Comparison of IRAS (100 μm) and AKARI (160 μm) photometrywith synthetic PACS photometry at these wavelengths before (left) and after (right) the interactive reprocessing of the data carried out in this work and that is available through the THROES catalogue. The objects plotted here are those which present a complete coverage of the PACS spectral range. We have established a code to distinguish the extended objects (blue crosses), the mispointed ones (red squares), the objects with bad IRAS₁₀₀ or AKARI₁₆₀ data (Quality Flag ≠ 3, red triangles), and objects with good IRAS₁₀₀ or AKARI₁₆₀ data (Quality Flag = 3, black circles with error bars). The solid line represents a perfect match (1:1 ratio) of the synthetic (PACS) and observational photometric (IRAS and AKARI) points.