Technology test version of the original DS light satellite design. Primary mission was to test launch vehicle.

Mass: 300 kg (660 lb). Associated Launch Vehicle: Kosmos 63S1.

• 1960 August 8 - Kosmos 63S1 small booster and DS small satellites authorised. - Launch Vehicle: Kosmos 2.

  Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On the Creation of the Rocket-Carrier 63S1 Based on the R-12 Missile, and the Development and Launch of Small Artificial Satellite--start of work on launcher and satellites at OKB-586'

• 1961 October 27 - DS-2 s/n 1 - Program: DS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 2. FAILURE: First stage failed. Mass: 300 kg (660 lb).

  Failed first attempt to launch a DS-1 technology test version of the DS satellite atop a Cosmos 63S1 small launch vehicle. The boster didn't reach orbital velocity due to the failure of an acceleration integrator in the velocity regulation control.

• 1961 December 21 - DS-1 s/n 1 - Program: DS. Launch Site: Kapustin Yar. Launch Vehicle: Kosmos 2. FAILURE: Second stage failed 354 seconds after launch. Mass: 300 kg (660 lb).

  Second attempted launch of Cosmos 63S1 small launch vehicle 2LK with a DS-1 satgellite. This time the new second stage failed. The oxidiser was exhausted before orbital velocity could be reached due to uncontrolled pumping of liquid oxygen into the combustion chamber. The upper stage and satellite impacted in the Kurile Islands. An Expert Commission headed by Ustinov was convened to review the program.

• 1963 October 1 - Kosmos scientific satellites authorised. - Launch Vehicle: Kosmos 2.

  All-Russian Council of the National Economy (VSNKh) Decree 'Program for Space Investigations With Small Artificial Satellite, Launched on the Kosmos -- On course of work on small satellites at OKB-586' was issued.