CMB-only bandpowers, marginalized over astrophysical foregrounds.
These spectra are released for plotting purposes and do not include the full covariance.
Planck
Planck 2018 results. VI. Cosmological parameters, Planck Collaboration, astro-ph
Unbinned measurements available from the Planck Legacy archive are plotted at l < 30, and
binned measurements provided to LAMBDA by the Planck team are plotted at higher l.