TKS manned ferry spacecraft from the cancelled Almaz OPS-4 mission. Flown unmanned to the Salyut 7 space station. Docked with Salyut 7 on 4 March 1983. Separated from Salyut 7 on 14 August. The VA re-entry capsule separated and the space station deorbited itself on September 19, 1983 at 0:28 GMT. The VA capsule continued in space for four more days, demonstrating autonomous flight, before successfully re-entering on 23 August 1983. Returned 350 kg of material from the station.

Maneuver Summary:

195 km X 242 km orbit to 196 km X 262 km orbit. Delta V: 5 m/s

191 km X 253 km orbit to 191 km X 253 km orbit. Delta V: 1 m/s

191 km X 259 km orbit to 193 km X 396 km orbit. Delta V: 39 m/s

193 km X 396 km orbit to 259 km X 349 km orbit. Delta V: 32 m/s

259 km X 349 km orbit to 280 km X 314 km orbit. Delta V: 16 m/s

278 km X 313 km orbit to 260 km X 313 km orbit. Delta V: 5 m/s

260 km X 313 km orbit to 325 km X 327 km orbit. Delta V: 22 m/s

Maneuvers docked with Salyut 7:

318 km X 320 km orbit to 296 km X 319 km orbit. Delta V: 6 m/s

294 km X 316 km orbit to 293 km X 305 km orbit. Delta V: 3 m/s

282 km X 295 km orbit to 291 km X 333 km orbit. Delta V: 12 m/s

290 km X 333 km orbit to 329 km X 341 km orbit. Delta V: 13 m/s

315 km X 328 km orbit to 326 km X 337 km orbit. Delta V: 5 m/s

Maneuvers after undocking with Salyut 7:

313 km X 326 km orbit to 326 km X 348 km orbit. Delta V: 9 m/s

322 km X 338 km orbit to 288 km X 337 km orbit. Delta V: 9 m/s

287 km X 336 km orbit to 90 km X 287 km orbit. Delta V: 72 m/s

Total Delta V: 177/249 m/s

Officially: Testing of onboard systems, appliances and construction units of the satellite in various flight regimes, including joint flight with the Salyut-7 station.

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