Example of one realisation of a simulation of the population of Galactic SNRs. The grey shaded region is the HGPS detectability range for point-like sources with a luminosity of 5 × 10³³ photons s⁻¹ (equivalent to a differential flux at 1 TeV of ∼4 × 10⁻¹¹ TeV⁻¹ cm⁻² s⁻¹ at a distance of 1 kpc). The blue plus symbols mark the simulated sources that are detectable, and the black dots mark the simulated sources that are not detectable. 3.7% of the emitting SNRs are detectable in this realisation. The location of the Sun is marked by the red cross.