Table 1.
Number of sources of a certain type, or the number of sources for which a given data product is available in Gaia DR3.
| Data product or source type | Number of sources | Comments |
|---|---|---|
| Total | 1 811 709 771 | |
| 5-parameter astrometry | 585 416 709 | |
| 6-parameter astrometry | 882 328 109 | |
| 2-parameter astrometry | 343 964 953 | |
| Gaia-CRF3 sources | 1 614 173 | |
| ICRF3 sources used for frame orientation | 2007 | |
| Gaia-CRF3 sources used for frame spin | 428 034 | |
| G-band | 1 806 254 432 | |
| GBP-band | 1 542 033 472 | |
| GRP-band | 1 554 997 939 | |
| Photometric time series | 11 754 237 | |
| Gaia Andromeda Photometric Survey | 1 257 319 | Photometric time series for all sources in 5.5° radius field around M31 |
| Radial velocity | 33 812 183 | GRVS < 14, 3100 < Teff < 14 500 K |
| GRVS-band | 32 232 187 | |
| vbroad | 3 524 677 | Spectral line broadening parameter |
| Radial velocity time series | 1898 | Sample of Cepheids and RR Lyrae |
| BP/RP mean spectra | 219 197 643 | G < 17.65 with small number of exceptions |
| RVS mean spectra | 999 645 | AFGK spectral types with SNR > 20, and sample of lower SNR spectra |
| Variable sources | 10 509 536 | See Table 2 |
| Object DSC classification | 1 590 760 469 | |
| Self-organised map of poorly classified sources | 1 | 30 × 30 map and prototype spectra |
| APs from mean BP/RP spectra | 470 759 263 | G < 19, see Table 2 |
| APs from mean RVS spectra | 5 591 594 | |
| Chemical abundances from mean RVS spectra | 2 513 593 | Up to 12 elements |
| DIBs from mean RVS spectra | 472 584 | |
| Non-single stars | 813 687 | Astrometric, spectroscopic, eclipsing, orbits, trends, see Table 2 |
| QSO candidates | 6 649 162 | High completeness, low purity |
| QSO redshifts | 6 375 063 | |
| QSO host galaxy detected | 64 498 | |
| QSO host galaxy profile | 15 867 | |
| Galaxy candidates | 4 842 342 | High completeness, low purity |
| Galaxy redshifts | 1 367 153 | |
| Galaxy profiles | 914 837 | |
| Solar System objects | 158 152 | Epoch astrometry and photometry |
| SSO reflectance spectra | 60 518 | |
| Total galactic extinction maps | 5 | HEALPix levels 6–9, and optimum HEALPix level |
| Science alerts | 2612 | Triggered in the period 25-07-2014 to 28-05-2017 |
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