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Constellations
Constellation profile

EPS-Sterna initial deployment batch

New polar microsatellite constellation for global microwave sounding and Arctic data-gap coverage; the first deployment batch begins in 2029.

European Space Agency (ESA)Service start: Not stated
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6 satellites2029Forecast table
Forecast entryYearSatellitesOrbitVehicleManufacturerMissionLaunch likelihood
EPS-Sterna initial deployment

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20
0% active share against stated target.
Initial deployment of six identical microwave-sounding microsatellites in three orbital planes to provide near-global coverage and fill Arctic data gaps.
2029
6
LEO
TBD
OHB
Earth Observation
4.6 / 5
EPS-Sterna initial deployment
TBD · LEO
6
2029
Manufacturer
OHB
Mission
Earth Observation
Launch likelihood
4.6 / 5
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