Power Anomaly Forces End of Mission for Copernicus Sentinel-1B Satellite

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On December 23, 2021, Copernicus Sentinel-1B experienced an anomaly related to the instrument electronics power supply provided by the satellite platform, leaving it unable to deliver radar data. Spacecraft operators and engineers have been working tirelessly since then to rectify the issue. Unfortu

nately, despite all concerted efforts, ESA and the European Commission announce that it is the end of the mission for Sentinel-1B. Copernicus Sentinel-1A remains fully operational and plans are in force to launch Sentinel-1C as soon as possible.

“Meanwhile, Copernicus Contributing Mission data, including from European New Space companies, will continue to be used to support the most critical Copernicus Services products that are affected. The preparations for the de-orbiting of Sentinel-1B satellite are an example of our joint commitment, for the European Union and ESA, to clean and responsible space, using the EU’s Space Surveillance and Tracking capabilities.

After the Sentinel-1B launch in April 2016, with the mission comprising two identical satellites orbiting 180° apart, the mission was able to image the planet with a maximum repeat frequency of six days, down to daily coverage at high latitudes. As Europe’s center of excellence for mission operations, the European Space Operations Centre is home to the engineers who control spacecraft in orbit, manage our global tracking station network, and design and build the systems on ground that support missions in space. Since 1967, over 60 satellites belonging to ESA and its partners have been flown from Darmstadt, Germany. Credit: ESA/J.Mai – CC BY-SA 3.

 

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