Green Bank Telescope: Overview and analysis of metrology systems and pointing performance

@article{White2021GreenBT,
  title={Green Bank Telescope: Overview and analysis of metrology systems and pointing performance},
  author={Ellie White and Frank D. Ghigo and Richard M. Prestage and David T. Frayer and Ronald J. Maddalena and Patrick T. Wallace and Joseph J. Brandt and Dennis Egan and John D. Nelson and Jason Ray},
  journal={Astronomy \& Astrophysics},
  year={2021}
}
With a 100m × 110m o ff -axis paraboloid dish, the Green Bank Telescope (GBT) is the largest fully steerable radio telescope on Earth. A major challenge facing large ground-based radio telescopes is achieving su ffi cient pointing accuracy for observing at high frequencies, up to 116GHz in the case of the GBT. Accurate pointing requires the ability to blindly acquire source locations and perform ad hoc corrections determined by observing nearby calibrator sources in order to obtain a starting… 

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