The 24 - 53 metre wide asteroid 2011 UJ169 made a close pass (18.1 lunar distances, 0.0464 AU), travelling at 6.22 km/second, to the Earth-Moon system on the 27th October, 2011 @ 04:46 UT ±00:59.
Orbital elements:
2011 UJ169 Earth MOID = 0.0461 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 324.70175 (2000.0) P Q
n 0.64242675 Peri. 350.76891 +0.88987552 -0.44318353
a 1.3302103 Node 36.17121 +0.42938715 +0.73353720
e 0.2192691 Incl. 10.56487 +0.15410460 +0.51527812
P 1.53 H 25.2 G 0.15 U 6