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NISAR Successfully Launched via GSLV-F16
Context:
India successfully launched the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite aboard GSLV-F16 from Sriharikota.
NISAR (NASA-ISRO Synthetic Aperture Radar)
- Purpose: Earth observation with high-resolution, all-weather, day-and-night imaging capability.
- Orbit: Sun-synchronous polar orbit at 747 km altitude; completes revisit every 12 days.
Key Technological Features:
- First Earth observation satellite with dual-frequency SAR:
- L-band SAR (by NASA).
- S-band SAR (by ISRO).
- Mounted on a single integrated platform.
- Uses ISRO’s I-3K satellite bus and is launched on GSLV-F16 with indigenous cryogenic upper stage.
- Total launch mass: 2,393 kg.
Launch Significance:
- First successful placement of a satellite in Sun-synchronous orbit by GSLV.
- 18th GSLV mission, 12th with indigenous cryogenic stage.
- Reflects ISRO’s technological advancement in high-mass satellite launch capability.
Applications and Impact:
- Climate change monitoring, glacier dynamics, forest biomass estimation, and agricultural productivity.
- Earthquake and volcano activity detection, coastal zone management, aviation safety, and infrastructure planning.
- Enhances disaster preparedness and resilience through timely geospatial data.
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