In with paper we demonstrate the application of original method for solving the inverse problem of hyperspectral satellite sensing to retrieval of the vertical profile of HDO/H2O ratio in the Earth's atmosphere with the simultaneous use of thermal and near-IR spectra is described. This method is used to retrieve relative abundance of HDO isotopologue (δD) in atmospheric water vapor from measurements of TANSO-FTS IR spectrometer onboard GOSAT-2 satellite for the first time. Retrieved δD-values are compared with data obtained at ground-based TCCON measurement station in Karlsruhe, Germany. The simultaneous use of satellite spectra of outgoing atmospheric radiation in the thermal range and reflected solar radiation in the near-IR shows a higher correlation between monthly average δD satellite values of and ground-based data.