On January 30, 2020, an amateur satellite watcher tweeted, “Something to potentially watch.” Cosmos 2542, a Russian inspection satellite, was “loitering around” USA 245, an American spy satellite, and, he wrote, “as I'm typing this, that offset distance shifts between 150 and 300 kilometers.” USA 245 then adjusted its orbit to get away from Cosmos 2542, which in turn tweaked its own orbit to get closer again. “This is all circumstantial evidence,” the watcher wrote, but “a hell of a lot of circumstances make it look like a known Russian inspection satellite is currently inspecting a known U.S. spy satellite.”