Dec. 17, 2025: After a software fix issued on Dec. 9, 2025, all DSWx-S1 data going forward resumed normalcy. OPERA is in the process of replacing and reproducing impacted DSWx-S1 between May 20, 2025, and Dec 9, 2025, and expect to complete these tasks by January 2026.
NASA's Observational Products for End-Users from Remote Sensing Analysis (OPERA) project has discovered a processing error affecting DSWx-S1 data products generated from May 2025 onwards. This error is causing Sentinel-1A (S1A) and Sentinel-1C (S1C) data to be incorrectly mixed into a single product.
This issue is currently under investigation by the OPERA team. As a precaution, the OPERA team has temporarily stopped the production of DSWx-S1 while they resolve this matter. We will provide more information as soon as it becomes available. We apologize for any inconvenience this may cause.