The 6 - 14 metre wide asteroid 2013 KA made a close pass (2.1 lunar distances, 0.0053 AU), travelling at 5.18 km/second, to the Earth-Moon system on the 17th May, 2013 @ 12:39 UT ±00:01.
Orbital elements:
2013 KA Earth MOID = 0.0037 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 347.26709 (2000.0) P Q
n 0.57294094 Peri. 353.46991 -0.66333706 +0.74468549
a 1.4356971 Node 234.94628 -0.68243552 -0.64238785
e 0.2943496 Incl. 5.16333 -0.30702722 -0.18105624
P 1.72 H 28.0 G 0.15 U 6