The 90 - 200 metre wide asteroid 2013 NW will make a close pass (59.4 lunar distances, 0.1526 AU), travelling at 11.11 km/second, to the Earth-Moon system on the 9th September, 2013 @ 22:20 UT ±00:12.
Orbital elements:
2013 NW Earth MOID = 0.0497 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 331.53774 (2000.0) P Q
n 0.19398025 Peri. 113.41453 +0.98519671 +0.14182615
a 2.9555005 Node 238.55731 -0.16652836 +0.92511606
e 0.6942258 Incl. 6.48071 +0.04069096 +0.35220110
P 5.08 H 22.4 G 0.15 U 7