The 440 - 990 metre wide asteroid 2011 SJ16 will make a close pass (48.5 lunar distances, 0.1247 AU), travelling at 24.98 km/second, to the Earth-Moon system on the 21st October, 2011 @ 13:42 UT ±11:58.
Orbital elements:
2011 SJ16 Earth MOID = 0.1083 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 339.92453 (2000.0) P Q
n 0.19856302 Peri. 293.37585 -0.49507350 -0.86813346
a 2.9098491 Node 186.63388 +0.86604955 -0.48980899
e 0.8066328 Incl. 17.79518 +0.06971667 -0.08019625
P 4.96 H 18.9 G 0.15 U 8