The 270 - 600 metre wide asteroid 2009 CN5 will make a close pass (66.7 lunar distances, 0.1714 AU), travelling at 10.56 km/second, to the Earth-Moon system on the 6th October, 2010 @ 09:42 UT.
Orbital elements: 2009 CN5 PHA, Earth MOID = 0.0410 AU Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC M 1.07731 (2000.0) P Q n 0.51833064 Peri. 52.24351 +0.73618074 -0.67587095 a 1.5348460 Node 350.10548 +0.53858294 +0.61652045 e 0.4648069 Incl. 11.80765 +0.40983696 +0.40385764 P 1.90 H 20.1 G 0.15 U 8