Spectrum and best-fit spectral model for ObsID 02. The top panel consists of the best-fit model along with the different components. The second panel from the top shows the residual from the best-fit model without the addition of a cyclotron line. The third panel from the top corresponds to the residual obtained by setting the strength of the CRSF to zero. The bottom panel corresponds to the best-fit model residuals. The black points correspond to FPMA, while the red points are for FPMB.