The 44 - 99 metre wide asteroid 2012 UU9 made a close pass (51.5 lunar distances, 0.1324 AU), travelling at 11.54 km/second, to the Earth-Moon system on the 8th July 2014 @ 12:07 UT ±1 day 01:12.
Orbital elements:
2012 UU9 Earth MOID = 0.0224 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 10.07152 (2000.0) P Q
n 0.51083049 Peri. 175.16663 +0.94410416 +0.32944224
a 1.5498328 Node 165.58203 -0.30398880 +0.88371814
e 0.3869714 Incl. 2.67611 -0.12750745 +0.33243053
P 1.93 H 23.8 G 0.15 U 7