TRISHNA : towards innovative infra-red data for environmental monitoring

Planned to be launched in 2026, the TRISHNA mission (Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment) aims at providing visible and infra-red measurements with a worldwide coverage, for continents and coastal ocean. During its 5-year mission lifetime, it will acquire signal of the surface-atmosphere system with a 60-meter resolution. With such characteristics, TRISHNA mission can be considered as a precursor for future missions, such as SBG (NASA) or LSTM (ESA/COPERNICUS), with which a synergy has been established to allow a long term data inter-comparison.

Resulting from a cooperation between CNES and ISRO, TRISHNA mission will take advantage of two mission centers, in France and in India, to provide users with Level 1C, 2 and 3 products. Based on identical algorithms specifications and products definitions, these ground segments will process and deliver data with Near Real Time demonstration objectives. Indeed, to allow quick decisions, some Level 2 products (for instance water stress indexes) shall be made available to users in less than 12 hours after acquisition.

This presentation will give an update of the status of TRISHNA mission, focusing on the details of products which will be provided and their potential application in environmental remote sensing. The French ground segment will also be described to enhance how TRISHNA data will be processed and delivered.