The 20 - 45 metre wide asteroid 2009 WG106 made a close pass (4.3 lunar distances, 0.0109 AU), travelling at 5.11 km/second, to the Earth-Moon system on the 22nd November, 2009.
Orbital elements: 2009 WG106 Earth MOID = 0.0068 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 33.98585 (2000.0) P Q n 0.58579270 Peri. 149.34843 +0.73885136 -0.67267723 a 1.4146209 Node 252.98152 +0.60945789 +0.69240547 e 0.3128317 Incl. 2.40049 +0.28750608 +0.26092147 P 1.68 H 25.6 G 0.15 U 6