The DS-U2-V satellites were Soviet scientific satellites launched as part of the Dnepropetrovsk Sputnik program. They investigated ionospheric phenomenons.
These satellites measured the electron concentration in the vicinity of the spacecraft, as well as properties of the ionosphere in the path of coherent-wave propagation from the spacecraft to an observation point.
These satellites were all launched on Kosmos-2 boosters from Kapustin Yar.
Kosmos 93 was the first of these satellites to be launched on 19 October 1965. It was launched into an orbit with a perigee of 158 km, an apogee of 208 km, an inclination of 48.3°. On 3 January 1966 it decayed from orbit and reentered the atmosphere.
The second satellit was Kosmos 95, launched on 4 November 1965. It was operated in an orbit with a perigee of 147 km, an apogee of 205 km and an inclination of 48.4°. On 18 January 1966 it decayed from orbit and reentered the atmosphere.
A third satellit, Kosmos 197, followed on 26 December 1967. It was operated in an orbit with a perigee of 213 km, an apogee of 456 km and an inclination of 48.4°. On 30 January 1968 it decayed from orbit and reentered the atmosphere.
The fourth and last satellite, Kosmos 202, was launched on 20 February 1968. It was operated in an orbit with a perigee of 211 km, an apogee of 446 km and an inclination of 48.4°. On 24 March 1968 it decayed from orbit and reentered the atmosphere.
