We don't know exactly what Kosmos 2542 is capable of, but Harrison speculates it could determine the aperture and resolution of the cameras on USA 245. If it has a radio-frequency probe, it could listen for faint signals from USA 245 to deduce what kinds of computer processes are happening onboard, when it’s operating, and when it is taking pictures.
Monday, February 10, 2020
Satellites Snooping On Satellites
"A Russian satellite is probably stalking a US spy satellite in orbit":
