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Table A.2
Coefficients of the polynomials and the standard deviations (σ) of the residuals of the fittings for sources observed in Gaia DR2.
| HIPPARCOS relationships | |||||
| B − V |  |
 |
σ | ||
| G − Hp | −0.03704 | −0.3915 | 0.01855 | −0.03239 | 0.02502 |
| V − I |  |
 |
σ | ||
| G − Hp | −0.01259 | −0.3336 | −0.1171 | 0.02244 | 0.09610 |
| GBP − Hp | −0.01205 | 0.1105 | 0.06624 | ||
| GRP − Hp | −0.00055 | −1.203 | 0.1078 | 0.1089 | |
| GBP − GRP | −0.01146 | 1.315 | −0.1103 | 0.09390 | |
| GBP − GRP |  |
 |
σ | ||
| G − Hp | −0.01968 | −0.2344 | −0.1200 | 0.01490 | 0.06875 |
| Tycho-2 relationships | |||||
| BT − VT |  |
 |
σ | ||
| G − VT | −0.02051 | −0.2706 | 0.03394 | −0.05937 | 0.06373 |
| GBP − VT | −0.006739 | 0.2758 | −0.1350 | 0.01098 | 0.04415 |
| GRP − VT | −0.03757 | −1.188 | 0.4871 | −0.1729 | 0.09637 |
| GBP − GRP | 0.03147 | 1.456 | -0.6043 | 0.1750 | 0.07024 |
| GBP − GRP |  |
 |
σ | ||
| G − VT | −0.01842 | −0.06629 | −0.2346 | 0.02157 | 0.05501 |
| G − BT | −0.02441 | −0.4899 | −0.9740 | 0.2496 | 0.07293 |
| SDSS relationships | |||||
| g − i |  |
 |
σ | ||
| G − g | −0.074189 | −0.51409 | −0.080607 | 0.0016001 | 0.046848 |
| g − r |  |
 |
σ | ||
| G − g | −0.038025 | −0.76988 | −0.1931 | 0.0060376 | 0.065837 |
| r − i |  |
 |
σ | ||
| G − r | 0.0014891 | 0.36291 | −0.81282 | 0.14711 | 0.043634 |
| G − i | −0.007407 | 1.4337 | −0.95312 | 0.22049 | 0.041165 |
| GBP − r | 0.1463 | 1.7244 | −1.1912 | 0.22004 | 0.059674 |
| GRP − r | −0.29869 | −1.1303 | 0.039156 | ||
| GBP − GRP | 0.47108 | 2.7001 | −0.97174 | 0.14601 | 0.067573 |
| GBP − GRP |  |
 |
|||
| G − r | −0.12879 | 0.24662 | −0.027464 | −0.049465 | 0.066739 |
| G − i | −0.29676 | 0.64728 | −0.10141 | 0.098957 | |
| G − g | 0.13518 | −0.46245 | −0.25171 | 0.021349 | 0.16497 |
| Johnson-Cousins relationships | |||||
| V − I |  |
 |
σ | ||
| G − V | −0.01746 | 0.008092 | −0.2810 | 0.03655 | 0.04670 |
| GBP − V | −0.05204 | 0.4830 | −0.2001 | 0.02186 | 0.04483 |
| GRP − V | 0.0002428 | −0.8675 | −0.02866 | 0.04474 | |
| GBP − GRP | −0.04212 | 1.286 | −0.09494 | 0.02366 | |
| V − R |  |
 |
σ | ||
| G − V | −0.02269 | 0.01784 | −1.016 | 0.2225 | 0.04895 |
| B − V |  |
 |
σ | ||
| G − V | −0.02907 | −0.02385 | −0.2297 | −0.001768 | 0.06285 |
| GBP − GRP |  |
σ | |||
| G − V | −0.01760 | −0.006860 | −0.1732 | 0.045858 | |
| G − R | −0.003226 | 0.3833 | −0.1345 | 0.04840 | |
| G − I | 0.02085 | 0.7419 | −0.09631 | 0.04956 | |
| 2MASS relationships | |||||
| H − KS |  |
σ | |||
| G − KS | 0.6613 | 12.073 | −1.359 | 0.3692 | |
| GBP − KS | 0.8174 | 14.66 | 2.711 | 0.4839 | |
| GRP − KS | 0.3560 | 9.287 | −1.721 | 0.2744 | |
| GBP − GRP | 0.4238 | 6.098 | 1.991 | 0.2144 | |
| GBP − GRP |  |
σ | |||
| G − KS | −0.1885 | 2.092 | −0.1345 | 0.08281 | |
| G − H | −0.1621 | 1.968 | −0.1328 | 0.07103 | |
| G − J | −0.01883 | 1.394 | −0.07893 | 0.05246 | |
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