The 170 - 390 metre wide asteroid 2011 SF25 will make a close pass (56.1 lunar distances, 0.1443 AU), travelling at 10.44 km/second, to the Earth-Moon system on the 1st October, 2011 @ 22:04 UT ±00:29.
Orbital elements:
2011 SF25 Earth MOID = 0.1166 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 344.84376 (2000.0) P Q
n 0.25812761 Peri. 49.24003 +0.78211787 -0.62237422
a 2.4429416 Node 349.12964 +0.51137850 +0.66921840
e 0.5670976 Incl. 9.36618 +0.35606694 +0.40595204
P 3.82 H 21.0 G 0.15 U 7