The 100 - 230 metre wide asteroid 2011 ED21 will make a close pass (27.3 lunar distances, 0.0700 AU), travelling at 8.62 km/second, to the Earth-Moon system on the 29th March, 2011 @ 05:53 UT ±01:44.
Orbital elements: 2011 ED41 Earth MOID = 0.0473 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 293.95166 (2000.0) P Q n 0.70110959 Peri. 191.91470 -0.42722324 +0.90220961 a 1.2549086 Node 52.82258 -0.82332264 -0.36116540 e 0.2737329 Incl. 4.25703 -0.37365777 -0.23574852 P 1.41 H 22.2 G 0.15 U 8