The 32 - 72 metre wide asteroid 2011 EM11 will make a close pass (74.7 lunar distances, 0.1919 AU), travelling at 8.09 km/second, to the Earth-Moon system on the 2nd April, 2013 @ 13:56 UT ±1 day 00:59.
The 34 - 75 metre wide asteroid 2011 EM11 will make a close pass (26.1 lunar distances, 0.0671 AU), travelling at 6.53 km/second, to the Earth-Moon system on the 12th March, 2011 @ 03:24 UT ±03:28.
Orbital elements: 2011 EM11 Earth MOID = 0.0667 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 340.73709 (2000.0) P Q n 0.48659905 Peri. 14.06344 -0.99906162 -0.01011769 a 1.6008669 Node 165.16305 -0.00057607 -0.96914192 e 0.3409135 Incl. 9.46586 +0.04330764 -0.24629569 P 2.03 H 24.5 G 0.15 U 8