OK new version is uploaded with the filter fix for skyaware.
I’ve added plots with a map overlay - it should work for coastlines globally. There aren’t any country borders available in the map data unfortunately. I will probably separate out the plotting for these so that I can make them switchable for those who are not near any coast to save a bit of processing time.
The script will download the map data and process it on first running, and thereafter use the cached data in the file world_10m.txt. Deleting this will cause the script to get the data again on the next run - it’s static data however so is unlikely to change.
Example plots:
