Fig. 5
Current estimates of the end-of-mission uncertainties in the measurements of the G apparent magnitude (black line) and the parallax (dashed and dotted lines) as a function of the G apparent magnitude. The dashed line corresponds to (V − I) = 4 and the dotted line to (V − I) = 7.5, a plausible range for the V − I colour index according to the model libraries.
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