).
Otherwise, this is what tools like AGI's STK are made for computing:
https://www.agi.com/productsIf you know what the coverage should be, and want to visualize what is covered based on the geometry of the scene (so for example, taking into account other moving objects, the terrain/mountains etc.) the Analytics SDK, which is a commercial version of CesiumJS, has that ability you can read about here:
https://cesium.com/ion-sdk/