A new analysis procedure has been developed for the large-are a scintillating fibre detectors with position-sensitive photo multiplier (PSPM) read out used for heavy ions in the LAND set-up at GSI. It includes gain matching of the PSPM, calibration of the PSPM fibre  mask and hit re construction. This procedure  allows for aquasi-online calibration of this tracking device. It also allows for a precise determination of the position close to the intrinsic detector resolution of 1mm pitch together with  careful  treatment of individual event accuracies.