MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is a facility instrument designed for the 10.4m GTC telescope in La Palma (Spain).
Once you have a master traces file you cannot shift that file to be used for running the ModelMap recipe. Extract_offset is not a parameter of the ModelMap recipe.
Once you have a master traces file you cannot shift that file to be used for running the ModelMap recipe. Extract_offset is not a parameter of the ModelMap recipe.