Legenda (satellite system)

Legenda, or the MKRC Legenda system, is a Soviet satellite targeting system mated to the SS-N-19 missile. It consisted of the US-P SIGINT satellites and the US-A Radar Ocean reconnaissance satellites, which were nuclear powered.
Legenda is now believed to be non-functional after the US-A sats were deactivated. It is being replaced by the Liana system with three operational satellites as of October 2018.