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EPS-Sterna

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EPS-Sterna
OperatorEUMETSAT, ESA
Specifications
RegimePolar orbit
Production
StatusApproved in January 2026
Planned20
Launched0
Maiden launch2029 (planned)
← Arctic Weather Satellite

EPS-Sterna (EUMETSAT Polar System – Sterna) is a future European constellation of weather satellites under development by EUMETSAT and the European Space Agency (ESA).[1] The satellites will be placed on polar orbits and observe atmospheric conditions using microwave sounders. The constellation's goal is to improve the frequency of observations needed for predicting severe weather in specific regions such as Mediterranean and to address data gaps over the Arctic.[2][3][4][5][6][7] EPS-Sterna builds upon technologies demonstrated by ESA's Arctic Weather Satellite (AWS) launched in 2024.[8][9][10] The name of the constellation refers to Sterna, the genus name of the Arctic tern.[8] Launch of the first six satellites is expected in 2029.[8]

See also

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References

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  1. ^ "WMO OSCAR | Details for Satellite Programme: EPS-Sterna". space.oscar.wmo.int. Retrieved 2026-01-22.
  2. ^ "New EPS-Sterna satellites poised to transform weather observations". www.mi.uni-hamburg.de. Retrieved 2026-01-22.
  3. ^ Selding, Peter B. de (2026-01-12). "This time it's final: Eumetsat commits to $1-billion EPS-Sterna constellation to study atmospheric temperature, humidity". Space Intel Report. Retrieved 2026-01-22.
  4. ^ "Eumetsat Formally Approves EPS-Sterna Constellation For 2029 Launch | Aviation Week Network". aviationweek.com. Retrieved 2026-01-22.
  5. ^ Selding, Peter B. de (2025-11-27). "Eumetsat members clear administrative hurdles, approve full development of billion-dollar EPS-Sterna satellite constellation". Space Intel Report. Retrieved 2026-01-22.
  6. ^ Varley, Robert A.; Ratier, Alain; Counet, Paul; Ruti, Paolo (2025). "The social and economic benefits of EPS-Aeolus and EPS-Sterna". Journal of the European Meteorological Society. 2: 100008. doi:10.1016/j.jemets.2025.100008. ISSN 2950-6301.{{cite journal}}: CS1 maint: article number as page number (link)
  7. ^ Rivoire, Louis; Marty, Robin; Carrel-Billiard, Thomas; Chambon, Philippe; Fourrié, Nadia; Audouin, Olivier; Martet, Maud; Birman, Camille; Accadia, Christophe; Ackermann, Jörg (2024). "A global observing-system simulation experiment for the EPS–Sterna microwave constellation". Quarterly Journal of the Royal Meteorological Society. 150 (762): 2991–3012. doi:10.1002/qj.4747. ISSN 1477-870X.
  8. ^ a b c "Arctic Weather Satellite paves way for constellation". www.esa.int. Retrieved 2026-01-22.
  9. ^ "Europe backs transformative polar satellite constellation | EUMETSAT". www.eumetsat.int. 2026-12-01. Retrieved 2026-01-22.
  10. ^ "AAC Clyde Space's weather technology praised by ESA - supports future EPS-Sterna constellation | AAC Clyde Space". www.aac-clyde.space. 2025-04-17. Retrieved 2026-01-22.