The 350 - 790 metre wide asteroid 2009 BL2 will make a close pass (52.2 lunar distances, 0.1342 AU), travelling at 9.03 km/second, to the Earth-Moon system on the 7th May, 2013 @ 08:40 UT ±00:01.
Orbital elements: 2009 BL2 Earth MOID = 0.0944 AU Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC M 321.19291 (2000.0) P Q n 0.25512509 Peri. 52.70570 -0.91155047 +0.40663423 a 2.4620712 Node 151.14076 -0.40580711 -0.86572523 e 0.5783258 Incl. 7.26392 -0.06630488 -0.29183629 P 3.86 H 19.5 G 0.15 U 8