The 53 - 120 metre wide asteroid 2015 DO223 will make a close pass (10.7 LD, 0.0276 AU) travelling at 19.06 km/second, to the Earth-Moon system on the 21st March 2015 @ 03:41 UT ±00:01.
Orbital elements:
2015 DO223 Earth MOID = 0.0274 AU
Epoch 2015 June 27.0 TT = JDT 2457200.5 MPC
M 15.30814 (2000.0) P Q
n 0.27710788 Peri. 239.57681 -0.31271660 +0.94948027
a 2.3300762 Node 12.28549 -0.82341939 -0.25714792
e 0.6960954 Incl. 7.11973 -0.47348583 -0.17989484
P 3.56 H 23.2 G 0.15 U 6