  Here, we explore some peculiar orbital features of the recently discovered
asteroid A/2017 U1, which is a clear outlier when considering the average value
of the eccentricity of known hyperbolic comets. As for the orientation of its
orbit in space, the orbital plane of A/2017 U1 seems to be away from any
obvious clusters present for this population. The orbital nodes of A/2017 U1
are well away from the paths of the planets of the Solar System and the Sun.
All these orbital properties appear to confirm A/2017 U1 as the first known
interstellar asteroid.
