The 15 - 35 metre wide asteroid 2009 HK73 made a close pass (1.2 Lunar Distances, 0.0031 AU), travelling at 7.56 km/s, to the Earth-Moon system on the 27th April 2009.
Orbital elements: 2009 HK73 Earth MOID = 0.0014 AU Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC M 71.91908 (2000.0) P Q n 0.70920504 Peri. 300.28857 -0.91385559 -0.40191967 a 1.2453407 Node 216.10251 +0.39799935 -0.85853613 e 0.2825796 Incl. 5.61901 +0.08040201 -0.31839645 P 1.39 H 26.2 G 0.15 U 7