Radar accuracy.
I spent a very, very long time looking for certain specific characteristics of modern radar systems. They are usually left out of general descriptions because they aren't informative for the public. But they matter a great deal to us. So, at a distance of 100 km, the accuracy of a modern radar with an active electronically scanned array (AESA) is about 450 meters when measuring angular coordinates. Hooray!
I found data on angular and azimuthal resolution ))))