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gaia data release 3 documentation

6.4 Processing steps

6.4.7 Combine template

The astrophysical parameters are set independently for each transit of a star. If they are determined as in Section 6.4.5, they may be different for different transits. The Combine template workflow is in charge of collecting all the single-transit information for each star and combining them to produce a single set of astrophysical parameters which is associated with the star in all later processing steps. The corresponding template parameters are published as rv_template_teff, rv_template_logg and rv_template_fe_h.