Update: The 240 - 530 metre wide asteroid 2009 UP1 made a close pass (29.5 Lunar Distances, 0.0757 AU), travelling at 12.30 km/s, to the Earth-Moon system on the 11th November, 2009.
Orbital elements: 2009 UP1 Earth MOID = 0.0710 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 19.18327 (2000.0) P Q n 0.52551177 Peri. 195.71538 +0.30408341 -0.91914526 a 1.5208315 Node 237.20226 +0.90299032 +0.36185406 e 0.4049939 Incl. 17.33145 +0.30354860 -0.15567157 P 1.88 H 20.2 G 0.15 U 9
The 250 - 560 metre wide asteroid 2009 UP1 will make a close pass (29.3 Lunar Distances, 0.0752 AU), travelling at 12.67 km/s, to the Earth-Moon system on the 11th November, 2009.