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Launch of Sentinel-6B Ocean Satellite

Published on: 20-Nov-2025

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Launch of Sentinel-6B Ocean Satellite

Article Summary

Key Highlights from Sentinel-6B Launch

Mission Overview

  • Launch Date: Recent launch from Vandenberg Space Force Base, California.
  • Vehicle: Sentinel-6B, an ocean-tracking satellite.

Technical Specifications

  • Speed: Orbits Earth at 7.2 km/s.
  • Orbit Period: Completes one revolution every 112 minutes.
  • Instruments: Equipped with six science instruments for various measurements.

Purpose and Importance

  • Primary Function: Measures rising sea levels and impacts on global climate.
  • Data Utilization:
    • Enhances accuracy of weather forecasting.
    • Improves storm and flood predictions.
    • Aids in monitoring and protecting undersea pipeline and cable networks.
    • Supports shipping services with timely data.

Collaborative Effort

  • Joint Mission: Collaboration between NASA, NOAA (National Oceanic and Atmospheric Administration), and the European Space Agency (ESA).

Historical Context

  • Part of Series: Follows a lineage of sea-level measurement satellites launched since the 1990s.
  • Twin Satellite: Operates alongside Sentinel-6 Michael Freilich, launched in November 2020.

Data Impact

  • Precision: Capable of providing sea level measurements with an accuracy of approximately one inch.
  • Coverage: Data expected to contribute to over 90% of global ocean surface measurements.

This satellite plays a critical role in understanding and responding to climate-related phenomena, public safety challenges, and maritime infrastructure resilience.

Key Terms & Concepts

Sentinel-6BOcean-tracking satellite
Vandenberg Space Force BaseLaunch site
NASAUS space agency involved
NOAAWeather and ocean data agency
European Space AgencyCollaborating space agency
7.2 km per secondOrbital speed
112 minutesOrbital period
90%Coverage of oceans measured
Sentinel-6 Michael FreilichTwin satellite
November 2020Launch date of twin satellite

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