Orbital elements:
2011 UU63 Earth MOID = 0.0255 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 306.41518 (2000.0) P Q
n 0.47691962 Peri. 261.23585 -0.31650286 -0.94450656
a 1.6224547 Node 207.71725 +0.92759251 -0.28876543
e 0.5383792 Incl. 10.89865 +0.19848946 -0.15659463
P 2.07 H 24.3 G 0.15 U 8
The 38 - 86 metre wide asteroid 2011 UU63 will make a close pass (12.7 lunar distances, 0.0326 AU), travelling at 15.55 km/second, to the Earth-Moon system on the 30th October, 2011 @ 02:54 UT ±00:02.