The 31 - 69 metre wide asteroid 2011 BF40 will make a close pass (18.5 lunar distances, 0.0476 AU), travelling at 19.39 km/second, to the Earth-Moon system on the 9th February, 2011 @ 08:55 UT ±02:16.
Orbital elements: 2011 BF40 Earth MOID = 0.0488 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 352.86448 (2000.0) P Q n 0.18404511 Peri. 254.26917 -0.95041235 +0.29314036 a 3.0609285 Node 302.67243 -0.21647264 -0.86333449 e 0.7253878 Incl. 7.08677 -0.22328446 -0.41075818 P 5.36 H 24.4 G 0.15 U 7