The 6 - 13 metre wide asteroid 2014 SN142 made a close pass (1.1 lunar distances, 0.0029 AU), travelling at 13.30 km/second, to the Earth-Moon system on the 23rd September 2014 @ 05:27 UT ±00:01.
Orbital elements:
2014 SN142 Earth MOID = 0.0029 AU
Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 MPC
M 12.91008 (2000.0) P Q
n 0.36022660 Peri. 241.59554 +0.51826190 -0.85521762
a 1.9562253 Node 177.18426 +0.80277804 +0.48538019
e 0.5772196 Incl. 3.17924 +0.29487629 +0.18168350
P 2.74 H 28.2 G 0.15 U 5