Power spectra of the zodiacal correction maps shown in Fig. 12. Black plus signs = 857 GHz; grey crosses = 545 GHz; cyan triangles = 353 GHz; orange diamonds = 217 GHz; blue circles = 143 GHz; and red squares = 100 GHz. For the “CMB channels” 100–353 GHz, even multipoles are shown with filled symbols, odd multipoles with empty symbols. The “even-odd” pattern is a consequence of the symmetry around the ecliptic plane – odd multipoles are almost absent, as they would indicate structure in the maps that was anti-symmetric about the ecliptic plane. The best-fit ΛCDM CMB temperature anisotropy spectrum using the “Planck+WP+highL+BAO” data combination from Planck Collaboration XVI (2014), is shown as the solid line roughly half-way down the plot, orders of magnitude above the zodiacal spectrum in the Planck CMB channels.