NISAR satellite: About 10-year labour of ISRO-NASA
The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite, a testament to equal partnership forged on September 30, 2014, is ready for liftoff from India's Sriharikota rocket port aboard the Geosynchronous Satellite Launch Vehicle-F16 (GSLV-F16).
The complex payloads and mainframe systems have been designed, developed, qualified and realised over a period of 8 to 10 years, said ISRO.
The S-Band SAR and L-Band SAR were independently developed, integrated and tested at ISRO and Jet Propulsion Laboratory (JPA), NASA respectively.
The Integrated Radar Instrument Structure (IRIS), consisting of S – Band and L – Band SAR and other payload elements were integrated and tested at JPL/NASA and delivered to ISRO.
Mainframe satellite elements and payloads were assembled, integrated and tested at ISROs U R Rao Satellite Centre, Bengaluru.
The spacecraft is built around ISRO's I-3K Structure. It carries two major Payloads viz., L & S- Band Synthetic Aperture Radar (SAR).The S-band Radar system, data handling & high- speed downlink system, the spacecraft and the launch system are developed by ISRO.
The L-band Radar system, high speed downlink system, the Solid-State Recorder, GPS receiver, the 9m Boom hoisting the 12m reflector are delivered by NASA.
Further, ISRO takes care of the satellite commanding and operations, while NASA will provide the orbit maneuver plan and Radar operations plan.
NISAR mission will be aided with ground station support of both ISRO and NASA for downloading of the acquired images, which after the necessary processing will be disseminated to the user community.
The data acquired through S-band and L-band SAR from a single platform will help the scientists to understand the changes happening to Planet Earth.
The about 10-year labour is slated to be delivered by an Indian rocket Geosynchronous Satellite Launch Vehicle-F16 (GSLV-F16) on July 30, 2025 evening from India's Sriharikota rocket port.
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