Mollweide RA–DEC projection maps of the significance σ (see the color-coded bars on the right side) computed from Eq. (10) for the A118 (top) and the C182 (bottom) catalogs. The maximum Δa direction (α_m, δ_m) = (144° , − 54° ) for the A118 catalog (top panel, black cross), the maximum direction (α_m, δ_m) = (270° , − 6° ) for the C182 catalog (bottom panel, black cross), and the CMB dipole direction (α_⋆, δ_⋆) = (168° , − 7° ) (black dots) are also shown.