| Operator | EUMETSAT,ESA | ||
|---|---|---|---|
| Specifications | |||
| Regime | Polar orbit | ||
| Production | |||
| Status | Approved in January 2026 | ||
| Planned | 20 | ||
| Launched | 0 | ||
| Maiden launch | 2029 (planned) | ||
| |||
EPS-Sterna (EUMETSATPolarSystem –Sterna) is a future Europeanconstellation ofweather satellites under development byEUMETSAT and theEuropean Space Agency (ESA).[1] The satellites will be placed onpolar orbits and observe atmospheric conditions usingmicrowave sounders. The constellation's goal is to improve the frequency of observations needed for predictingsevere weather in specific regions such asMediterranean and to address data gaps over theArctic.[2][3][4][5][6][7] EPS-Sterna builds upon technologies demonstrated by ESA'sArctic Weather Satellite (AWS) launched in 2024.[8][9][10] The name of the constellation refers toSterna, thegenus name of theArctic tern.[8] Launch of the first six satellites is expected in 2029.[8]
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