1999 XS35

1999 XS35 is an asteroid discovered in 1999 having a comet-like orbit. Its semi-major axis is 17.915 AU. Its orbital eccentricity is, however, 0.948, which means that at the perihelion 1999 XS35 comes as close as 1.5 AU to the Sun, while at the aphelion it reaches almost the orbit of Neptune. 1999 XS35 is a small object with the absolute magnitude of 17.2, which implies the size of about 1 km.[1]

References

  1. ^ Fernández, Yanga R. (2010). "Asteroids with Comet-Like Orbits: Elements and Positions". http://www.physics.ucf.edu/~yfernandez/lowtj.html. Retrieved 30 May 2010.