Zenit-4M Credit - © Mark Wade

Planning began in mid-1967 for military systems to enter service through 1975. These included this improved model of Zenit-4 high resolution reconnaissance satellite, accepted into service in 1971. The photo system Ftor-6 replaced the Ftor-4 of the Zenit-4. The Zenit-4M was the first of the series equipped with a restartable engine which allowed adjustment of the orbit during the mission. High resolution, maneuverable; Typical orbital profile: inclination 65 degrees with altitude of 203-290 km; maneuvers to 178-312 km altitude. Also inclinations of 51.6 degrees; 72.8 degrees; 81.3 degrees. Designed duration: 13 days. Transmission frequencies observed in West: 19.150 PCM telemetry or 19.300 Morse-code.

Typical orbit: 196 x 293 km, 66.1 deg inclinaton. Mass: 6,300 kg (13,800 lb).

• 1964 June 18 - USSR five-year military space plan issued. -
  Ministry of Defence Decree 'On military space programs for 1964-69, including the R spaceplane' was issued. The decree was issued by Defence Ministry Marshal Rodiono Yakovlevich Malinovksiy. Included in this plan were new versions of the automatic Zenit, Morya-1 (US series) spacecraft, the Spiral spaceplane, the Soyuz-R manned combat spacecraft, and others. Chelomei's Raketoplan spaceplane was cancelled.

• 1968 October 31 - Cosmos 251 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 201 km (124 mi). Apogee: 255 km (158 mi). Inclination: 64.90 deg. Period: 89.00 min. Duration: 18.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; deployed radio astronony and gamma ray experiment capsule; maneuverable.

• 1969 January 23 - Cosmos 264 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 209 km (129 mi). Apogee: 295 km (183 mi). Inclination: 69.90 deg. Period: 89.60 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; carried radio astronony and gamma ray experiments; maneuverable.

• 1969 April 23 - Cosmos 280 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 207 km (128 mi). Apogee: 250 km (150 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; carried weather experiments; maneuverable.

• 1970 April 15 - Cosmos 333 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 219 km (136 mi). Apogee: 239 km (148 mi). Inclination: 81.30 deg. Period: 89.10 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1970 August 29 - Cosmos 360 - Launch Site: Baikonur. Launch Complex: LC31. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 207 km (128 mi). Apogee: 287 km (178 mi). Inclination: 65.00 deg. Period: 89.40 min. Duration: 10.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable; deployed capsule.

• 1970 September 8 - Cosmos 361 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 195 km (121 mi). Apogee: 338 km (210 mi). Inclination: 72.80 deg. Period: 89.80 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1970 October 9 - Cosmos 370 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 203 km (126 mi). Apogee: 280 km (170 mi). Inclination: 64.90 deg. Period: 89.30 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1970 October 30 - Cosmos 376 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 207 km (128 mi). Apogee: 286 km (177 mi). Inclination: 65.40 deg. Period: 89.40 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1970 December 15 - Cosmos 386 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 222 km (137 mi). Apogee: 242 km (150 mi). Inclination: 65.00 deg. Period: 89.10 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 January 12 - Cosmos 390 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 196 km (121 mi). Apogee: 276 km (171 mi). Inclination: 65.00 deg. Period: 89.20 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 February 18 - Cosmos 396 - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 204 km (126 mi). Apogee: 285 km (177 mi). Inclination: 65.40 deg. Period: 89.40 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 March 3 - Cosmos 399 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 200 km (120 mi). Apogee: 285 km (177 mi). Inclination: 64.90 deg. Period: 89.30 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 March 27 - Cosmos 401 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 185 km (114 mi). Apogee: 290 km (180 mi). Inclination: 72.80 deg. Period: 89.30 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 April 14 - Cosmos 406 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 217 km (134 mi). Apogee: 246 km (152 mi). Inclination: 81.30 deg. Period: 89.20 min. Duration: 10.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 May 18 - Cosmos 420 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,000 kg (13,200 lb). Perigee: 199 km (123 mi). Apogee: 257 km (159 mi). Inclination: 51.80 deg. Period: 89.00 min. Duration: 11.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 May 28 - Cosmos 424 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 204 km (126 mi). Apogee: 282 km (175 mi). Inclination: 65.40 deg. Period: 89.40 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 June 25 - Zenit-4M - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Vehicle: Soyuz. FAILURE: Failure.
  Photo surveillance mission.

• 1971 July 20 - Cosmos 429 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,000 kg (13,200 lb). Perigee: 202 km (125 mi). Apogee: 252 km (156 mi). Inclination: 51.80 deg. Period: 89.00 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 July 23 - Cosmos 430 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 199 km (123 mi). Apogee: 305 km (189 mi). Inclination: 65.40 deg. Period: 89.50 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 August 5 - Cosmos 432 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,000 kg (13,200 lb). Perigee: 200 km (120 mi). Apogee: 252 km (156 mi). Inclination: 51.70 deg. Period: 89.10 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 August 19 - Zenit-4M - Launch Site: Baikonur. Launch Complex: LC31. Launch Vehicle: Soyuz. FAILURE: Failure.
  High resolution photo reconnaissance mission.

• 1971 September 28 - Cosmos 441 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 207 km (128 mi). Apogee: 266 km (165 mi). Inclination: 65.00 deg. Period: 89.20 min. Duration: 12.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 September 29 - Cosmos 442 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 182 km (113 mi). Apogee: 313 km (194 mi). Inclination: 72.90 deg. Period: 89.50 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 October 14 - Cosmos 452 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 193 km (119 mi). Apogee: 248 km (154 mi). Inclination: 64.90 deg. Period: 89.00 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 November 2 - Cosmos 454 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 204 km (126 mi). Apogee: 346 km (214 mi). Inclination: 65.40 deg. Period: 90.00 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 November 19 - Cosmos 456 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 178 km (110 mi). Apogee: 304 km (188 mi). Inclination: 72.90 deg. Period: 89.30 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 December 6 - Cosmos 463 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 202 km (125 mi). Apogee: 272 km (169 mi). Inclination: 64.00 deg. Period: 89.20 min. Duration: 5.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 December 10 - Cosmos 464 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 180 km (110 mi). Apogee: 311 km (193 mi). Inclination: 72.00 deg. Period: 89.40 min. Duration: 6.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1971 December 16 - Cosmos 466 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 175 km (108 mi). Apogee: 375 km (233 mi). Inclination: 64.00 deg. Period: 90.00 min. Duration: 11.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 January 12 - Cosmos 471 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 201 km (124 mi). Apogee: 316 km (196 mi). Inclination: 65.00 deg. Period: 89.70 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 February 16 - Cosmos 474 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 177 km (109 mi). Apogee: 325 km (201 mi). Inclination: 64.90 deg. Period: 89.50 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 March 15 - Cosmos 478 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 176 km (109 mi). Apogee: 282 km (175 mi). Inclination: 65.00 deg. Period: 89.00 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 April 3 - Cosmos 483 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 209 km (129 mi). Apogee: 313 km (194 mi). Inclination: 72.80 deg. Period: 89.70 min. Duration: 12.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 April 14 - Cosmos 486 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 178 km (110 mi). Apogee: 234 km (145 mi). Inclination: 81.30 deg. Period: 88.60 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 May 25 - Cosmos 491 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 177 km (109 mi). Apogee: 268 km (166 mi). Inclination: 64.90 deg. Period: 88.90 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 June 9 - Cosmos 492 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 204 km (126 mi). Apogee: 323 km (200 mi). Inclination: 64.90 deg. Period: 89.70 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 June 23 - Cosmos 495 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 202 km (125 mi). Apogee: 277 km (172 mi). Inclination: 65.40 deg. Period: 89.20 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 July 6 - Cosmos 499 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,000 kg (13,200 lb). Perigee: 204 km (126 mi). Apogee: 283 km (175 mi). Inclination: 51.80 deg. Period: 89.30 min. Duration: 11.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 July 19 - Cosmos 503 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 202 km (125 mi). Apogee: 288 km (178 mi). Inclination: 65.40 deg. Period: 89.40 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 August 2 - Cosmos 513 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 172 km (106 mi). Apogee: 307 km (190 mi). Inclination: 64.90 deg. Period: 89.30 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 September 2 - Zenit-4M - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Vehicle: Soyuz. FAILURE: Failure.
  High resolution photo reconnaissance mission.

• 1972 September 16 - Cosmos 519 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,000 kg (13,200 lb). Perigee: 207 km (128 mi). Apogee: 360 km (220 mi). Inclination: 71.30 deg. Period: 90.20 min. Duration: 10.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 October 4 - Cosmos 522 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 212 km (131 mi). Apogee: 309 km (192 mi). Inclination: 72.00 deg. Period: 89.70 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1972 December 14 - Cosmos 538 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 205 km (127 mi). Apogee: 283 km (175 mi). Inclination: 65.40 deg. Period: 89.40 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 January 11 - Cosmos 543 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 191 km (118 mi). Apogee: 274 km (170 mi). Inclination: 64.90 deg. Period: 89.20 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 February 8 - Cosmos 548 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 205 km (127 mi). Apogee: 300 km (180 mi). Inclination: 65.40 deg. Period: 89.60 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 March 6 - Cosmos 551 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 206 km (128 mi). Apogee: 296 km (183 mi). Inclination: 65.00 deg. Period: 89.50 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 May 23 - Cosmos 560 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 203 km (126 mi). Apogee: 314 km (195 mi). Inclination: 72.90 deg. Period: 89.70 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 June 6 - Cosmos 563 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 206 km (128 mi). Apogee: 298 km (185 mi). Inclination: 65.40 deg. Period: 89.50 min. Duration: 12.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 June 10 - Cosmos 572 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,000 kg (13,200 lb). Perigee: 206 km (128 mi). Apogee: 281 km (174 mi). Inclination: 51.70 deg. Period: 89.30 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 July 4 - Zenit-4M - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Vehicle: Soyuz. FAILURE: Failure.
  High resolution photo reconnaissance mission.

• 1973 July 25 - Cosmos 577 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 175 km (108 mi). Apogee: 309 km (192 mi). Inclination: 65.40 deg. Period: 89.30 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 August 21 - Cosmos 579 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 171 km (106 mi). Apogee: 270 km (160 mi). Inclination: 65.40 deg. Period: 88.90 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 August 24 - Cosmos 581 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 177 km (109 mi). Apogee: 276 km (171 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 September 6 - Cosmos 584 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 205 km (127 mi). Apogee: 336 km (208 mi). Inclination: 72.90 deg. Period: 90.00 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 October 10 - Cosmos 598 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 208 km (129 mi). Apogee: 334 km (207 mi). Inclination: 72.80 deg. Period: 89.90 min. Duration: 6.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 October 16 - Cosmos 600 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 205 km (127 mi). Apogee: 340 km (210 mi). Inclination: 72.80 deg. Period: 90.00 min. Duration: 7.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 October 27 - Cosmos 603 - Launch Site: Plesetsk. Launch Complex: -. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 205 km (127 mi). Apogee: 357 km (221 mi). Inclination: 72.90 deg. Period: 90.10 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1973 November 21 - Cosmos 609 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 175 km (108 mi). Apogee: 335 km (208 mi). Inclination: 69.90 deg. Period: 89.60 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1974 February 12 - Cosmos 632 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 176 km (109 mi). Apogee: 303 km (188 mi). Inclination: 65.00 deg. Period: 89.30 min. Duration: 14.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.

• 1974 July 25 - Cosmos 667 - Launch Site: Baikonur. Launch Complex: LC1. Launch Vehicle: Soyuz. Mass: 6,300 kg (13,800 lb). Perigee: 176 km (109 mi). Apogee: 320 km (190 mi). Inclination: 65.00 deg. Period: 89.50 min. Duration: 13.00 days.
  High resolution photo reconnaissance satellite; returned film capsule; maneuverable.