Duplicate processing results for OPERA RTC files? #258
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While searching fore OPERA RTC files, I see duplicate results where the metadata is the same except for the Here is an example pair: Diff between the metadata: |
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Answered by
asjohnston-asf
Jan 20, 2024
Replies: 2 comments
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We've observed an issue with how the OPERA processor identifies newly available Sentinel-1 SLCs that causes some SLCs to be processed multiple times. As many as 20% of OPERA RTC and CSLC scenes in our archive are duplicates that only differ by the processing date. Both scenes are valid data products, but you'll likely want to adjust your searches to ignore these duplicates. I've asked the ASF and JPL are investigating and we'll provide updates here as we can. |
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Answer selected by
tylere
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We've developed some content for a NISAR Early Adopters workshop that includes notebooks for downloading OPERA S1-RTC and S1-CSLC. We also encountered this issue and added some code to filter for the most recently processed products when encountering duplicates. It can be found here: |
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We've observed an issue with how the OPERA processor identifies newly available Sentinel-1 SLCs that causes some SLCs to be processed multiple times. As many as 20% of OPERA RTC and CSLC scenes in our archive are duplicates that only differ by the processing date.
Both scenes are valid data products, but you'll likely want to adjust your searches to ignore these duplicates. I've asked the
asf_searchteam to consider providing an example if time allows.ASF and JPL are investigating and we'll provide updates here as we can.