NASA to Preview Advanced US-India Radar Mission Ahead of Launch ...Middle East

A collaboration between NASA and the Indian Space Research Organisation, NISAR will use synthetic aperture radar to monitor nearly all the planet’s land- and ice-covered surfaces twice every 12 days.Credit: NASA

NASA will host a news conference at 12 p.m. EDT Monday, July 21, to discuss the upcoming NISAR (NASA-ISRO Synthetic Aperture Radar) mission.

The Earth-observing satellite, a first-of-its-kind collaboration between NASA and ISRO (Indian Space Research Organisation), carries an advanced radar system that will help protect communities by providing a dynamic, three-dimensional view of Earth in unprecedented detail and detecting the movement of land and ice surfaces down to the centimeter.

The NISAR mission will lift off from ISRO’s Satish Dhawan Space Centre in Sriharikota, on India’s southeastern coast. Launch is targeted for no earlier than late July.

NASA’s Jet Propulsion Laboratory in Southern California will stream the briefing live on its X, Facebook, and YouTube channels. Learn how to watch NASA content through a variety of platforms, including social media.

Participants in the news conference include:

Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters Karen St. Germain, director, Earth Science Division, NASA Headquarters Wendy Edelstein, deputy project manager, NISAR, NASA JPL Paul Rosen, project scientist, NISAR, NASA JPL

To ask questions by phone, members of the media must RSVP no later than two hours before the start of the event to: rexana.v.vizza@jpl.nasa.gov. NASA’s media accreditation policy is available online. Questions can be asked on social media during the briefing using #AskNISAR.

With its two radar instruments — an S-band system provided by ISRO and an L-band system provided by NASA — NISAR will use a technique known as synthetic aperture radar (SAR) to scan nearly all the planet’s land and ice surfaces twice every 12 days. Each system’s signal is sensitive to different sizes of features on Earth’s surface, and each specializes in measuring different attributes, such as moisture content, surface roughness, and motion.

These capabilities will help scientists better understand processes involved in natural hazards and catastrophic events, such as earthquakes, volcanic eruptions, land subsidence, and landslides.

Additionally, NISAR’s cloud penetrating ability will aid urgent responses to communities during weather disasters such as hurricanes, storm surge, and flooding. The detailed maps the mission creates also will provide information on both gradual and sudden changes occurring on Earth’s land and ice surfaces.

Managed by Caltech for NASA, JPL leads the U.S. component of the NISAR project and provided the L-band SAR. NASA JPL also provided the radar reflector antenna, the deployable boom, a high-rate communication subsystem for science data, GPS receivers, a solid-state recorder, and payload data subsystem. NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the Near Space Network, which will receive NISAR’s L-band data.

Multiple ISRO centers have contributed to NISAR. The Space Applications Centre is providing the mission’s S-band SAR. The U R Rao Satellite Centre provided the spacecraft bus. The rocket is from Vikram Sarabhai Space Centre, launch services are through Satish Dhawan Space Centre, and satellite mission operations are by the ISRO Telemetry Tracking and Command Network. The National Remote Sensing Centre is responsible for S-band data reception, operational products generation, and dissemination.

To learn more about NISAR, visit:

nisar.jpl.nasa.gov

-end-

Karen Fox / Elizabeth VlockHeadquarters, Washington202-358-1600karen.c.fox@nasa.gov / elizabeth.a.vlock@nasa.gov

Andrew Wang / Scott HulmeJet Propulsion Laboratory, Pasadena, Calif.626-379-6874 / 818-653-9131andrew.wang@jpl.nasa.gov / scott.d.hulme@jpl.nasa.gov

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Last Updated Jul 16, 2025 EditorJessica TaveauLocationNASA Headquarters

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NISAR (NASA-ISRO Synthetic Aperture Radar)Earth Science DivisionGoddard Space Flight CenterJet Propulsion LaboratoryNear Space NetworkScience Mission Directorate

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