Planck 2018 results
Free Access

Fig. 8.


Direction (top) and amplitude (bottom) of the solar dipole determined from each of the LFI detectors. Uncertainties in direction are given by 95% ellipses around symbols, colour-coded for frequency (70 GHz black or unfilled, 44 GHz green, and 30 GHz red). The four discrepant points are at 30 GHz, where we expect foregrounds affect dipole estimation. Amplitude uncertainties are dominated by the systematic effects of gain uncertainties. The grey band in the bottom panel shows the WMAP dipole amplitude for comparison.

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