Spectral energy distribution resulting from Fermi-LAT analysis of η Car over the full data set (black points) together with a systematic error band (grey area). A fit to the data points below 200 GeV using the Naima package (Zabalza 2015) is shown by the black curve under the assumption that the γ-ray emission arises from proton-proton interactions with an exponential cutoff power-law distribution for the protons. Data points from a previous Fermi-LAT analysis (Reitberger et al. 2015) are shown in blue for comparison.