I try to use a pair of Sentinel-1 images in SNAP 2.0 ESA software to DEM generation.
I use following commands:
- S1 TOPS corregistration
- Apply-Orbit-File and Sentinel Precise (Auto Download) option.
Download is done; but I have the following message: “Apply-Orbit-File: No valid orbit file found …”
In my case “Polynomial Degree” is 3 and “Do not fail if new orbit file is not found” is unchecked.
What can I do to use Apply-Orbit-File and Sentinel Precise (Auto Download) option ?
Thanks a lot. Franco