Spectra of the pipeline spaxel (1.5″ × 1.5″) located toward the nucleus. The orange spectrum shows the observed spectrum (including errors from the ramp fit) without correction for atmospheric transmission. The telluric absorption feature at 51.7 μm can clearly be seen in the continuum. The blue spectrum shows the pipeline-corrected spectrum, including the errors determined as described in Sect. 2.1. The grey area shows the spectral region used to calculate flux density uncertainties. Green shows the best fit from the Monte Carlo method.