Submillimeter and millimeter wave sky mapping in the space project submillimetron

Submillimetron is an international project of the space telescope for astronomical studies at submillimeter and millimeter wavelengths using free-flying spacecraft and facilities of the Russian segment of the International Space Station. The payload is the 60-cm telescope cooled to liquid helium temperature with arrays of a novel type detector, Normal-metal Hot-Electron Bolometer (NHEB). The angular resolution is 1–10 arcmin, field of view-about 1 degree, detectors sensitivity-about $10−18 W/Hz1/2,$ spectral region −0.2–2 mm. Parameters of the instrument and complementarity to other experiments including CMB measurements are discussed.