Sentinel-6B Spacecraft Arrival and Uncrating at Astrotech, VSFB

Technicians transfer the Sentinel-6B spacecraft from the NASA hangar to the Astrotech Space Operations payload processing facility at Vandenberg Space Force Base in California on Wednesday, Sept. 24, 2025, to undergo detailed inspections, tests, and fueling in a cleanroom as it prepares for a November launch on a SpaceX Falcon 9 rocket. A collaboration between NASA, ESA (European Space Agency), EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), and the National Oceanic and Atmospheric Administration (NOAA), Sentinel-6B is designed to measure sea levels down to roughly an inch for about 90% of the world’s oceans.