The 85 - 190 metre wide asteroid 2009 WH106 will make a close pass (20.9 lunar distances, 0.0536 AU), travelling at 11.17 km/second, to the Earth-Moon system on the 1st September, 2013 @ 14:51 UT ±00:01.
Orbital elements: 2009 WH106 Earth MOID = 0.0408 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 17.97470 (2000.0) P Q n 0.24686080 Peri. 98.39141 +0.95513186 -0.29183905 a 2.5167184 Node 278.58797 +0.24764374 +0.88048144 e 0.6231551 Incl. 2.92915 +0.16246756 +0.37360727 P 3.99 H 22.5 G 0.15 U 8