The 19 - 43 metre wide asteroid 2009 WB52 will make a close pass (33.4 lunar distances, 0.0857 AU), travelling at 7.60 km/second, to the Earth-Moon system on the 24th November, 2009. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Orbital elements: 2009 WB52 Earth MOID = 0.0861 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 13.05377 (2000.0) P Q n 0.44296518 Peri. 16.09172 +0.28774370 -0.94147657 a 1.7043403 Node 57.49154 +0.85412874 +0.16934963 e 0.3748458 Incl. 12.01648 +0.43320626 +0.29144907 P 2.23 H 25.7 G 0.15 U 8