[7] A single aft-mounted docking port was intended for use by Soyuz spacecraft carrying cosmonauts to work aboard the station.

[8] The station was equipped with 32 attitude control thrusters, as well as two RD-0225 engines, each capable of generating 3.9 kilonewtons (880 lbf) of thrust, for orbital manoeuvres.

[9] Upon reaching orbit, Salyut 2 was assigned the International Designator 1973-017A, whilst NORAD gave it the Satellite Catalog Number 06398.

When First Secretary of the Communist Party of Cuba Fidel Castro was in the Soviet Union as part of a whirlwind tour in 1972, General Secretary of the Communist Party of the Soviet Union Leonid Brezhnev brought Fidel Castro to the Gagarin Cosmonaut Training Centre.

[12] Fidel Castro was photographed inside both the Soyuz docking trainer[13][better source needed] and the Salyut-2 (OPS-1/Almaz) military space station.