Arianespace has successfully launched the Copernicus Sentinel-1D satellite aboard the Ariane 6 rocket. This mission signifies a crucial step in Europe’s efforts to enhance space autonomy. The launch occurred on November 4, 2025, at 6:02 p.m. local time from Kourou, French Guiana.
Ariane 6 Launches Sentinel-1D Satellite
The Sentinel-1D satellite is equipped with advanced radar technology. It aims to provide high-quality imagery of the Earth’s surface in all weather conditions, both day and night. This launch marks the third commercial flight for the Ariane 6 heavy-lift launcher.
Key Mission Details
- Date: November 4, 2025
- Launch Time: 6:02 p.m. local time (9:02 p.m. UTC, 10:02 p.m. CET)
- Orbit: Sun-synchronous orbit (SSO) at an altitude of 693 km
- Separation Time: 34 minutes after lift-off
- Mission Designation: VA265
David Cavaillolès, CEO of Arianespace, emphasized the company’s commitment to environmental missions. He stated that this launch supports the Copernicus program, which focuses on environmental monitoring. Arianespace has now successfully delivered a total of seven Sentinel satellites as part of this initiative.
The Role of Copernicus
Copernicus, managed by the European Union, is the most advanced Earth observation system globally. It provides free and reliable data to various stakeholders, including public authorities and companies. The Sentinel-1D satellite will enhance the monitoring of critical environmental parameters such as sea ice, glaciers, and potential oil spills.
Highlights of the Launch
- 356th launch by Arianespace
- 4th flight of Ariane 6
- 3rd commercial mission for Ariane 6 in 2025
- 10% of Arianespace’s launches involve Earth observation satellites
- 7th Sentinel mission completed
- 53rd mission managed for the European Space Agency
- 109th satellite launched from Thales Alenia Space
Martin Sion, CEO of ArianeGroup, noted the successful ramp-up of the Ariane 6 production. This achievement guarantees Europe’s sovereign access to space while underscoring collaboration among various industrial partners.
The successful deployment of Sentinel-1D is a testament to the reliability and performance of the Ariane 6, paving the way for future missions and further advancements in Earth observation capabilities.
