The 36 - 80 metre wide asteroid 2003 BN4 made a close pass (27.6 lunar distances, 0.0709 AU), travelling at 3.22 km/second, to the Earth-Moon system on the 4th February, 2013 @ 06:02 UT ±00:01.
Orbital elements:
2003 BN4 Earth MOID = 0.0700 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 267.94313 (2000.0) P Q
n 0.68939952 Peri. 192.87500 -0.77160257 -0.63141043
a 1.2690792 Node 307.69873 +0.59191550 -0.66829199
e 0.1706526 Incl. 5.59470 +0.23294960 -0.39332771
P 1.43 H 24.1 G 0.15 U 1