Results for AT2020wey. Left: ZTF gr-band light curves (symbols in blue and in red) of AT2020wey in rest frame, with horizontal dashed lines marking the determined apparent magnitudes of the host galaxy contributions. Middle: LC_g, TDE(t) (blue symbols) and LC_r, TDE(t) (red symbols) after the host galaxy contributions were subtracted. In the middle panel, the solid and dashed lines in blue and in red show the best descriptions and corresponding 1RMS scatters of LC_g, TDE(t) and LC_r, TDE(t), respectively, determined by the mathematical method. The corresponding parameters are marked in blue and red characters. The vertical solid lines in blue and in red mark the peak positions of the best-fitting results to the LC_g, TDE(t) and LC_r, TDE(t), the vertical dotted lines in blue, and the line in red mark the corresponding positions for the half maximum of the best-fitting results. Right: New descriptions of LC_g, TDE(t) and LC_r, TDE(t) by the modified formula. The symbols and line styles have the same meaning as in the middle panel.