Orbital elements:
2011 SF173 Earth MOID = 0.3193 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 357.89713 (2000.0) P Q
n 0.17763798 Peri. 332.47344 +0.98391383 +0.05705819
a 3.1340950 Node 25.98595 +0.07595968 +0.72406702
e 0.5890996 Incl. 22.72858 -0.16169017 +0.68736549
P 5.55 H 22.0 G 0.15 U 7