The 71 - 160 metre wide asteroid 2010 NB made a close pass (18.3 lunar distances, 0.0470 AU), travelling at 14.45 km/second, to the Earth-Moon system on the 28th June, 2010 @ 04:23 UT.
Orbital elements: 2010 NB Earth MOID = 0.0461 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 309.46389 (2000.0) P Q n 0.93894315 Peri. 116.58102 +0.81764383 -0.44495174 a 1.0328641 Node 271.83700 +0.30477842 +0.87289648 e 0.3258185 Incl. 21.44034 +0.48843494 +0.20017412 P 1.05 H 22.9 G 0.15 U 8