Solar dipole directions and amplitudes for the four component-separation methods using different symbols of size, increasing with sky fraction. The colours refer to frequencies for the 2018 release, while the WMAP measurement (see text) is the black dotted plus sign and the Planck 2015 measurement is the blue one. Grey boxes give the absolute bias uncertainties. At 545 GHz, several points for the largest sky fraction fall outside of the plotted range. The HFI 2018 Solar dipole determination is shown in direction by the black dot and in amplitude by the black horizontal line.