Orbital elements:
2008 WN2 PHA, Earth MOID = 0.0482 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 174.03533 (2000.0) P Q
n 0.58386371 Peri. 283.26010 -0.86846767 -0.49342194
a 1.4177350 Node 227.19784 +0.47637907 -0.80386042
e 0.3119470 Incl. 3.74673 +0.13721112 -0.33217949
P 1.69 H 20.8 G 0.15 U 1
The 180m-410m wide asteroid 2008 WN2, made a close flyby of the Earth on the 23rd March, 2009 passing by around seven million, two hundred and seventy thousand km.