"Designed to measure variations in the Earth?s gravitational field, to build a?high-precision geodetic network in the geocentric coordinate system, as well as study continental plate motion, tides, the Earth?s rotation and coordinates of poles."
Military communications - designed to replace Molniya and Parus spacecraft.
2 surveillance of satellites or LEO.
Will provide multiple Russian government agencies with black-and-white and color observations of Earth.