SpaceX is scheduled to launch an advanced ocean-mapping satellite, Sentinel-6B, from California early Monday morning, November 17. The mission, a collaboration between European and American space agencies, is critical for monitoring global sea-level rise with unprecedented accuracy. The launch, set for 12:21 a.m. EDT (0521 GMT), will deploy the satellite into an 830-mile (1,336-kilometer) orbit.
The Importance of Precise Sea-Level Monitoring
Rising sea levels are a direct consequence of climate change, and accurate monitoring is essential for understanding the scale and pace of this phenomenon. Over the past 25 years, global sea levels have risen nearly 4 inches (10 cm), according to data from the European Union’s Copernicus program. Sentinel-6B will continue the work of its predecessor, Sentinel-6 Michael Frelich, launched in 2020, providing critical data to track these changes.
How Sentinel-6B Works
The satellite utilizes a radar altimeter developed by the European Space Agency (ESA) to measure sea surface heights with high precision. It also carries a microwave radiometer provided by NASA, which determines atmospheric water content to refine the altimeter’s readings. This combined approach ensures more accurate data collection and interpretation.
Collaborative Effort
The mission is a joint effort involving the European Commission, ESA, NASA, Eumetsat, the U.S. National Oceanic and Atmospheric Administration, and the French space agency CNES. The collaboration highlights the international commitment to understanding and addressing climate change.
Launch Details
The Falcon 9 rocket will deploy Sentinel-6B approximately 57 minutes after liftoff. The 3,175-pound (1,440 kilograms) satellite will then enter its science orbit, where it will begin collecting data. During its first year, Sentinel-6B will work alongside Sentinel-6 Michael Frelich, allowing for cross-calibration and enhanced accuracy.
The launch can be watched live on Space.com or directly through NASA’s coverage, which begins at 11:30 p.m. EDT on Sunday, November 16.
Monitoring sea-level rise is now a top priority, and Sentinel-6B will play a vital role in providing the precise data needed to understand and respond to this critical climate challenge
