TRISHNA
 | |
| Mission type | Weather |
|---|---|
| Operator | ISRO/CNES |
| Website | https://www.isro.gov.in/TRISHNA_Mission.html |
| Mission duration | ~ 5 years with possible 2 year extension [1] |
| Spacecraft properties | |
| Bus | IMS-1K |
| Manufacturer | ISRO |
| Expedition | |
| Began | UTC |
| Start of mission | |
| Launch date | 2026 [2] |
| Rocket | Polar Satellite Launch Vehicle |
| Launch site | Satish Dhawan Space Centre |
| Orbital parameters | |
| Regime | Polar sun-synchronous |
| Eccentricity | 0 |
| Altitude | 761 km |
| Inclination | ~90° |
| Repeat interval | 8 days |
TRISHNA or (Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment)[3][4] is a planned cooperative joint satellite mission between the Indian Space Research Organisation (ISRO) of India and Centre national d'études spatiales (CNES) of France.
History
[edit]The Mission was announced during bilateral talks between India and France in July 2023.[5][6] On 19 March 2024, TRISHNA received approval from both space agencies and a project team has been formed to finish developing the mission concept.[4][3] It is currently planned for a launch in 2026, aboard a PSLV rocket from Satish Dhawan Space Centre.[7][2] This marks the next collaboration in space between India and France following the Megha-Tropiques and SARAL satellites.
A Workshop is planned to be conducted by ISRO and CNES in November 2024 about the mission goals.[2]Its orbit will provide a spatial resolution of 57 meters for land and coastal areas and 1 km for oceanic and polar regions. The mission is designed for a 5-year operational life.[8]
Instruments
[edit]Trishna aims to have a resolution of approximately 57 metres and a re-visit interval of about three days.[3][4] It would have two instruments, namely Visible and Near Infrared (VNIR)/Short Wave InfraRed (SWIR) sensor (VSWIR) that wil be built by ISRO and Thermal InfraRed instrument (TIR) built by CNES.[7][9]
References
[edit]- ^ "International Science Workshop on High-Resolution Thermal Earth Observation" (PDF). Archived from the original (PDF) on 2024-07-30.
- ^ a b c "International Science Workshop on High-Resolution Thermal Earth Observation" (PDF). Archived from the original (PDF) on 2024-07-29.
- ^ a b c "Nisar only in 2nd half of 2024; Trishna gets nod". The Times of India. 2024-03-19. ISSN 0971-8257. Retrieved 2024-03-23.
- ^ a b c "NASA-ISRO SAR (NISAR) Unlikely To Launch Before The End Of May, TRISHNA Gets Space Commission's Nod: Report". TimesNow. 2024-03-19. Retrieved 2024-03-23.
- ^ "India, France agree on setting up strategic dialogue on space issues, work on Trishna satellite". The Times of India. ISSN 0971-8257. Retrieved 2024-03-23.
- ^ Team, ANI (July 14, 2013). "PM Modi calls to enhance India-France cooperation in Space-based Maritime Domain". ANI news. Retrieved 23 March 2024.
- ^ a b "TRISHNA (Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment) - eoPortal". www.eoportal.org. Retrieved 2024-03-23.
- ^ "TRISHNA Mission: Advancing High-Resolution Thermal Imaging for Climate and Resource Management". www.isro.gov.in. Retrieved 2025-09-22.
- ^ "TRISHNA Mission: Advancing High-Resolution Thermal Imaging for Climate and Resource Management". www.isro.gov.in. Retrieved 2025-09-22.