The 52 - 120 metre wide asteroid 2011 FS9 will make a close pass (56.3 lunar distances, 0.1447 AU), travelling at 4.35 km/second, to the Earth-Moon system on the 20th July, 2011 @ 12:29 UT ±17:02.
Orbital elements:
2011 FS9 Earth MOID = 0.0030 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 5.57892 (2000.0) P Q
n 0.92952556 Peri. 337.36922 -0.69482133 -0.71690575
a 1.0398288 Node 156.51748 +0.67985317 -0.68067686
e 0.0547647 Incl. 8.25027 +0.23456978 -0.15074869
P 1.06 H 23.6 G 0.15 U 7