The 180 - 390 metre wide asteroid 2008 OX2 will make a close pass (55.2 lunar distances, 0.1418 AU), travelling at 14.98 km/second, to the Earth-Moon system on the 12th May, 2013 @ 23:54 UT ±00:01.
Orbital elements: 2008 OX2 PHA, Earth MOID = 0.0320 AU Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC M 186.34382 (2000.0) P Q n 0.91908022 Peri. 251.80696 -0.37297913 -0.92481513 a 1.0476923 Node 220.34747 +0.88898295 -0.33309090 e 0.6019824 Incl. 6.63957 +0.26569888 -0.18375918 P 1.07 H 20.1 G 0.15 U 5