Trend decomposition. Top: γ ray. Bottom: UV (filter "uvv"). The green (blue) lines represent the underlying trend extracted by the function seasonal_decompose. Note that the green (blue) line covers a shorter time span than the full light curve duration, a result of the trend decomposition applied by this function. The red line indicates the fit of the green line, with the dashed red line extending the fitted line across the entire light curve. R² is 81.3% and 76.8% for γ ray and UV, respectively, denoting a ”substantial” fit in both cases.