Orbital elements: 2010 OA1 Earth MOID = 0.0023 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 350.40695 (2000.0) P Q n 0.42482771 Peri. 209.22104 +0.85045725 +0.51254250 a 1.7525113 Node 119.47327 -0.45236214 +0.82746215 e 0.4409650 Incl. 7.81762 -0.26849760 +0.22936123 P 2.32 H 23.3 G 0.15 U 7
The 64 - 140 metre wide asteroid 2010 OA1 made a close pass (9.2 lunar distances, 0.0236 AU), travelling at 9.21 km/second, to the Earth-Moon system on the 18th July, 2010 @ 16:14 UT. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).