I am processing Sentinel 1 data with ENVI SARscape (can process also with gamma if it helps me) for earthquake inversion. Due to the fact that I want to use ascending and descending acquisition, I am working with the earth coordination system and not the satellite one. Therefore I need to know the incidence angle of the ascending and descending track for specific geographic coordination points.
So I think my question is: How do I convert the geographic coordination to the satellite coordination system (for ascending or descending)?
After knowing the coordination of a point in the satellite coordination system calculating the incidence angle is clear.