Table 8
External catalogues cross-match results: number of objects compared with the number of matched sources, the fraction of distinct matched Gaia sources and the fraction of distinct matched external catalogue sources.
| Catalogue | Number of | Number of best | % of Gaia | % of External cat | Number of | ||
|---|---|---|---|---|---|---|---|
| sources | matchesa | sources matcheda | sources matcheda | neighbours | |||
| Pan-STARRS1 DR1 | 2 264 263 282 | 810 359 898 | 80.49b | 35.68 | 816 314 072 | ||
| GSC 2.3 | 945 592 683 | 870 899 123 | 51.44 | 80.96 | 884 748 168 | ||
| PPMXL | 910 468 688 | 716 220 357 | 42.31 | 73.50 | 757 738 601 | ||
| SDSS DR9 | 469 029 929 | 113 718 207 | 64.46b | 24.22 | 114 011 744 | ||
| URAT-1 | 228 276 482 | 188 071 510 | 27.32b | 82.32 | 188 071 646 | ||
| 2MASS | 470 992 970 | 450 688 227 | 26.62 | 92.91 | 451 193 296 | ||
| allWISE | 747 634 026 | 300 207 917 | 17.73 | 39.83 | 300 209 602 | ||
| APASS DR9 | 61 176 401 | 75 018 791 | 4.43 | 90.66 | 81 278 312 | ||
| Catalogue | Number of | Number of best | % of Gaia | % of External cat | Number of | ||
| sources | matchesc | sources matchedc | sources matchedc | neighbours | |||
| HIPPARCOS2 | 117 955 | 83 034 | 0.005 | 70.39 | 83 283 | ||
| Tycho-2 | 2 539 913 | 2 475 900 | 0.15 | 97.47 | 2 482 025 | ||
| RAVE 5 | 457 555d | 450 587 | 0.027 | 98.48 | 474 824 | ||
Notes. The number of sources in the neighbourhood tables is also listed. (a) Column “Number of best matches" includes the mates. This column and column “% of Gaia sources matched” indicate distinct matched Gaia sources. Column “% of External cat sources matched” indicates the fraction of distinct external catalogue sources that were matched. (b) The percentage of matched Gaia sources in this case takes into account the limited sky coverage of the external catalogue (see Fig. 3). (c) Column “Number of Best matches” does not include the mates, since for sparse catalogues a one-to-one best match is forced. Column “% of Gaia sources matched” indicates distinct Gaia sources. Column “% of External cat sources matched” indicates the fraction of distinct external catalogue sources that were matched. (d) RAVE contains multiple observation of the same source, which are identified with the same RAVEID and a different RAVE_OBS_ID. The numberreported in this table is the number of RAVE distinct sources.
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