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July 2, 2025

Video: MTG-S1 and Copernicus Sentinel-4 launch highlights

Credit: European Space Agency
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Credit: European Space Agency

Two meteorological missions—Meteosat Third Generation Sounder-1 (MTG-S1) and the Copernicus Sentinel-4 mission—have launched on board a SpaceX Falcon 9 from Cape Canaveral in Florida, US.

Both are world-class Earth observation missions developed with European partners to address scientific and societal challenges.

The will generate a completely new type of data product, especially suited to nowcasting severe weather events, with three-dimensional views of the atmosphere. It is the second in the MTG constellation to be prepared for orbit and is equipped with the first European operational Infrared Sounder instrument.

will be the first mission to monitor European air quality from , providing hourly information that will transform how we predict air pollution across Europe, using its ultraviolet, visible, near-infrared light (UVN) spectrometer.

Credit: European Space Agency

Provided by European Space Agency

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The MTG-S1 satellite will provide three-dimensional atmospheric data for improved nowcasting of severe weather, utilizing the first European operational Infrared Sounder. Copernicus Sentinel-4 will deliver hourly air quality measurements over Europe from geostationary orbit using a UVN spectrometer, enhancing air pollution prediction capabilities.

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