The 38 m - 85 metre wide asteroid 2011 ER74 made a close pass (16.8 lunar distances, 0.0432 AU), travelling at 7.82 km/second, to the Earth-Moon system on the 12th March, 2011 @ 13:38 UT ±01:11.
Orbital elements: 2011 ER74 Earth MOID = 0.0381 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 164.08558 (2000.0) P Q n 1.28311758 Peri. 165.05356 +0.90369438 +0.42635853 a 0.8387356 Node 169.44661 -0.41161615 +0.89041309 e 0.2492391 Incl. 12.43293 -0.11793481 +0.15932023 P 0.77 H 24.2 G 0.15 U 8