I see two issues:
1) With the new location of Goes-15 the background mapping needs to be
changed as well. Will it be possible for you to include the new mapping into
2) Another thing that I noticed is that the background mapping of Goes-17
does not correspond to the boundaries. Although most of the US/LatAm is
accurately mapped, the western coast is quite off (as is the less important
eastern edge of the image at Africa). See attached image.
I think that issue 1 is at the base of the inconsistency I see in the World
View of GeoSatSignal (1156).