The 32 - 72 metre wide asteroid 2010 GC35 made a close pass (38.8 lunar distances, 0.0998 AU), travelling at 4.87 km/second, to the Earth-Moon system on the 6th April, 2010.
Orbital elements: 2010 GC35 Earth MOID = 0.0586 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 75.12875 (2000.0) P Q n 0.73768464 Peri. 1.94751 -0.95457377 +0.29534376 a 1.2130784 Node 195.40778 -0.27535734 -0.92500117 e 0.1272390 Incl. 8.55195 -0.11387387 -0.23905000 P 1.34 H 24.6 G 0.15 U 8