The 47 - 110 metre wide asteroid 2010 GD6 made a close pass (6.8 lunar distances, 0.0176 AU), travelling at 15.68 km/second, to the Earth-Moon system on the 31st March, 2010.
Orbital elements: 2010 GD6 Earth MOID = 0.0061 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 229.50613 (2000.0) P Q n 1.05651906 Peri. 237.52532 +0.39476007 -0.91412610 a 0.9547386 Node 190.53595 +0.91630981 +0.38432498 e 0.1162202 Incl. 30.35336 -0.06738556 -0.12910374 P 0.93 H 23.8 G 0.15 U 9