モルニヤ軌道
JUMPSEAT ELINT satellites, using a Molniya orbit, started launching in 1975. Their launch parameters were very similar to the SDS communications satellites used for connectivity in high latitudes, and individual launches could easily have been either JUMPSEAT or SDS. While the primary mission of JUMPSEAT constellations appeared to be microwave COMINT, they may also have had ELINT capabilities.