The man who spies on spy satellites, watching big brother watching us
By: +David Herron; Date: June 15, 2018
The satellites are visible from the ground, and using a "telescope" we can capture some details.
Of course there are plenty of satellites that can be photographed, not just spy satellites. The task of photographing any of these satellites is the same. You determine the orbital path of the object you're interested in, and get the equipment to track that orbital path, and finally connect a camera to that equipment to take pictures.
Some websites exist containing data on satellite orbits - https://heavens-above.com/
Web-based astronomy calculator - http://www.calsky.com/