Discovery of a Low-Eccentricity, High-Inclination Kuiper Belt Object at 58 AU

@article{Allen2006DiscoveryOA,
  title={Discovery of a Low-Eccentricity, High-Inclination Kuiper Belt Object at 58 AU},
  author={Rhiannon Lynne Allen and Brett J. Gladman and JJ. Kavelaars and J. M. Petit and Joel Wm. Parker and Philip D. Nicholson},
  journal={The Astrophysical Journal Letters},
  year={2006},
  volume={640},
  pages={L83 - L86}
}
We report the discovery of the first trans-Neptunian object, designated 2004 XR190, with a low-eccentricity orbit beyond the 2 : 1 mean motion resonance. Fitting an orbit to 23 astrometric observations spread out over 12 months yields an orbit of a = 57.2 ± 0.4, e = 0.08 ± 0.04, and i = 46.°6. All viable orbits have perihelia distances q > 49 AU. The very high orbital inclination of this extended scattered disk object might be explained by several models, but its existence again points to a… 
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