 +0.08413727 +0.99309332
e 0.4723864 Incl. 23.97608 +0.27279741 +0.05597099
P 2.81 H 17.9 G 0.15
From 17 observations 2012 May 21-27.