Orbital elements:
2012 SA22 Earth MOID = 0.4223 AU
Epoch 2012 Sept. 10.0 TT = JDT 2456180.5 MPC
M 3.51421 (2000.0) P Q
n 0.23508199 Peri. 125.58857 +0.75477486 -0.44189188
a 2.6000986 Node 265.41744 +0.32281574 +0.89359068
e 0.5069367 Incl. 29.10232 +0.57105596 +0.07891300
P 4.19 H 18.2 G 0.15
From 38 observations 2012 Sept. 18-21.