On July 1, 2025, the Meteosat Third Generation Sounder (MTG-S1) satellite, carrying the Copernicus Sentinel-4 instrument, was successfully launched into geostationary orbit. The launch, conducted by SpaceX using a Falcon 9 Block 5 rocket, took place from Cape Canaveral Space Force Station in Florida.
MTG-S1 is a crucial component of Europe's weather monitoring infrastructure, following the launch of MTG-I1 in 2022. This mission represents a groundbreaking achievement for Europe, deploying an infrared sounding instrument from a geostationary orbit for the first time.
The Sentinel-4 instrument will monitor air quality over Europe and North Africa, providing hourly data on pollutants like ozone and nitrogen dioxide. This data will significantly improve weather forecasting accuracy and climate research. The satellite is expected to operate until at least 2035, providing continuous data for various applications.
The launch, originally planned for an Ariane 6 rocket, was executed by SpaceX to ensure timely mission completion. This launch highlights the growing importance of international collaboration and the advancement of space technology.
The successful deployment of MTG-S1 and Sentinel-4 marks a major step forward in atmospheric monitoring, contributing valuable data for improved weather forecasting and climate research. This advancement enhances Europe's ability to understand and respond to environmental changes.