TRISHNA
{{Short description|Planned joint Indo-French weather satellite }}
{{Use Indian English|date=March 2024}}
{{Infobox spaceflight
| name = TRISHNA
| image = TRISHNA_Earth_Observation_satellite_in_deployed_configuration.png
| mission_type = Weather
| mission_duration = ~ 5 years with possible 2 year extension https://www.isro.gov.in/media_isro/pdf/Highlights/Flyer_Trishna_Workshop300724.pdf
| spacecraft_bus = IMS-1K
| manufacturer = ISRO
| start_date = {{start date text| |timezone=yes}} UTC
| launch_date = 2026 https://www.isro.gov.in/media_isro/pdf/Highlights/Flyer_Trishna_Workshop290724.pdf
| launch_rocket = Polar Satellite Launch Vehicle
| launch_site = Satish Dhawan Space Centre
| orbit_regime = Polar sun-synchronous
| orbit_eccentricity = 0
| orbit_altitude = 761 km
| orbit_inclination = ~90°
| orbit_repeat = 8 days
}}
TRISHNA or (Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment) 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
The Mission was announced during bilateral talks between India and France in July 2023.{{Cite news |title=India, France agree on setting up strategic dialogue on space issues, work on Trishna satellite |url=https://timesofindia.indiatimes.com/india/india-france-agree-on-setting-up-strategic-dialogue-on-space-issues-work-on-trishna-satellite/articleshow/101771062.cms |access-date=2024-03-23 |work=The Times of India |issn=0971-8257}}{{Cite web |last=Team |first=ANI |date=July 14, 2013 |title=PM Modi calls to enhance India-France cooperation in Space-based Maritime Domain |url=https://www.aninews.in/news/world/europe/pm-modi-calls-to-enhance-india-france-cooperation-in-space-based-maritime-domain20230714230355/ |access-date=23 March 2024 |website=ANI news}} On 19 March 2024, TRISHNA received approval from both space agencies and a project team has been formed to finish developing the mission concept.{{Cite web |date=2024-03-19 |title=NASA-ISRO SAR (NISAR) Unlikely To Launch Before The End Of May, TRISHNA Gets Space Commission's Nod: Report |url=https://www.timesnownews.com/technology-science/nasa-isro-sar-nisar-unlikely-to-launch-before-the-end-of-may-trishna-gets-space-commissions-nod-report-article-108623408 |access-date=2024-03-23 |website=TimesNow |language=en}}{{Cite news |date=2024-03-19 |title=Nisar only in 2nd half of 2024; Trishna gets nod |url=https://timesofindia.indiatimes.com/india/nisar-only-in-2nd-half-of-2024-trishna-gets-nod/articleshow/108620945.cms |access-date=2024-03-23 |work=The Times of India |issn=0971-8257}} It is currently planned for a launch in 2026, aboard a PSLV rocket from Satish Dhawan Space Centre.{{Cite web |title=TRISHNA (Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment) - eoPortal |url=https://www.eoportal.org/satellite-missions/trishna |access-date=2024-03-23 |website=www.eoportal.org |language=en}} 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.