Local ionization production frequencies at comet 67P during the Rosetta mission (2014–2016). The contribution of SWCX (blue line), SWI (red lines), PI or (hν, 24 h average, gray line), and EI (or e⁻, 24 h average, pink circles) to the local production of ions is displayed. The black continuous lines are the 24 h averaged SWCX and SWI frequencies. When Rosetta was inside the solar wind ion cavity (May–December 2015), no solar wind fluxes could be routinely measured.