The 270 - 610 metre wide asteroid 2010 EF44 made a close pass (68.2 lunar distances, 0.1752 AU), travelling at 30.35 km/second, to the Earth-Moon system on the 8th 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 EF44 PHA, Earth MOID = 0.0142 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 354.04760 (2000.0) P Q n 0.28336014 Peri. 236.91940 +0.61184298 -0.78852920 a 2.2956740 Node 174.07981 +0.75929843 +0.60755317 e 0.8856896 Incl. 37.09409 -0.22161694 -0.09539834 P 3.48 H 19.8 G 0.15 U 9