The DS-MG satellites were a series of Soviet technolgy demonstration satellites launched as part of the Dnepropetrovsk Sputnik program. October 24, 1964 at 05:17 UTC · Launch Successful Kosmos-2I — Soviet Space Program, to Low Earth Orbit Mayak-2, Kapustin Yar, Russian Federation The world's 374th orbital launch attempt, and 81st of 1964. Data: Launch Library 2, The Space Devs. Image via The Space Devs.