The 81 - 180 metre wide asteroid 2012 QG49 will make a close pass (32.6 lunar distances, 0.0839 AU), travelling at 9.44 km/second, to the Earth-Moon system on the 19th September, 2012 @ 14:04 UT ±16:54.
Orbital elements:
2012 QG49 Earth MOID = 0.0674 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 321.94080 (2000.0) P Q
n 0.75590390 Peri. 150.15586 +0.14435696 -0.98628339
a 1.1935071 Node 291.44474 +0.89000063 +0.16476597
e 0.3685357 Incl. 4.93304 +0.43250427 -0.00986106
P 1.30 H 22.6 G 0.15 U 9