The 130 - 280 metre wide asteroid 2015 BY310 will make a close pass (34.1 LD, 0.0876 AU) travelling at 6.67 km/second, to the Earth-Moon system on the 21st April 2015 @ 14:52 UT ±00:01.
Orbital elements:
2015 BY310 PHA, Earth MOID = 0.0236 AU
Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 MPC
M 299.10402 (2000.0) P Q
n 0.49195346 Peri. 229.21845 -0.94753311 +0.31662347
a 1.5892298 Node 329.16597 -0.26134951 -0.84648828
e 0.4022141 Incl. 4.91771 -0.18405827 -0.42802707
P 2.00 H 21.6 G 0.15 U 8