Dark strips in Sentinel-1 scenes

[yangej]

Dear @ghajduch,

Thanks for you explanation, it sounds reasonable. Now I also found information in the annotation files:

@ghajduch

this may have a side effect either on azimuth compression leading to the bright patch on bottom right (to be confirmed) or and FDBAQ error (to be confirmed).

However, regarding the bright patch showing on the bottom right, I was wondering if it is due to Radio Frequency Interference (RFI) as it appeared in other scenes covering this area (but different locations), for example the products 12 days earlier on 24 September 2023 with the absolute orbit number 050464 and data-take identifier 0613CC:

I compared them with other threads:

• Sentinel-1 SAR VV backscattering
• Artifacts in Sentinel-1 GRD data. How to detect/filter?
• Stripes near Copenhagen
• Sentinel-1 noise - can it be removed?
• Noise objects in Sentinel-1 GRD data

The first two show smaller coverage of the artifacts, which seems to be closer to what I encountered in this area (near Egypt). However, I am still not sure if that would be the reason or it was due to error on azimuth compression that you mentioned.