ISRO has completed the development of a Synthetic Aperture Radar (SAR) capable of producing extremely high-resolution images for a joint earth observation satellite mission with the US space agency NASA. NASA-ISRO SAR (NISAR) is a joint collaboration for a dual-frequency L and S-band SAR for earth observation.
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- NISAR will be the first satellite mission to use two different radar frequencies (L-band and S-band) to measure changes in our planet’s surface less than a centimetre across.
- The mission is targeted to launch in early 2022 from ISRO’s Sriharikota spaceport in Andhra Pradesh’s Nellore district, about 100 km north of Chennai.
- NASA is providing the mission’s L-band SAR, a high-rate communication subsystem for science data, GPS receivers, a solid-state recorder and payload data subsystem.
- ISRO is providing the spacecraft bus, the S-band radar, the launch vehicle and associated launch services for the mission, whose goal is to make global measurements of the causes and consequences of land surface changes using advanced radar imaging.
Important takeaways for all competitive exams:
- ISRO Chairman: K.Sivan.
- ISRO Headquarters: Bengaluru, Karnataka.
- ISRO established: 15 August 1969.
- Acting Administrator of NASA: Steve Jurczyk.
- Headquarters of NASA: Washington D.C., United States.
- NASA Founded: 1 October 1958.