The 14 - 31 metre wide asteroid 2010 UZ6 made a close pass (13.5 lunar distances, 0.0348 AU), travelling at 8.17 km/second, to the Earth-Moon system on the 29th October, 2010 @ 12:34 UT.
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Orbital elements: 2010 UZ6 Earth MOID = 0.0336 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 336.77000 (2000.0) P Q n 0.24409534 Peri. 175.80220 +0.85374267 -0.51684644 a 2.5356914 Node 215.54894 +0.47450796 +0.82223259 e 0.5952971 Incl. 6.23977 +0.21439599 +0.23833449 P 4.04 H 26.4 G 0.15 U 8