The 70m-160m wide asteroid 2007 UP6, made a close flyby of the Earth on the 23rd March, 2009 passing by around sixteen million, three hundred thousand km.
Orbital elements: 2007 UP6 Earth MOID = 0.0157 AU Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC M 172.13761 (2000.0) P Q n 1.03446137 Peri. 236.04054 -0.04887117 +0.99501790 a 0.9682627 Node 31.50435 -0.85274288 +0.00373156 e 0.0943008 Incl. 9.57211 -0.52003960 -0.09962655 P 0.95 H 23.0 G 0.15 U 2