10.8.2 Properties of the input data

The list of input sources for LPV processing is a subset of the sources classified as LPV by the supervised classification processing (Section 10.3) that meet the following selection criteria based, among others, on $G$, $G_{\mathrm{RP}}$, $G_{\mathrm{BP}}$ photometry and on astrometry:

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  $N_G>12$, where $N_G$ is the number of data points in $G$ after outliers removal; this limit led to the exclusion of a few nearby and bright LPVs;

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  $N_{\mathrm{RP}}/N_G>0.8$, where $N_{\mathrm{RP}}$ is the number of data points in $G_{\mathrm{RP}}$ after outliers removal;

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  $G_{\mathrm{BP}}-G_{\mathrm{RP}}>0.5$ mag, computed using the median values of $G_{\mathrm{RP}}$ and $G_{\mathrm{BP}}$, to account for the typical colour range of LPVs and to exclude misclassified hot stars;

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  ${\mathrm{QR}}_5(G)>0.1$ mag, where ${\mathrm{QR}}_5$ is the 5–95 % trimmed range;

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  astrometry-based criteria: ruwe (renormalized unit weight error) must be available and the number visibility_periods_used of the astrometric solution must be greater than ten;

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  additional criteria are used involving classification probabilities as described in Lebzelter et al. (2023).