Orbital elements:
2015 BN509 PHA, Earth MOID = 0.0246 AU
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5 MPC
M 282.77522 (2000.0) P Q
n 0.97581311 Peri. 143.05942 -0.11474683 +0.99139812
a 1.0066804 Node 120.27191 -0.92796051 -0.08435420
e 0.5683461 Incl. 4.18006 -0.35457362 -0.10007068
P 1.01 H 20.7 G 0.15 U 6
The 180 - 400 metre wide asteroid 2015 BN509 will make a close pass (60.5 lunar distances, 0.1554 AU) travelling at 23.14 km/second, to the Earth-Moon system on the 4th February 2015 @ 01:50 UT ±00:01.
Orbital elements:
2015 BN509 PHA, Earth MOID = 0.0247 AU
Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 MPC
M 252.80291 (2000.0) P Q
n 0.97321839 Peri. 142.99230 -0.11511861 +0.99134267
a 1.0084689 Node 120.31694 -0.92800091 -0.08465154
e 0.5696366 Incl. 4.19490 -0.35434730 -0.10036845
P 1.01 H 20.8 G 0.15 U 8
