Orbits and Masses of the Satellites of the Dwarf Planet Haumea ( 2003 El 61 )

@inproceedings{Ragozzine2009OrbitsAM,
  title={Orbits and Masses of the Satellites of the Dwarf Planet Haumea ( 2003 El 61 )},
  author={Darin Ragozzine and Michael E. Brown},
  year={2009}
}
Using precise relative astrometry from the Hubble Space Telescope and the W. M. Keck Telescope, we have determined the orbits and masses of the two dynamically interacting satellites of the dwarf planet (136108) Haumea, formerly 2003 EL61. The orbital parameters of Hi’iaka, the outer, brighter satellite, match well the previously derived orbit. On timescales longer than a few weeks, no Keplerian orbit is sufficient to describe the motion of the inner, fainter satellite Namaka. Using a fully… CONTINUE READING

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