4 November 2025 year, a powerful Ariane rocket was launched from the European spaceport in French Guiana 6, which successfully launched an Earth observation satellite into orbit
Sentinel-1D, which is part of the European Copernicus program.
The Sentinel-1 family images the Earth with a synthetic aperture radar (SAR), that works
in any weather, day and night. The obtained data are used to solve tasks, among which confirmation: melting glaciers, deforestation, landslides, etc. This is critical for rescuers, which eliminate the consequences of natural disasters and catastrophes. In addition, services, which are built on the Sentinel-1D radar space survey use environmental structures, maritime services, climatologists and the wider community of Earth observation users around the world. Continuity of receiving data from the DZS makes a significant contribution
in the fight against the climate crisis.
Sentinel-1D will replace the eleven-year-old Sentinel-1A and will work in tandem with Sentinel-1C, providing updates every 6 hours. Both satellites are equipped with high-resolution C-band radar and AIS automatic identification system, which will allow detection of vessels, track their location and direction of movement. Sentinel-1D and Sentinel-1C are compatible with both the Galileo navigation system, as well as with other Global Navigation Satellite Systems (GNSS).
Source: https://www.esa.int