Probing the Hill Sphere of (486958) 2014 MU69: HST FGS Observations during the 2017 July 17 Stellar Occultation

@article{Kammer2018ProbingTH,
  title={Probing the Hill Sphere of (486958) 2014 MU69: HST FGS Observations during the 2017 July 17 Stellar Occultation},
  author={J. Kammer and T. Becker and K. Retherford and S. Stern and C. Olkin and M. Buie and J. Spencer and A. Bosh and L. Wasserman},
  journal={The Astronomical Journal},
  year={2018},
  volume={156},
  pages={72}
}
We observed the 2017 July 17 stellar occultation of HD 168233 by the Kuiper Belt Object (486958) 2014 MU69, the close flyby target of the extended New Horizons mission. Rather than capture a solid body occultation by the KBO itself, our program aimed to constrain the opacity of rings, moons, or other debris in the nearby environment. We used the Hubble Space Telescope Fine Guidance Sensors (HST FGS) instrument in TRANS F583W mode to collect 40 Hz time resolution photometry of the stellar… Expand
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