Orbital elements:
2011 YB29 Earth MOID = 0.0787 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 13.87092 (2000.0) P Q
n 0.23137249 Peri. 32.44658 -0.45418147 -0.88872391
a 2.6278157 Node 84.63318 +0.80344410 -0.43883372
e 0.5986024 Incl. 3.59115 +0.38496333 -0.13264528
P 4.26 H 23.7 G 0.15 U 8
The 49 - 110 metre wide asteroid 2011 YB29 will make a close pass (37.7 lunar distances, 0.0969 AU), travelling at 7.81 km/second, to the Earth-Moon system on the 4th January, 2012 @ 09:51 UT ±14:28.