The 79 - 180 metre wide asteroid 2010 CB55 will make a close pass (18.5 lunar distances, 0.0476 AU), travelling at 13.78 km/second, to the Earth-Moon system on the 15th August, 2010 @ 17:09 UT. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
The 85 - 190 metre wide asteroid 2010 CB55 will make a close pass (72.6 lunar distances, 0.1865 AU), travelling at 13.41 km/second, to the Earth-Moon system on the 17th February, 2010.
Orbital elements: 2010 CB55 Earth MOID = 0.0466 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 232.55354 (2000.0) P Q n 0.81586804 Peri. 108.21643 -0.23881512 +0.93734373 a 1.1342865 Node 144.65772 -0.97049489 -0.23933755 e 0.1484928 Incl. 26.01113 +0.03327171 -0.25318821 P 1.21 H 22.5 G 0.15 U 7