Table 1.
Description of number of objects included per survey.
| Survey | Nstars | Nunique stars | Ncommon Gaia | R |
|---|---|---|---|---|
| APOGEE DR16 | 473 306 | 437 303 | 467 155 | 22 500 |
| GALAH DR2 | 342 682 | 342 682 | 342 088 | 28 000 |
| GES DR3 | 25 533 | 25 502 | 25 440 | 16–45 000 |
| LAMOST DR5 | 5 348 712 | 4 150 974 | 3 943 355 | 1800 |
| RAVE DR6 | 518 387 | 451 783 | 517 095 | 7500 |
| Gaia DR2 | 7 224 632 | 7 224 632 | – | 11 500 |
Notes. Nstars: number of entries, Nunique stars: number of unique star entries, Ncommon Gaia: number of stars in common with Gaia DR2, and R is the resolution. The number of unique stars is derived after the analysis in Sect. 3 to identify duplicated sources and is different from the ones presented in the respectively survey releases.
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