From the Imbrium Basin to crater Tycho: The first regional spectral distribution map derived from SIR-2 near-infrared data

► New method of classification of lunar surface materials based on their NIR spectra. ► The method, CNA, is a spectral-feature enhancing tool applied on SIR-2 data. ► New spectral distribution maps were produced of the Imbrium Basin. ► New spectral distribution maps were also produced of crater Tycho.