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5 Data Reductions

Complete calibration and extraction of coude CCD data may be done at the telescope if desired using the packages available on the SPARC station. Be sure to record the raw data on tape before using any of the CCDPROC routines as they alter the data in place. After initial debiasing, flat-fielding and trimming, the spectra may be extracted and wavelength calibrated either step by step, or automatically using the IRAF tasks doslit and dofibers. The manuals A User's Guide to Reducing Slit Spectra with IRAF, and A User's Guide to Reducing Echelle Spectra with IRAF, may be consulted as illustrations of procedures.

A variety of tape formats are available for taking spectra away from Kitt Peak. Please discuss your requirements with an instrument support person before or during your run.