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For a practical guide to the use of the gbdes codes for photometric and astrometric calibration, you probably want to start with the Starflat cookbook. The Glossary of terms is of general use.

Be sure to look at the README file for further information, especially on installation, prerequisites, and required environment variables during use.

Wiki pages giving details on steps in the process, in roughly the order in which they are needed during processing, are:

• Preparing catalogs
• Configuration files
• Specifying models
• WCSFoF
• PhotoFit and Specifying priors
• MagColor
• WCSFit
• Using your models