The Eris/Dysnomia system I: The orbit of Dysnomia

@article{Holler2021TheES,
  title={The Eris/Dysnomia system I: The orbit of Dysnomia},
  author={Bryan J. Holler and William M. Grundy and Marc W. Buie and Keith S. Noll},
  journal={Icarus},
  year={2021}
}
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New observations with the Keck Observatory and the Hubble Space Telescopes show that Dysnomia has a circular orbit with a radius of 37,350 � 140 (1-σ) kilometers and a 15.774 � 0.002 day orbital period around Eris, which agrees with expectations for a satellite formed out of the orbiting debris left from a giant impact.
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