Part of the orbital station "Salyut-6", to a connecting node of which is fixed a space radio telescope KRT-10.
Text: "For the 175-day space flight the crew completed a broad program of scientific-technical and medical-biological research and experiments; for the first time made bilateral of television; using radio telescope KRT-10 conducted scientific observations; produced by docking with the "Progress-5", "Progress-6", "Progress-7" and "Soyuz-34"; made repairs at the station and in space".