Orbital elements:
2012 BY1 Earth MOID = 0.0027 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 1.71024 (2000.0) P Q
n 0.40058376 Peri. 230.76874 -0.95291659 +0.30320782
a 1.8225264 Node 326.88111 -0.27598192 -0.87249910
e 0.6052294 Incl. 0.40593 -0.12563417 -0.38315837
P 2.46 H 26.0 G 0.15 U 9
The 17 - 39 metre wide asteroid 2012 BY1 will make a close pass (2.1 lunar distances, 0.0053 AU), travelling at 17.57 km/second, to the Earth-Moon system on the 24th January, 2012 @ 12:36 UT ±17:45.