GAMMA Questions

Hello all,

I was using S1_coreg_TOPS script to run co-registration between two sets of Sentinel-1 data. When the program runs to S1_coreg_overlap it reports a No such file or directory error. The screen shot can be seen in the attachment. I have also attached S1_coreg_TOPS script. The rest of the script runs with no error reported. In this error, it was looking for a file end with *.diff20.phase.stat. I checked the rest of the script and cannot find any line indicating this file is generated.

I am really confused with this error. Any suggestions on what is going on?

Thanks,
Yi