 Combining the results from different off-axis angles it is possible to extract the results for nearly monochromatic neutrino spectrum without relying on theoretical models of neutrino interactions to reconstruct neutrino energy.Usage of the same type of detector as the far detector with almost the same angular and momentum acceptance allows comparing results from these two detectors without relying on detectors response simulations.These two facts, independence from the neutrino interaction and detector response models, will enable to minimise systematic error in the oscillation analysis.