The 160 - 360 metre wide asteroid 2015 ER will make a close pass (66.7 LD, 0.1713 AU) travelling at 23.13 km/second, to the Earth-Moon system on the 23rd March 2015 @ 00:17 UT ±00:01.
Orbital elements:
2015 ER Earth MOID = 0.0673 AU
Epoch 2015 June 27.0 TT = JDT 2457200.5 MPC
M 14.26585 (2000.0) P Q
n 0.28490935 Peri. 305.67831 +0.19297178 +0.97762292
a 2.2873445 Node 335.04984 -0.82383452 +0.11506378
e 0.8123799 Incl. 11.45262 -0.53297146 +0.17610722
P 3.46 H 21.2 G 0.15 U 7