Almost simultaneous with the Tellura-EKO proposal came the Salyut Design Bureau's concept of a slightly less sophisticated spacecraft known as Ecologia. With roughly the same physical characteristics (mass of 21 metric tons, payload of 8-9 metric tons, average power of 3 kW), Ecologia was designed to operate at altitudes of 350-450 km for 3-5 years. Orbital inclinations of 51 degrees, 65 degrees, or 73 degrees are possible. The original Ecologia prospectus indicated that a launch by 1993 was possible, however, without foreign investment the program is unlikely to be fulfilled (Reference 724).
724. "'Salyut' Design Bureau of Experimental Engineering Industry NPO", undated prospectus for the Proton launch vehicle and three conceptual spacecraft.