Orbital elements:
2012 BS1 Earth MOID = 0.0022 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 6.27326 (2000.0) P Q
n 0.56968045 Peri. 56.72299 -0.99420512 -0.10623914
a 1.4411699 Node 117.17366 +0.09147250 -0.91626938
e 0.3838495 Incl. 1.05722 +0.05647095 -0.38621712
P 1.73 H 28.7 G 0.15 U 8
The 5 - 11 metre wide asteroid 2012 BS1 will make a close pass (3.1 lunar distances, 0.0081 AU), travelling at 8.98 km/second, to the Earth-Moon system on the 23rd January, 2012 @ 21:10 UT ±01:10.