There Are Giant Camera Resolution Test Charts Scattered Across the US
"Even satellites can utilize the charts. Here’s a chart as seen by the satellite used for Google Maps"It's not clear that that is a satellite photograph. Just because it was taken from above it doesn't mean a satellite did it. Mapping services (such as a Google's) do a disservice to call all this overhead photography 'satellite'. It's the sort of looseness that causes people to think cellular telephones also talk to satellites.