The 78 - 170 metre wide asteroid 2011 UY255 will make a close pass (41.5 lunar distances, 0.1067 AU), travelling at 6.64 km/second, to the Earth-Moon system on the 17th November, 2011 @ 20:26 UT ±07:38.
Orbital elements:
2011 UY255 Earth MOID = 0.0760 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 278.77193 (2000.0) P Q
n 0.62828559 Peri. 275.85862 -0.31251855 -0.94942655
a 1.3500960 Node 192.48104 +0.91762492 -0.29348178
e 0.3188485 Incl. 8.07404 +0.24555378 -0.11161392
P 1.57 H 22.7 G 0.15 U 9