The 150 - 330 metre wide asteroid 2014 MK55 will make a close pass (53.7 lunar distances, 0.1379 AU) travelling at 7.89 km/second, to the Earth-Moon system on the 8th October 2014 @ 06:29 UT ±00:18.
Orbital elements:
2014 MK55 PHA, Earth MOID = 0.0306 AU
Epoch 2014 May 23.0 TT = JDT 2456800.5 MPC
M 277.09420 (2000.0) P Q
n 0.61222207 Peri. 207.94412 +0.98093253 -0.19377337
a 1.3736098 Node 163.20901 +0.18656039 +0.91729071
e 0.3740235 Incl. 2.96478 +0.05446641 +0.34789313
P 1.61 H 21.2 G 0.15 U 8