This Appendix describes the reduction of Echelle spectra. It describes the steps required to produce one-dimensional spectra from two-dimensional images. Operating procedures are described in detail so that this manual can be used as a guide by users without MIDAS experience.
A tutorial example is available in the system, the user is recommended to run it (SET/CONTEXT echelle, then TUTORIAL/ECHELLE) while reading the relevant parts of this document. The algorithms related to the reduction method are described in Chapter 7.