The 80 - 180 metre wide asteroid 2011 HD63 will make a close pass (18.8 lunar distances, 0.0484 AU), travelling at 9.87 km/second, to the Earth-Moon system on the 6th September, 2011 @ 20:05 UT ±02:15.
Orbital elements:
2011 HD63 Earth MOID = 0.0333 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 296.84973 (2000.0) P Q
n 0.34062886 Peri. 135.83885 +0.66725378 +0.74480159
a 2.0305566 Node 176.00007 -0.70676812 +0.63590897
e 0.5123315 Incl. 5.39285 -0.23505577 +0.20221369
P 2.89 H 22.6 G 0.15 U 8