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The nasmyth A&G Unit

• A&G unit design
  • Overview
  • Lightpath selection
  • Main beam from telescope to spectrograph
  • Beam from telescope to CCD autoguider
  • Return beam from slit to CCD autoguider
  • Return beam from slit to acquisition TV
  • Beam from calibration unit to spectrograph
  • Details of the 1994 upgrades to the UES A&G unit