Update: The 240 - 540 metre wide asteroid 2005 CJ will make a close pass (31.9 lunar distances, 0.0818 AU), travelling at 9.88 km/second, to the Earth-Moon system on the 27th October, 2011 @ 11:10 UT ±00:01.
Orbital elements:
2005 CJ = 2011 QY39 PHA, Earth MOID = 0.0071 AU
Id. P. Bacci
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 319.28699 (2000.0) P Q
n 0.42609081 Peri. 81.59551 +0.17768022 -0.98408809
a 1.7490462 Node 358.16949 +0.89526795 +0.16189860
e 0.5257910 Incl. 1.08507 +0.40856460 +0.07320840
P 2.31 H 20.3 G 0.15 U 1
The 230 - 520 metre wide asteroid 2005 CJ will make a close pass (32.2 lunar distances, 0.0827 AU), travelling at 9.87 km/second, to the Earth-Moon system on the 27th October, 2011 @ 16:03 UT ±1 day 03:27.