TRISHNA Mission
Why in News?
French space agency CNES publicly reaffirmed strong trust in ISRO and highlighted ongoing joint work on TRISHNA, even after some PSLV setbacks and final preparations solidify for its scheduled launch next year in 2027.
Overview & Specifications
- Full Form & Partnership: Thermal InfraRed Imaging Satellite for High-resolution Natural Resource Assessment.
- Orbit & Launch: Planned for a 5-year operational lifespan in a sun-synchronous polar orbit (761 km altitude), utilizing ISRO's PSLV.
- Payloads: Equipped with a CNES-developed Thermal Infra-Red (TIR) 4-channel long-wave sensor and an ISRO-built VNIR-SWIR 7-band imaging instrument.
- Resolution & Revisit: Delivers 57-meter resolution for land/coastal zones and 1 km for oceanic/polar regions, with a revisit frequency of three times a week.
Key Objectives & Global Applications
- Primary Goals: Focuses on tracking continental water and energy budgets, quantifying terrestrial water stress and evapotranspiration, and monitoring inland/coastal water quality.
- Secondary Focus: Addresses urban microclimates (Urban Heat Islands), volcanic/geothermal anomalies, cryosphere dynamics, and atmospheric data collection.
- Global Frameworks: Data supports international initiatives like GEOGLAM, UN Sustainable Development Goals (SDGs), and Global Water Watch.
