Significance as a function of (S/N)_J − q_J for the second phase detections corresponding to P_FA = 3.40 × 10⁻⁶, with (S/N)_sz > 3 and outside the SZ mask. Red circles indicate the detections that pass all the other cuts (t_exp > 100 s and (S/N)_J > q_J), while black circles indicate the detections that do not pass them. The solid blue line is the best linear fit with a fixed intercept of 4.5.