The 30 - 70 metre wide asteroid 2004 BL58 will make a close pass (4.7 Lunar Distances, 0.0122 AU) to the Earth-Moon system on the 11th February 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 BL58 Earth MOID = 0.0068 AU Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC M 311.90700 (2000.0) P Q n 0.44623603 Peri. 228.03538 -0.98777055 +0.14339801 a 1.6960017 Node 320.09586 -0.09916202 -0.88073332 e 0.4688729 Incl. 5.47504 -0.12031720 -0.45138214 P 2.21 H 24.5 G 0.15 U 8