The 81 - 180 metre wide asteroid 2010 PD57 will make a close pass (77.5 lunar distances, 0.1992 AU), travelling at 5.08 km/second, to the Earth-Moon system on the 6th September, 2010 @ 18:28 UT. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Orbital elements: 2010 PD57 Earth MOID = 0.1999 AU Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC M 344.47962 (2000.0) P Q n 0.27635355 Peri. 46.34073 +0.98940114 +0.10420951 a 2.3343144 Node 307.42050 -0.13962902 +0.87395018 e 0.4929198 Incl. 7.31514 +0.03986375 +0.47471198 P 3.57 H 22.6 G 0.15 U 7