The 50 - 110 metre wide asteroid 2012 TN139 will make a close pass (62.5 lunar distances, 0.1607 AU), travelling at 4.63 km/second, to the Earth-Moon system on the 16th October, 2012 @ 02:52 UT ±09:01.
Orbital elements:
2012 TN139 Earth MOID = 0.1564 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 355.28025 (2000.0) P Q
n 0.27063373 Peri. 309.76474 +0.92317316 -0.38154354
a 2.3670900 Node 72.70980 +0.36591627 +0.83516065
e 0.5149440 Incl. 2.80022 +0.11771405 +0.39614545
P 3.64 H 23.6 G 0.15 U 7