The 56 - 120 metre wide asteroid 2010 UA7 made a close pass (68.2 lunar distances, 0.1753 AU), travelling at 4.39 km/second, to the Earth-Moon system on the 31st October, 2010 @ 06:58 UT.
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Orbital elements: 2010 UA7 Earth MOID = 0.1727 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 331.92472 (2000.0) P Q n 0.26310304 Peri. 184.51193 +0.73734956 -0.67432526 a 2.4120454 Node 217.99063 +0.62178598 +0.70066424 e 0.5176177 Incl. 3.72722 +0.26400345 +0.23314174 P 3.75 H 23.3 G 0.15 U 9