5BZQJ 0228+6721. Top left panel: Sky-Explorer view, showing 3FGLJ 0228.5+6703 marked with “x” symbol, and dashed line for the error circle associated with the 3FGL γ-ray signature. We also highlight the positions of GB6 J0229+6706 and 5BZQJ 0228+6721. The red and blue circles represent radio and X-ray detections in the field. Top right panel: TS map considering E > 500 MeV photons, with dashed lines representing 68%, 95%, and 99% containment region for the γ-ray signature; 5BZQJ 0228+6721 is center at “+” matching the TS peak position. Bottom panel: SED for 5BZQJ 0228+6721, with blue bump assuming z = 0.523.