Orbital elements:
2012 UU158 Earth MOID = 0.0009 AU
Epoch 2012 Oct. 20.0 TT = JDT 2456220.5 MPC
M 52.03727 (2000.0) P Q
n 0.82387680 Peri. 262.22690 +0.32498602 +0.94436604
a 1.1269238 Node 26.90801 -0.81767856 +0.30744889
e 0.4014246 Incl. 6.41517 -0.47516929 +0.11682446
P 1.20 H 26.6 G 0.15
From 7 observations 2012 Oct. 23-25.