The satellite, operated by EUMETSAT for the European Commission's Copernicus Programme, is designed to provide high-precision measurements of sea level and freshwater systems.

The satellite's data will improve forecasts related to weather, ocean conditions, and climate. By supporting effective water management, Copernicus Sentinel-6B aims to help protect communities and livelihoods. It will soon succeed its twin, Copernicus Sentinel-6 Michael Freilich, as the world standard for high-precision satellite altimetry. Its measurements will assist in calibrating all ocean-surface missions, ensuring marine users worldwide have access to accurate information.

Copernicus Sentinel-6B will deliver global coverage by mapping up to 95 percent of Earth's ice-free oceans every 10 days. It will provide critical observations on ocean currents, wave heights, and wind speeds, extending a more than 30-year record of precise altimetry data essential for tracking climate change and global sea-level rise.

Besides its oceanic role, Sentinel-6B will also support inland-water management. It will measure river and lake levels and, together with existing and future Metop satellites from EUMETSAT, contribute to monitoring river discharge, flooding, and drought conditions.

Phil Evans, EUMETSAT Director-General, stated, "The rate of sea-level rise has nearly doubled in a generation and threatens 900 million people living in coastal regions. Through the operation and data delivery of Copernicus Sentinel-6B, EUMETSAT provides the accuracy and timeliness needed to monitor these changes and to help protect people, infrastructure, and ecosystems along our coasts."

Evans continued, "EUMETSAT is proud to operate Copernicus Sentinel-6B on behalf of the European Union's Copernicus Programme, in partnership with ESA, NASA, NOAA and the support from CNES, for the benefit of all."

Christoph Kautz, Director for Space Policy, Earth Observation, and Satellite Navigation at the European Commission (DEFIS) stated, "The Copernicus Sentinel-6B mission is a powerful example of how Europe turns space-based data into real value for people, the planet and prosperity. From supporting emergency management and disaster risk reduction to guiding sustainable fisheries and maritime transport, its open data will empower users across Europe and beyond."

ESA's Director of Earth Observation Programmes, Simonetta Cheli, said, "Collaboration between partners is key to a mission such as Sentinel-6, and my thanks go to everyone involved in developing, launching and operating this exceptional satellite, which follows in the footsteps of the first Sentinel-6, Michael Freilich.

This achievement demonstrates what can be accomplished when international agencies and industries work together toward a shared goal. Sentinel-6B will ensure that we continue to collect the high-precision data needed to understand our changing climate, safeguard our oceans and support decisions that protect coastal communities around the world."

After launch, EUMETSAT will acquire control of the spacecraft from ESA once it reaches its operational orbit. Working with European and U.S. partners, EUMETSAT will operate the full Sentinel-6 system through its commissioning phase, calibrating and validating all data before releasing it to Copernicus Marine Service users internationally.

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