NASA-ISRO's NISAR Earth Observation Satellite to Launch on July 30 from Sriharikota

Last Updated Jul - 22 - 2025, 05:32 PM | Source : Fela news

NASA and ISRO’s joint satellite NISAR, equipped with dual-frequency SAR for high-resolution Earth observation, will launch on July 30 aboard GSLV-F16. The missi

NASA-ISRO's NISAR Earth Observation

The NASA-ISRO Synthetic Aperture Radar (NISAR), the first collaborative satellite developed by the U.S. and Indian space agencies, is scheduled for launch on July 30 at 5:40 p.m. IST. The satellite will be lifted into space aboard the GSLV-F16 rocket from the Satish Dhawan Space Centre in Sriharikota. It will be placed in a 743 km Sun-synchronous orbit with an inclination of 98.40 degrees.

Weighing 2,392 kg, NISAR is a state-of-the-art Earth observation satellite equipped with dual-frequency Synthetic Aperture Radar (SAR) systems NASA’s L-band and ISRO’s S-band both operating via NASA’s 12-meter unfurlable mesh reflector antenna. These systems are mounted on a modified I3K satellite bus from ISRO. Notably, the mission will use SweepSAR technology, offering a 242 km swath and high-resolution imaging.

NISAR will deliver global, all-weather, day-and-night data every 12 days. It can detect subtle surface changes such as ground shifts, ice movements, and vegetation patterns. The data will support applications like sea ice tracking, storm monitoring, soil moisture changes, ship detection, and disaster response.

ISRO emphasized that the mission stems from over ten years of technical collaboration between ISRO and NASA’s Jet Propulsion Laboratory. Multiple ISRO centres contributed, including the Space Applications Centre in Ahmedabad (S-band SAR) and the U.R. Rao Satellite Centre (spacecraft bus).

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NASA-ISRO's NISAR Earth Observation Satellite to Launch on July 30 from Sriharikota

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