The 22 - 48 metre wide asteroid 2011 BY11 will make a close pass (14.1 lunar distances, 0.0362 AU), travelling at 12.37 km/second, to the Earth-Moon system on the 30th January, 2011 @ 17:23 UT ±00:01.
Orbital elements: 2011 BY11 Earth MOID = 0.0374 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 339.76159 (2000.0) P Q n 0.60196520 Peri. 54.56478 -0.96781460 +0.04089114 a 1.3891691 Node 126.47261 -0.09497513 -0.97309467 e 0.3359158 Incl. 17.98702 +0.23305497 -0.22674804 P 1.64 H 25.3 G 0.15 U 9