The 49 - 110 metre wide asteroid 2009 RH will make a close pass (12.5 Lunar Distances, 0.0321 AU), travelling at 7.56 km/s, to the Earth-Moon system on the 29th September, 2009. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Orbital elements: 2009 RH Earth MOID = 0.0187 AU Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC M 256.24701 (2000.0) P Q n 0.67696895 Peri. 263.34045 +0.35345896 -0.93532575 a 1.2845674 Node 165.93139 +0.88113574 +0.32741882 e 0.3338059 Incl. 3.59632 +0.31411236 +0.13402482 P 1.46 H 23.6 G 0.15 U 9