The 23 - 52 metre wide asteroid 2012 SZ2 will make a close pass (59.2 LD, 0.1521 AU) travelling at 13.71 km/second, to the Earth-Moon system on the 10th September 2015 @ 10:57 UT ±13:48.
Orbital elements:
2012 SZ2 Earth MOID = 0.0164 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 338.05216 (2000.0) P Q
n 0.66259090 Peri. 231.92172 +0.68317666 -0.72975262
a 1.3030840 Node 174.73393 +0.72755379 +0.67700480
e 0.2801387 Incl. 17.12975 +0.06273072 +0.09552809
P 1.49 H 25.2 G 0.15 U 6
The 24 - 54 metre wide asteroid 2012 SZ2 will make a close pass (8.2 lunar distances, 0.0211 AU), travelling at 10.72 km/second, to the Earth-Moon system on the 19th September, 2012 @ 20:00 UT ±00:01.