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Sentinel-1D
European radar imaging satellite From Wikipedia, the free encyclopedia
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Sentinel-1D is an upcoming European radar imaging satellite. It is the second of two additional satellites in the Sentinel-1 constellation, part of the European Union's Copernicus programme on Earth observation. The satellite is equipped with a C-SAR sensor, capable of providing high-resolution imagery regardless of weather conditions.[6][7][8][9] Sentinel-1D will be launched on Ariane 6 in late 2025.[10]
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Timeline
Development contract was signed with Thales Alenia Space of Italy in December 2015.[11] In November 2022, the satellite's launch was scheduled for the second half of 2024.[12] In January 2025, ESA signed a contract with Arianespace to launch the satellite in the second half of 2025 on Ariane 6.[13]
In September 2025 the satellite was transported from the cleanroom in Cannes, France, via Turin, Italy to French Guiana by the Ukrainian Antonov Airlines.[14][15] At the same time, control teams at ESOC begun simulations of the Sentinel-1D's Launch and Early Orbit Phase (LEOP). This is the first time an ESOC-operated satellite is launching on Ariane 6.[16]
In early October 2025, the satellite has undergone functional tests and had its AIS antenna assemblies integrated.[17] The spacecraft Flight Readiness Review took place in mid-October, paving the way for fuelling. By 20 October, the spacecraft was fuelled and on 24 October, it has been encapsulated inside the Ariane 6 fairing.[18][19] The launch is planned for 4 November 2025.[20]
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References
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