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The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
The Copernicus Sentinel-1 mission is designed as a two-satellite constellation. Each satellite carries an advanced radar instrument to provide an all-weather, day-and-night supply of imagery of Earth’s surface.
The launch
Date: Sentinel-1A - 03 April 2014
Sentinel-1B - 25 April 2016
Sentinel-1C - 5 December 2024 Sentinel-1D - 4 November 2025
Site: Kourou, French Guiana
Rocket: Sentinel-1A and -B on Soyuz
Sentinel-1C on Vega-C Sentinel-1D on Ariane 6