The 250 - 570 metre wide asteroid 2015 NS13 will make a close pass (72.5 LD, 0.1862 AU) travelling at 12.15 km/second, to the Earth-Moon system on the 6th September 2015 @ 03:19 UT ±00:01.
The 22 - 49 metre wide asteroid 2013 NS13 will make a close pass (15.9 lunar distances, 0.0408 AU), travelling at 10.06 km/second, to the Earth-Moon system on the 18th July, 2013 @ 01:34 UT ±00:01.
Orbital elements:
2013 NS13 Earth MOID = 0.0102 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 317.92242 (2000.0) P Q
n 0.34933754 Peri. 217.78171 +0.88820695 +0.45540998
a 1.9966681 Node 115.02324 -0.40350608 +0.83644580
e 0.5124679 Incl. 3.84395 -0.21970722 +0.30489369
P 2.82 H 25.4 G 0.15 U 7