ISRO to Launch ISRO-NASA NISAR Satellite on July 30

Quick Summary

• NASA and ISRO are set to launch the Synthetic Aperture Radar (NISAR) satellite on July 30, 2025, at 5:40 PM IST from Satish Dhawan Space Center (SDSC SHAR), Sriharikota.
• NISAR will be launched aboard ISRO’s GSLV-F16 rocket into a 743 km Sun-synchronous orbit with an inclination of 98.40°.
• Weighing 2392 kg, NISAR features dual-frequency Synthetic Aperture Radar (NASA’s L-band and ISRO’s S-band) with NASA’s advanced unfurlable mesh reflector antenna integrated onto ISRO’s modified I3K satellite bus.
• the satellite will scan the globe every 12 days using sweepsar technology, delivering all-weather, day-and-night earth observation data at high spatial resolution across a swath of up to 242 km.
• Applications include detecting small changes in Earth’s surface (e.g., ground deformation, ice sheet movement), monitoring vegetation dynamics and soil moisture levels, shoreline mapping, disaster response planning, storm characterization, surface water resource management, ship detection, sea ice classification and more.
• This project marks over a decade of technical cooperation between ISRO and NASA/JPL teams.

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