As previously reported, a major incident occurred on a data centre providing data access infrastructure services led to the temporal interruption of the publication of fresh Sentinel-1 and Sentinel-3 data on 10 March 2021 01:10 UTC.

An incident occurred on 10 March 2021 at 01:00 UTC on the infrastructure hosting the data access services.

Learn more about the Copernicus Sentinel-1 mission in our new infographic. The infographic summarises the radar imaging constellation and its achievements.

ESA reminds you that the questionnaire for the User Satisfaction Survey remains online until 15 March 2021.

The questionnaire is an opportunity to provide your feedback related to your experiences in accessing and using EO data and related information and services from the Copernicus Sentinel Missions during 2020.

Users are kindly informed that the following page providing Sentinel-1 data quality information, processor auxiliary files, quality disclaimers and information on the processor versions: is replaced by

Regarding access to Copernicus Sentinel-1 orbit files and processor auxiliary files, users are kindly invited to note that:

Due to an anomaly that occurred at the satellite and instrument level, the Near Real Time and Non Time Critical Copernicus Sentinel-3A OLC Level 1 and Level 2 products starting from approximate sensing time 00:30:00 UTC on 5 March 2021 will be missed.

On 6 February 2021, a huge windstorm from the Sahara reached large parts of the Alps and Pyrenees, giving the snow and surrounding area a sepia coloured nuance, and creating a Mars-like atmosphere—Copernicus Sentinel-3 caught it in real-time, adding to its ability of supplying aerosol estimates.

Copernicus Sentinel-1A was unavailable on 2 March 2021 between 05:34 and 11:52 UTC, due to a Payload Data Handling and Transmission (PDHT) sub-system software anomaly.

ESA is pleased to announce that the Copernicus Sentinel-5P Chemistry Transport Model TM5 auxiliary files, the CTMFCT/CTMANA files are now available via the Sentinel-5P Hub.

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Calling on all interested users of Sentinel data, who would like to submit their results, turning their experiences into 'success stories'.

If you have a good story to tell, of how any of the Sentinel satellites are producing data that bring benefit to your work and/or to society, please contact the Sentinel Online Editors at: with your proposals.