EUMETSAT's Council has approved the EUMETSAT Polar System – Sterna, a $1 billion constellation of polar-orbiting microsatellites to deliver atmospheric temperature and humidity profiles. The 30-nation programme cleared funding after months of delay and targets operational meteorological soundings from polar orbits.
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EUMETSAT has green-lit a $1B, 30-nation EPS–Sterna polar microsatellite constellation to deliver atmospheric temperature and humidity profiles, creating a new operational source of high‑latitude sounding data (high‑latitude data routes and ground infrastructure context).
The funding clearance follows months of delay and increases Europe’s near‑term satellite build and launch demand, aligning with ESA’s plans for a record launch cadence in 2026 (ESA launch schedule context).
Sterna expands Europe’s operational Earth‑observation and meteorology portfolio alongside recent Sentinel missions, adding measurement capability that downstream weather services and national meteorological agencies will integrate into forecasting and operational products (recent Sentinel mission context).
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EUMETSAT approves Polar System – Sterna microsatellite constellation • aeromorning.com