The 20 - 44 metre wide asteroid 2011 ES4 will make a close pass (69.8 lunar distances, 0.1792 AU), travelling at 12.96 km/second, to the Earth-Moon system on the 10th September, 2012 @ 20:13 UT ±02:15.
2011 ES4 Earth MOID = 0.0001 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 274.96824 (2000.0) P Q n 0.86656753 Peri. 273.50620 -0.28173411 +0.95928064 a 1.0896017 Node 340.09445 -0.85513242 -0.26056646 e 0.2426418 Incl. 3.39510 -0.43517172 -0.10902190 P 1.14 H 25.6 G 0.15 U 8
The 20 - 45 metre wide asteroid 2011 ES4 will make a close pass (11.2 lunar distances, 0.0287 AU), travelling at 6.97 km/second, to the Earth-Moon system on the 13th March, 2011 @ 10:08 UT ±02:27.