SMR-002 - Gaia
Summary: When trying to build a large set of ground based SpectroPhotometric Standard Stars (SPSS) for calibrating Gaia BP/RP spectra and G-Band images to a few % in absolute flux, it is essential to maintain the maximum homogeneity in data quality, acquisition and treatment. This IFP Protocol concerns the calibration frames stability monitoring of all instruments used in the ground-based campaigns aimed at building the grid of Gaia SPSS. The result of this protocol provide clear guidelines for our observations and data reduction strategies.
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