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Input Data

The information involved in a reduction session consists of user data and system tables. User data is a set of echelle images observed with the same instrument configuration, corresponding to a wavelength calibration image (WLC), a flat field image (FLAT) and astronomical objects. Optionally, this set will include the standard stars (STD) to be used in the absolute or relative flux calibration, and dark images (DARK).

Petra Nass