Submission + - Young Journalists Drone, Expose Russian Ships Off Dutch-German Coasts (digitaldigging.org)
The guys not only analyzed thousands of data points, but also used leaked documents, established connections with sources in European agencies, and drove 2,500 km across three countries chasing one of the ships – even launching their own drone to fly over it.
At the end of the article, there’s precise data on the vessels, so you can follow them yourself.