The 10 - 22 metre wide asteroid 2015 HE1 will make a close pass (3.3 LD, 0.0085 AU) travelling at 14.41 km/second, to the Earth-Moon system on the 21st April 2015 @ 04:34 UT ±00:01.
Orbital elements:
2015 HE1 Earth MOID = 0.0024 AU
Epoch 2015 June 27.0 TT = JDT 2457200.5 MPC
M 8.14762 (2000.0) P Q
n 0.57953460 Peri. 79.22751 +0.36480669 +0.93052332
a 1.4247865 Node 212.22732 -0.87616608 +0.33135011
e 0.4932394 Incl. 3.47103 -0.31503822 +0.15599187
P 1.70 H 26.4 G 0.15 U 6