The 130 - 290 metre wide asteroid 2010 CF55 will make a close pass (76.2 lunar distances, 0.1959 AU), travelling at 19.74 km/second, to the Earth-Moon system on the 18th March, 2010. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Orbital elements: 2010 CF55 PHA, Earth MOID = 0.0500 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 304.36792 (2000.0) P Q n 0.45274214 Peri. 322.54457 +0.04939290 +0.99691775 a 1.6797144 Node 310.20160 -0.89597428 +0.01725852 e 0.7117010 Incl. 4.57739 -0.44135069 +0.07653204 P 2.18 H 22.0 G 0.15 U 9