Smoothed γ-ray TS maps (8° ×8° scale with 0.2° per pixel) based on Fermi-LAT data between MJD 58072 and MJD 58252. Panel 1a corresponds to an analysis source model without 4FGL J0433.0+0522, while in the residual TS map (i.e., panel 1b), the target is included. The green X-shaped symbol and ellipse represent optimized position and positional uncertainties of the neutrino, respectively. The red and yellow crosses are the optimized γ-ray locations of 4FGL J0433.0+0522 and 4FGL J0426.5+0517, respectively, together with the corresponding 95% C.L. γ-ray localization error radii (green circles). The white crosses represent other γ-ray sources in the 4FGL-DR4 catalog.