Distribution of the number of observations (top) and duration (bottom) of the RV and G-band time series of the FPR sources. The red line indicates the number visibility periods used to derive the median RV published in DR3 (a single visibility period may contain multiple epochs, see Sect. 2.1). The blue and green lines indicate the number of measurements in the cleaned RV and G-band time series (top) or their duration (bottom).