The 36 - 81 metre wide asteroid 2010 AJ3 made a close pass (10.1 lunar distances, 0.0260 AU), travelling at 11.75 km/second, to the Earth-Moon system on the 7th January, 2010.
Orbital elements: 2010 AJ3 Earth MOID = 0.0118 AU Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC M 34.90277 (2000.0) P Q n 0.72417514 Peri. 291.33728 +0.71192061 -0.64662296 a 1.2281186 Node 110.07576 +0.70221052 +0.65084321 e 0.3084252 Incl. 16.95800 +0.00833303 +0.39784652 P 1.36 H 24.3 G 0.15 U 7