Orbital elements:
2011 KJ15 Earth MOID = 0.0220 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 11.31032 (2000.0) P Q
n 0.36508582 Peri. 268.70350 +0.97694204 +0.07928055
a 1.9388285 Node 86.72343 +0.00685673 +0.91637197
e 0.7375138 Incl. 11.45300 -0.21339455 +0.39239904
P 2.70 H 22.9 G 0.15 U 8
The 66 - 150 metre wide asteroid 2011 KJ15 will make a close pass (21.3 lunar distances, 0.0548 AU), travelling at 22.76 km/second, to the Earth-Moon system on the 9th June, 2011 @ 14:49 UT ±00:22.