M₅₀₀ estimated from the joint detection for the 538 ComPRASS candidates matching a redMaPPer cluster vs. the M₅₀₀ of the corresponding cluster calculated from the richness (Eq. (8)). The dotted red line indicates the line of zero intercept and unity slope. The solid blue line indicates the median ratio. The dashed blue lines indicate the interval of ±3σ around the median ratio. Magenta crosses indicate redMaPPer clusters that are not in Planck, SPT, ACT or MCXC.