Contents

• Introduction
  • Contents of this User Manual and References
  • Abbreviations and Acronyms
  
  
• Instrument Characteristics
  • Characteristics of the Echelle Spectrograph
  • The HDS System
  • Performance of HDS
  • Pre-slit Unit
  • Control System
  • Light Monitor
  
  
• Preparation for Observations
  • How to Determine HDS Setup Parameters
    • Echelle Grating
    • Cross-Dispersing Grating
    • Slit and Image Slicers
    • Filter
    • Detectors
    • Rotation of Detector Unit
  • Determination of Spectrum Format
  • Standard Setup of Spectrograph
  • Estimation of Exposure Time
  • Elevation and Atmospheric Dispersion
  • I$_{2}$ Cell and Light Monitor
  • Check List
  
  
• Observing
  • Setup of Spectrograph
  • Target Acquisition and Guiding
  • Data Acquisition
  • Observation Procedure
  • Calibration Data
  • I$_{2}$ Cell and Light Monitor
  • Characteristics of the Data
  • Data Access
  • Data Reduction
  
  
• Appendices
  • Echelle Spectral Format
  • Example of Observation Procedure
  • Example of FITS Headers and Tables