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Observing procedure

By now you should have set everything up and be ready to go. This is how you carry out the observations.

• At the start of the night
• Direct imaging
• Target acquisition with a multiaperture mask
  • Standard technique
  • Further refinements to acquisition
• Target acquisition with a longslit
• Calibration exposures
  • Flatfielding
  • Wavelength calibration
  • Flux calibration