The 44 - 98 metre wide asteroid 2009 YP will make a close pass (63.2 lunar distances, 0.1625 AU), travelling at 10.14 km/second, to the Earth-Moon system on the 21st December, 2009.
Orbital elements: 2009 YP Earth MOID = 0.0509 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 163.24041 (2000.0) P Q n 1.33377871 Peri. 202.55434 +0.31274540 +0.93384849 a 0.8173603 Node 86.02271 -0.84276381 +0.35709299 e 0.4270859 Incl. 10.01828 -0.43810897 -0.02028772 P 0.74 H 24.0 G 0.15 U 9