Orbital elements:
2011 YE29 Earth MOID = 0.0123 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 78.91981 (2000.0) P Q
n 0.92554365 Peri. 170.20466 +0.01696129 -0.90824977
a 1.0428090 Node 277.92091 +0.88641504 +0.20711262
e 0.0462880 Incl. 24.96799 +0.46258047 -0.36357491
P 1.06 H 24.6 G 0.15 U 7
The 33 - 75 metre wide asteroid 2011 YE29 made a close pass (7.0 lunar distances, 0.0180 AU), travelling at 13.18 km/second, to the Earth-Moon system on the 29th December, 2011 @ 18:14 UT ±00:01.