The 77 - 170 metre wide asteroid 2010 GZ5 will make a close pass (21.8 lunar distances, 0.0560 AU), travelling at 19.57 km/second, to the Earth-Moon system on the 21st April, 2010.
Orbital elements: 2010 GZ5 Earth MOID = 0.0475 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 22.31667 (2000.0) P Q n 0.56921821 Peri. 123.13371 +0.63925724 +0.76889444 a 1.4419500 Node 186.64373 -0.73622564 +0.60731679 e 0.5914715 Incl. 6.10750 -0.22208554 +0.19991912 P 1.73 H 22.8 G 0.15 U 9