Update: The 240 - 530 metre wide asteroid 2009 UE2 will make a close pass (46.3 Lunar Distances, 0.1190 AU), travelling at 10.00 km/s, to the Earth-Moon system on the 4th March, 2010.
The 250 - 570 metre wide asteroid 2009 UE2 will make a close pass (47.5 Lunar Distances, 0.1219 AU), travelling at 10.04 km/s, to the Earth-Moon system on the 5th March, 2010.
Orbital elements: 2009 UE2 Earth MOID = 0.1872 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 276.54948 (2000.0) P Q n 1.01953018 Peri. 194.50696 -0.99624506 +0.06035912 a 0.9776933 Node 348.40757 -0.00486389 -0.75479949 e 0.5646067 Incl. 17.99176 -0.08644148 -0.65317265 P 0.97 H 19.4 G 0.15 U 9