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The Indian Space Research Organisation (ISRO) and NASA’s Jet Propulsion Laboratory are jointly working on the development of a Dual Frequency (L&S band) Synthetic Aperture Radar (SAR) Imaging Satellite named as NASA-ISRO Synthetic Aperture Radar (NISAR). The project is slated to be completed and launched by 2021.

ISRO will be responsible for design and development of S-band SAR, Spacecraft Bus, data transmission system, spacecraft integration and testing. The radar will be launched using the Geosynchronous Satellite Launch Vehicle (GSLV) and ISRO will also be reponsible for the in-orbit operations.

NASA is responsible for developing the L-band SAR sensor, the antenna, the GPS system and data recorder and relay system.

The L and S band microwave data obtained from this satellite will be useful for variety of applications, which include natural resources mapping & monitoring; estimating agricultural biomass over full duration of crop cycle; assessing soil moisture; monitoring of floods and oil slicks; coastal erosion, coastline changes and variation of winds in coastal waters; assessment of mangroves; surface deformation studies and others.