1975: Observation on satellite station of the Astronomical Council of the USSR in French Guiana no far from Kourou.The photographic tracking camera AFU-75  was installed in the pavilion, built by French specialists. 28 stations have been created in the framework of an international network of satellite observations in 1975 in Eurasia, Africa and South America. All these stations were equipped with cameras AFU-75 .  Established Astrosoviet network of satellite monitoring stations provided the basis for the implementation of the first global geodetic program Big Chord.