Table 1
Characteristics of the Gaia-CRF3 sources.
| Type | Number | G | GBP − GRP | νeff | RUWE | σμα* | σμδ |
|---|---|---|---|---|---|---|---|
| of solution | of sources | [mag] | [mag] | [μm−1] | [ μas yr−1] | [ μas yr−1] | |
| Five-parameter | 1 215 942 | 19.92 | 0.64 | 1.589 | 1.013 | 457 | 423 |
| Six-parameter | 398 231 | 20.46 | 0.92 | – | 1.044 | 892 | 832 |
| All | 1 614 173 | 20.06 | 0.68 | – | 1.019 | 531 | 493 |
Notes. Columns 3–8 give median values of the G magnitude, the BP−RP colour index, the effective wavenumber νeff (see footnote xxxxx; only available for the five-parameter solutions), the astrometric quality indicator RUWE (seefootnote xxxxxxxx), and the uncertainties of the equatorial proper motion components in α and δ. The last line (‘All’) is for the whole set of Gaia-CRF3 sources. In this study only the sources with five-parameters solutions are used.
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