The Sentinel-6B ocean monitoring satellite is set to launch aboard a SpaceX Falcon 9 rocket, marking a significant milestone in Earth observation. This joint US-European mission will provide crucial data for monitoring global sea levels, wave heights, and ocean winds, ensuring a continuous record of over 30 years of data from the TOPEX/Poseidon, Jason, and Sentinel-6 satellites. The Sentinel-6B spacecraft, built by Airbus Defence and Space, is the second in the Jason Continuity of Service (Jason-CS) mission, launching five years after its predecessor, Sentinel-6A Michael Freilich. It carries a suite of advanced instruments, including the Poseidon-4 radar altimeter and the Advanced Microwave Radiometer for Climate (AMR-C), to measure ocean topography and atmospheric conditions accurately. The satellite's precise orbit determination (POD) system, featuring the DORIS DGXX-SEV and GNSS-POD, ensures accurate positioning for its measurements. The Falcon 9 rocket, with its reusable first stage, will launch from Vandenberg Space Force Base, carrying Sentinel-6B into a low-Earth orbit for a 10-day repeat track of Earth's oceans. This mission is a testament to international collaboration in space exploration and environmental monitoring.
