Completeness limit as a function of absolute magnitude. Left: completeness limit in the G band. The limit is computed for a sliding bin with a 0.1 mag step and 1 mag bin width. Right: completeness limit as a function of absolute magnitude in the W1 band. Here, a 0.15 mag step and a 2 mag bin width was used. The completeness limits are 18.9 mag in the G band and 11.8 mag in W1.