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SpaceX Launches Sentinel-6B to Extend Global Sea-Level Record

The mission advances an international effort that underpins modern ocean monitoring and forecasting.

Overview

  • Falcon 9 lifted off at 9:21 p.m. PST from Vandenberg’s Space Launch Complex 4E carrying the Airbus-built Sentinel-6B satellite.
  • The first-stage booster, on its third flight, landed at Vandenberg’s Landing Zone 4 about 9 minutes 30 seconds after liftoff.
  • Sentinel-6B separated from the second stage about 57 minutes into flight, with ESA confirming initial contact soon after.
  • Mission teams expect the spacecraft to enter operations within days before continuing the long-running sea-surface height record.
  • The $1 billion U.S.–European program will map roughly 90% of Earth’s ice-free oceans every 10 days using a precision radar altimeter.