The 47 - 100 metre wide asteroid 2009 MG1 made a close pass (16.5 Lunar Distances, 0.0424 AU), travelling at 18.21 km/s, to the Earth-Moon system on the 14th June, 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 MG1 Earth MOID = 0.0157 AU Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC M 15.23136 (2000.0) P Q n 0.31050032 Peri. 102.10905 -0.97766417 +0.17065709 a 2.1598720 Node 87.80918 -0.20603507 -0.89347045 e 0.6535287 Incl. 7.05164 +0.04150085 -0.41543556 P 3.17 H 23.8 G 0.15 U 8