Gepubliceerd op 6 november 2025
On Tuesday, 4 November 2025 the launch of the fourth satellite of the Copernicus Sentinel-1 constellation, Sentinel-1D took place. The aim of this mission is to continue to strengthen Europe’s Earth observation capabilities and autonomy. Its launch reinforces also the Europe’s standing as a leading space power and a reliable provider of global environmental data.
By replacing Sentinel-1A, which has been serving since 2014, the new satellite ensures full mission continuity, greater system resilience, and an uninterrupted flow of valuable information to users worldwide.
Equipped with a high-performance C-band Synthetic Aperture Radar (SAR) instrument, Sentinel-1D will continue to observe our planet around the clock and under any weather conditions. With its Galileo-enabled receiver, Sentinel-1D will also ensure greater positioning accuracy and resilience, reinforcing Europe’s autonomy in space operations. Its data will contribute to a wide range of essential monitoring activities, including the detection of oil spills and illegal maritime operations, observation of floods, icebergs, and sea-ice dynamics, assessment of ground movement such as landslides, subsidence, or seismic events, and tracking of vegetation, forestry, and agricultural developments.
For more information visit the ESA website: https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-1/Sentinel-1D_reaches_orbit_on_Ariane_6