ISRO Set to Launch NISAR Satellite from Sriharikota on July 30
The Indian Space Research Organisation (ISRO) is preparing to launch the NISAR Earth Observation Satellite on 30 July 2025 from the Sriharikota High Altitude Range (SHAR) spaceport. This landmark satellite has been jointly developed with NASA, marking the first-ever collaborative satellite mission between the two space agencies.
What is NISAR?
NISAR, short for NASA-ISRO Synthetic Aperture Radar, is the first Earth observation satellite to use dual-frequency SAR (Synthetic Aperture Radar) to scan the globe and generate detailed, all-weather, day-and-night surface imaging.
Key Mission Highlights
- Launch Vehicle: GSLV F16 heavy-lift rocket
- Mass: 2,392 kg
- Orbit: 743 km Sun-Synchronous Orbit (SSO)
- Global Scan Frequency: Every 12 days
SAR Technology: A Game Changer
Synthetic Aperture Radar (SAR) enables the satellite to capture high-resolution surface images even during cloudy weather or nighttime conditions. This provides continuous and uninterrupted Earth monitoring regardless of environmental limitations.
Dual-Frequency Radar Capabilities
- NASA’s ‘L’ band radar: Penetrates dense forests and vegetation to map ecological change.
- ISRO’s ‘S’ band radar: Delivers detailed surface imaging and structural mapping.
Applications & Use Cases
NISAR is designed to track even minor changes in the Earth’s surface. Its data will support:
- Ground deformation & tectonic movements
- Ice sheet & glacier monitoring
- Vegetation mapping & crop forecasting
- Shoreline erosion and coastal monitoring
- Disaster response & storm characterization
- Ship detection and marine surveillance
A New Chapter in Global Space Collaboration
The NISAR mission marks a significant leap in the India–US space partnership. Both agencies envision this as a benchmark in Earth observation for global environmental management, climate change mitigation, and sustainable development insights.
Final Thoughts
With its upcoming launch, NISAR is set to revolutionize the way scientists, governments, and environmental agencies observe our planet. It symbolizes not just scientific excellence, but international cooperation for a more informed and resilient Earth.
Stay tuned to gpsc-ojas.com/news for more ISRO updates and satellite mission breakthroughs.
