Orbital elements:
2011 PK10 Earth MOID = 0.0256 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 8.08602 (2000.0) P Q
n 0.42069975 Peri. 173.73895 +0.72190884 +0.52325804
a 1.7639565 Node 140.77500 -0.66189485 +0.71302196
e 0.4121606 Incl. 45.73144 -0.20184856 -0.46669124
P 2.34 H 23.2 G 0.15 U 7
The 62 - 140 metre wide asteroid 2011 PK10 made a close pass (10.7 lunar distances, 0.0276 AU), travelling at 25.38 km/second, to the Earth-Moon system on the 13th August, 2011 @ 11:58 UT ±00:01.