The 77 - 170 metre wide asteroid 2011 WV4 will make a close pass (25.6 LD, 0.0658 AU) travelling at 11.05 km/second, to the Earth-Moon system on the 22nd May 2015 @ 01:39 UT ±00:01.
Orbital elements:
2011 WV4 Earth MOID = 0.0274 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 353.06419 (2000.0) P Q
n 0.75957502 Peri. 277.96141 +0.80050418 +0.58047619
a 1.1896584 Node 46.70491 -0.43667494 +0.73534201
e 0.2997486 Incl. 11.82362 -0.41049732 +0.34974208
P 1.30 H 22.6 G 0.15 U 8