Prospects for observing supermassive black hole binaries with the space-ground interferometer

A list of candidates for $\mathit{\text{supermassive}}\mathit{\text{binary}}\mathit{\text{black}}\mathit{\text{holes}}$ (SMBBHs), compiled from available data on the variability in the optical range and the shape of the emission spectrum, is analysed. An artificial neural network is constructed to estimate the radiation flux at 240~GHz. For those candidate SMBBH for which the network building procedure was feasible, the criterion of the possibility of observing the source at the $\mathit{\text{Millimetron}}\mathit{\text{Space}}\mathit{\text{Observatory}}$ (MSO) was tested. The result is presented as a table of 17 candidate SMBBHs. Confirmation (or refutation) of the duality of these objects by means of observational data which could be commited on a space-ground interferometer with parameters similar to those of the MSO will be an important milestone in the development of the theory of galaxy formation.