The 120 - 270 metre wide asteroid 2013 NP8 will make a close pass (55.1 lunar distances, 0.1416 AU), travelling at 8.69 km/second, to the Earth-Moon system on the 21st July, 2013 @ 09:26 UT ±00:05.
Orbital elements:
2013 NP8 Earth MOID = 0.1263 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 312.78038 (2000.0) P Q
n 0.38660706 Peri. 251.45718 +0.87223669 +0.46933432
a 1.8661915 Node 80.35248 -0.37936436 +0.82678505
e 0.4360443 Incl. 8.02206 -0.30868406 +0.31008349
P 2.55 H 21.8 G 0.15 U 7