Orbital elements:
2012 BZ1 Earth MOID = 0.0344 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 359.63453 (2000.0) P Q
n 0.65922585 Peri. 107.87791 -0.51652899 +0.67433445
a 1.3075146 Node 118.89484 -0.81144114 -0.58227518
e 0.5929612 Incl. 37.06636 +0.27342472 -0.45412406
P 1.50 H 23.8 G 0.15 U 9
The 46 - 100 metre wide asteroid 2012 BZ1 will make a close pass (16.4 lunar distances, 0.0420 AU), travelling at 26.73 km/second, to the Earth-Moon system on the 20th January, 2012 @ 19:05 UT ±00:02.