The 110 - 250 metre wide asteroid 2011 EM51 will make a close pass (52.0 lunar distances, 0.1336 AU), travelling at 7.32 km/second, to the Earth-Moon system on the 12th June 2014 @ 23:19 UT ±00:01.
Orbital elements:
2011 EM51 PHA, Earth MOID = 0.0129 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 49.40884 (2000.0) P Q
n 0.64910012 Peri. 142.19315 +0.11364773 +0.99324829
a 1.3210774 Node 134.31909 -0.91928866 +0.11401516
e 0.3349022 Incl. 1.86476 -0.37681900 +0.02140968
P 1.52 H 21.9 G 0.15 U 3
Orbital elements: 2011 EM51 PHA, Earth MOID = 0.0128 AU Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC M 279.04804 (2000.0) P Q n 0.65291557 Peri. 141.98102 +0.11326410 +0.99329900 a 1.3159257 Node 134.50933 -0.91929283 +0.11354570 e 0.3315745 Incl. 1.84708 -0.37692431 +0.02155173 P 1.51 H 21.9 G 0.15 U 8