# List of Kosmos satellites (251–500)

The designation Kosmos (Russian: Космос meaning Cosmos) is a generic name given to a large number of Soviet, and subsequently Russian, satellites, the first of which was launched in 1962. Satellites given Kosmos designations include military spacecraft, failed probes to the Moon and the planets, prototypes for crewed spacecraft, and scientific spacecraft. This is a list of satellites with Kosmos designations between 251 and 500.
* 1–250
* 251–500
* 501–750
* 751–1000
* 1001–1250
* 1251–1500
* 1501–1750
* 1751–2000
* 2001–2250
* 2251–2500
* 2501–2750
| Designation | Type | Launch date (GMT) | Carrier rocket | Function | Decay/Destruction* | Remarks |
| Kosmos 251 | Zenit-4M | 31 October 1968 09:14 | Voskhod 11A57 | Reconnaissance | 18 November 1968 | |
| Kosmos 252 | IS-A | 1 November 1968 00:27 | Tsyklon-2A 11K67 | ASAT test | 1 November 1968* | Intercepted and destroyed Kosmos 248 |
| Kosmos 253 | Zenit-2 | 13 November 1968 12:00 | Voskhod 11A57 | Reconnaissance | 18 November 1968 | |
| Kosmos 254 | Zenit-4 | 21 November 1968 12:10 | Voskhod 11A57 | Reconnaissance | 29 November 1968 | |
| Kosmos 255 | Zenit-2 | 29 November 1968 12:40 | Voskhod 11A57 | Reconnaissance | 7 December 1968 | |
| Kosmos 256 | Sfera | 30 November 1968 12:00 | Kosmos-3M 11K65M | Geodesy | in orbit | |
| Kosmos 257 | DS-P1-Yu | 3 December 1968 14:52 | Kosmos-2I 63SM | Radar target | 5 March 1969 | DS-P1-Yu #17, seventeenth of seventy nine DS-P1-Yu satellites |
| Kosmos 258 | Zenit-2 | 10 December 1968 08:25 | Voskhod 11A57 | Reconnaissance | 18 December 1968 | |
| Kosmos 259 | DS-U2-I | 14 December 1968 05:09 | Kosmos-2I 63SM | Ionospheric | 5 May 1969 | DS-U2-I #3, third of three DS-U2-I satellites |
| Kosmos 260 | Molniya-1Yu | 16 December 1968 09:15 | Molniya-M 8K78M | Communication | 9 July 1973 | |
| Kosmos 261 | DS-U2-GK | 19 December 1968 23:55 | Kosmos-2I 63SM | Studied air density in the upper atmosphere and polar auroras. | 12 February 1969 | Kosmos 261 marked the way to the Intercosmos Program. DS-U2-GK #1, first of two DS-U2-GK satellites |
| Kosmos 262 | DS-U2-GF | 26 December 1968 09:45 | Kosmos-2I 63SM | Studied VUV (Vacuum Ultraviolet Light) and Soft X-ray radiation. | 18 July 1969 | First satellite to study VUV and soft X-ray radiation. DS-U2-GF #1, only DS-U2-GF satellite |
| Kosmos 263 | Zenit-2 | 12 January 1969 12:10 | Voskhod 11A57 | Reconnaissance | 20 January 1969 | |
| Kosmos 264 | Zenit-4M | 23 January 1969 09:15 | Voskhod 11A57 | Reconnaissance | 5 February 1969 | |
| Kosmos 265 | DS-P1-Yu | 7 February 1969 13:59 | Kosmos-2I 63SM | Radar target | 1 May 1969 | DS-P1-Yu #21, eighteenth of seventy nine DS-P1-Yu satellites |
| Kosmos 266 | Zenit-2 | 25 February 1969 10:20 | Voskhod 11A57 | Reconnaissance | 5 March 1969 | |
| Kosmos 267 | Zenit-4 | 26 February 1969 08:30 | Voskhod 11A57 | Reconnaissance | 6 March 1969 | |
| Kosmos 268 | DS-P1-Yu | 5 March 1969 13:04 | Kosmos-2I 63SM | Radar target | 9 May 1970 | DS-P1-Yu #18, nineteenth of seventy nine DS-P1-Yu satellites |
| Kosmos 269 | Tselina-O | 5 March 1969 17:25 | Kosmos-3M 11K65M | ELINT | 21 October 1978 | |
| Kosmos 270 | Zenit-4 | 6 March 1969 12:15 | Voskhod 11A57 | Reconnaissance | 14 March 1969 | |
| Kosmos 271 | Zenit-4 | 15 March 1969 12:15 | Voskhod 11A57 | Reconnaissance | 23 March 1969 | |
| Kosmos 272 | Sfera | 17 March 1969 16:40 | Kosmos-3M 11K65M | Geodesy | in orbit | |
| Kosmos 273 | Zenit-2 | 22 March 1969 12:15 | Voskhod 11A57 | Reconnaissance | 30 March 1969 | |
| Kosmos 274 | Zenit-4 | 24 March 1969 10:10 | Voskhod 11A57 | Reconnaissance | 1 April 1969 | |
| Kosmos 275 | DS-P1-I | 28 March 1969 16:00 | Kosmos-2I 63SM | Radar target | 7 February 1970 | DS-P1-I #5, fifth of nineteen DS-P1-I satellites |
| Kosmos 276 | Zenit-4 | 4 April 1969 10:20 | Voskhod 11A57 | Reconnaissance | 11 April 1969 | |
| Kosmos 277 | DS-P1-Yu | 4 April 1969 13:00 | Kosmos-2I 63SM | Radar target | 6 July 1969 | DS-P1-Yu #20, twentieth of seventy nine DS-P1-Yu satellites |
| Kosmos 278 | Zenit-2 | 9 April 1969 13:00 | Voskhod 11A57 | Reconnaissance | 17 April 1969 | |
| Kosmos 279 | Zenit-4 | 15 April 1969 08:14 | Voskhod 11A57 | Reconnaissance | 23 April 1969 | |
| Kosmos 280 | Zenit-4M | 23 April 1969 09:55 | Voskhod 11A57 | Reconnaissance | 6 May 1969 | |
| Kosmos 281 | Zenit-2 | 13 May 1969 09:15 | Voskhod 11A57 | Reconnaissance | 21 May 1969 | |
| Kosmos 282 | Zenit-4 | 20 May 1969 08:40 | Voskhod 11A57 | Reconnaissance | 28 May 1969 | |
| Kosmos 283 | DS-P1-Yu | 27 May 1969 12:59 | Kosmos-2I 63SM | Radar target | 10 December 1969 | DS-P1-Yu #19, twenty-first of seventy nine DS-P1-Yu satellites |
| Kosmos 284 | Zenit-4 | 29 May 1969 06:59 | Voskhod 11A57 | Reconnaissance | 6 June 1969 | |
| Kosmos 285 | DS-P1-Yu | 3 June 1969 12:57 | Kosmos-2I 63SM | Radar target | 7 October 1969 | DS-P1-Yu #24, twenty-second of seventy nine DS-P1-Yu satellites |
| Kosmos 286 | Zenit-4 | 15 June 1969 08:59 | Voskhod 11A57 | Reconnaissance | 23 June 1969 | |
| Kosmos 287 | Zenit-2 | 24 June 1969 06:50 | Voskhod 11A57 | Reconnaissance | 2 July 1969 | |
| Kosmos 288 | Zenit-4 | 27 June 1969 06:59 | Voskhod 11A57 | Reconnaissance | 5 July 1969 | |
| Kosmos 289 | Zenit-4 | 10 July 1969 09:00 | Voskhod 11A57 | Reconnaissance | 15 July 1969 | |
| Kosmos 290 | Zenit-2 | 22 July 1969 12:30 | Voskhod 11A57 | Reconnaissance | 30 July 1969 | |
| Kosmos 291 | IS-M | 6 August 1969 05:40 | Tsyklon-2 11K69 | ASAT target | 8 September 1969 | Spacecraft propulsion system failed, interceptor not launched. |
| Kosmos 292 | Tsiklon | 13 August 1969 22:00 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 293 | Zenit-2M | 16 August 1969 11:59 | Voskhod 11A57 | Reconnaissance | 28 August 1969 | |
| Kosmos 294 | Zenit-4 | 19 August 1969 13:00 | Voskhod 11A57 | Reconnaissance | 27 August 1969 | |
| Kosmos 295 | DS-P1-Yu | 22 August 1969 14:14 | Kosmos-2I 63SM | Radar target | 1 December 1969 | DS-P1-Yu #29, twenty-fourth of seventy nine DS-P1-Yu satellites |
| Kosmos 296 | Zenit-4 | 29 August 1969 09:05 | Voskhod 11A57 | Reconnaissance | 6 September 1969 | |
| Kosmos 297 | Zenit-4 | 2 September 1969 11:00 | Voskhod 11A57 | Reconnaissance | 10 September 1969 | |
| Kosmos 298 | OGCh | 15 September 1969 16:05 | R-36O 8K69 | FOBS | 15 September 1969 | |
| Kosmos 299 | Zenit-4 | 18 September 1969 08:40 | Voskhod 11A57 | Reconnaissance | 22 September 1969 | |
| Kosmos 300 | E-8-5 | 23 September 1969 14:07 | Proton-K/D 8K82K | Lunar sample return | 27 September 1969 | |
| Kosmos 301 | Zenit-2 | 24 September 1969 12:15 | Voskhod 11A57 | Reconnaissance | 2 October 1969 | |
| Kosmos 302 | Zenit-4 | 17 October 1969 11:45 | Voskhod 11A57 | Reconnaissance | 25 October 1969 | |
| Kosmos 303 | DS-P1-Yu | 18 October 1969 10:00 | Kosmos-2I 63SM | Radar target | 23 January 1970 | DS-P1-Yu #28, twenty-fifth of seventy nine DS-P1-Yu satellites |
| Kosmos 304 | Tsiklon | 21 October 1969 12:49 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 305 | E-8-5 | 22 October 1969 14:09 | Proton-K/D 8K82K | Lunar sample return | 24 October 1969 | |
| Kosmos 306 | Zenit-2M | 24 October 1969 09:40 | Voskhod 11A57 | Reconnaissance | 5 November 1969 | |
| Kosmos 307 | DS-P1-Yu | 24 October 1969 13:01 | Kosmos-2I 63SM | Radar target | 30 December 1970 | DS-P1-Yu #22, twenty-sixth of seventy nine DS-P1-Yu satellites |
| Kosmos 308 | DS-P1-I | 4 November 1969 11:59 | Kosmos-2I 63SM | Radar target | 4 January 1970 | DS-P1-I #7, sixth of nineteen DS-P1-I satellites |
| Kosmos 309 | Zenit-2 | 12 November 1969 11:30 | Voskhod 11A57 | Reconnaissance | 20 November 1969 | |
| Kosmos 310 | Zenit-4 | 15 November 1969 08:30 | Voskhod 11A57 | Reconnaissance | 23 November 1969 | |
| Kosmos 311 | DS-P1-Yu | 24 November 1969 11:00 | Kosmos-2I 63SM | Radar target | 10 March 1970 | DS-P1-Yu #27, twenty-seventh of seventy nine DS-P1-Yu satellites |
| Kosmos 312 | Sfera | 24 November 1969 16:49 | Kosmos-3M 11K65M | Geodesy | in orbit | |
| Kosmos 313 | Zenit-2M | 3 December 1969 13:20 | Voskhod 11A57 | Reconnaissance | 15 December 1969 | |
| Kosmos 314 | DS-P1-Yu | 11 December 1969 12:58 | Kosmos-2I 63SM | Radar target | 22 March 1970 | DS-P1-Yu #30, twenty-eighth of seventy nine DS-P1-Yu satellites |
| Kosmos 315 | Tselina-O | 20 December 1969 03:26 | Kosmos-3M 11K65M | ELINT | 25 March 1979 | |
| Kosmos 316 | IS-A | 23 December 1969 09:25 | Tsyklon-2 11K69 | Boilerplate ASAT | 28 August 1970 | Debris recovered in the United States |
| Kosmos 317 | Zenit-4MK | 23 December 1969 13:50 | Voskhod 11A57 | Reconnaissance | 5 January 1970 | |
| Kosmos 318 | Zenit-2M | 9 January 1970 09:20 | Voskhod 11A57 | Reconnaissance | 21 January 1970 | |
| Kosmos 319 | DS-P1-Yu | 15 January 1970 13:39 | Kosmos-2I 63SM | Radar target | 1 July 1970 | DS-P1-Yu #25, twenty-ninth of seventy nine DS-P1-Yu satellites |
| Kosmos 320 | DS-MO | 16 January 1970 10:59 | Kosmos-2I 63SM | Technology | 10 February 1970 | DS-MO #3, second of two DS-MO satellites |
| Kosmos 321 | DS-U2-MG | 20 January 1970 20:20 | Kosmos-2I 63SM | Magnetospheric | 23 March 1970 | DS-U2-MG #1, first of two DS-U2-MG satellites |
| Kosmos 322 | Zenit-4 | 21 January 1970 12:00 | Voskhod 11A57 | Reconnaissance | 29 January 1970 | |
| Kosmos 323 | Zenit-4 | 10 February 1970 12:00 | Voskhod 11A57 | Reconnaissance | 18 February 1970 | |
| Kosmos 324 | DS-P1-Yu | 27 February 1970 17:24 | Kosmos-2I 63SM | Radar target | 23 May 1970 | DS-P1-Yu #32, thirtieth of seventy nine DS-P1-Yu satellites |
| Kosmos 325 | Zenit-2 | 4 March 1970 12:14 | Voskhod 11A57 | Reconnaissance | 12 March 1970 | |
| Kosmos 326 | Zenit-2 | 13 March 1970 08:00 | Voskhod 11A57 | Reconnaissance | 21 March 1970 | |
| Kosmos 327 | DS-P1-I | 18 March 1970 14:39 | Kosmos-2I 63SM | Radar target | 19 January 1971 | DS-P1-I #8, eighth of nineteen DS-P1-I satellites |
| Kosmos 328 | Zenit-4MK | 27 March 1970 11:45 | Voskhod 11A57 | Reconnaissance | 9 April 1970 | |
| Kosmos 329 | Zenit-2M | 3 April 1970 08:30 | Voskhod 11A57 | Reconnaissance | 15 April 1970 | |
| Kosmos 330 | Tselina-O | 7 April 1970 11:10 | Kosmos-3M 11K65M | ELINT | 12 June 1979 | |
| Kosmos 331 | Zenit-4 | 8 April 1970 10:15 | Voskhod 11A57 | Reconnaissance | 16 April 1970 | |
| Kosmos 332 | Tsiklon | 11 April 1970 17:00 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 333 | Zenit-4M | 15 April 1970 09:00 | Voskhod 11A57 | Reconnaissance | 28 April 1970 | |
| Kosmos 334 | DS-P1-Yu | 23 April 1970 13:20 | Kosmos-2I 63SM | Radar target | 9 August 1970 | DS-P1-Yu #31, thirty-first of seventy nine DS-P1-Yu satellites |
| Kosmos 335 | DS-U1-R | 24 April 1970 22:24 | Kosmos-2I 63SM | Atmospheric | 22 June 1970 | DS-U1-R #1, only DS-U1-R satellite |
| Kosmos 336 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | in orbit | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 337 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 338 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 339 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 340 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 341 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 342 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 343 | Strela-1M | 25 April 1970 17:09 | Kosmos-3M 11K65M | Communication | | Plesetsk launch. Orbits 1313 x 1554 km. Inclinations 74 degrees. First launch of 8 satellites on one rocket. Each satellite believed to be a spheroid about 1 meter long and 80 cm diameter. |
| Kosmos 344 | Zenit-2 | 12 May 1970 10:10 | Voskhod 11A57 | Reconnaissance | 20 May 1970 | |
| Kosmos 345 | Zenit-4 | 20 May 1970 09:20 | Voskhod 11A57 | Reconnaissance | 28 May 1970 | |
| Kosmos 346 | Zenit-4 | 10 June 1970 09:30 | Voskhod 11A57 | Reconnaissance | 17 June 1970 | |
| Kosmos 347 | DS-P1-Yu | 12 June 1970 09:30 | Kosmos-2I 63SM | Radar target | 7 November 1971 | DS-P1-Yu #35, thirty-third of seventy nine DS-P1-Yu satellites |
| Kosmos 348 | DS-U2-GK | 13 June 1970 04:59 | Kosmos-2I 63SM | Aeronomy, Auroral | 25 July 1970 | DS-U2-GK #2, second of two DS-U2-GK satellites |
| Kosmos 349 | Zenit-4 | 17 June 1970 12:59 | Voskhod 11A57 | Reconnaissance | 25 June 1970 | |
| Kosmos 350 | Zenit-2M | 26 June 1970 12:00 | Voskhod 11A57 | Reconnaissance | 8 July 1970 | |
| Kosmos 351 | DS-P1-Yu | 27 June 1970 07:39 | Kosmos-2I 63SM | Radar target | 13 October 1970 | DS-P1-Yu #38, thirty-fourth of seventy nine DS-P1-Yu satellites |
| Kosmos 352 | Zenit-4 | 7 July 1970 10:30 | Voskhod 11A57 | Reconnaissance | 15 July 1970 | |
| Kosmos 353 | Zenit-2M | 9 July 1970 13:35 | Voskhod 11A57 | Reconnaissance | 21 July 1970 | |
| Kosmos 354 | OGCh | 28 July 1970 22:00 | R-36O 8K69 | FOBS | 28 July 1970 | |
| Kosmos 355 | Zenit-4 | 7 August 1970 09:30 | Voskhod 11A57 | Reconnaissance | 15 August 1970 | |
| Kosmos 356 | DS-U2-MG | 10 August 1970 19:59 | Kosmos-2I 63SM | Magnetospheric | 2 October 1970 | DS-U2-MG #2, second of two DS-U2-MG satellites |
| Kosmos 357 | DS-P1-Yu | 19 August 1970 14:59 | Kosmos-2I 63SM | Radar target | 24 November 1970 | DS-P1-Yu #40, thirty-fifth of seventy nine DS-P1-Yu satellites |
| Kosmos 358 | Tsiklon | 20 August 1970 14:30 | Kosmos-3M 11K65M | Navigation | 26 June 1990 | Incorrect orbit |
| Kosmos 359 | 4V-1 | 22 August 1970 05:06 | Molniya-M 8K78M | Venus lander | 6 November 1970 | Baikonur launch. Failed to achieve escape velocity. Almost certainly intended to be Venera 8. Given the Kosmos number after failure. |
| Kosmos 360 | Zenit-4M | 29 August 1970 08:30 | Voskhod 11A57 | Reconnaissance | 8 September 1970 | |
| Kosmos 361 | Zenit-4M | 8 September 1970 10:30 | Voskhod 11A57 | Reconnaissance | 21 September 1970 | |
| Kosmos 362 | DS-P1-I | 16 September 1970 11:59 | Kosmos-2I 63SM | Radar target | 13 October 1971 | DS-P1-I #9, ninth of nineteen DS-P1-I satellites |
| Kosmos 363 | Zenit-2M | 17 September 1970 08:10 | Voskhod 11A57 | Reconnaissance | 29 September 1970 | |
| Kosmos 364 | Zenit-4MK | 22 September 1970 13:00 | Voskhod 11A57 | Reconnaissance | 2 October 1970 | |
| Kosmos 365 | OGCh | 25 September 1970 14:05 | R-36O 8K69M | FOBS | 25 September 1970 | |
| Kosmos 366 | Zenit-2M | 1 October 1970 08:20 | Voskhod 11A57 | Reconnaissance | 13 October 1970 | |
| Kosmos 367 | US-A | 3 October 1970 10:26 | Tsyklon-2 11K69 | Reconnaissance | 31 October 1970 | |
| Kosmos 368 | Zenit-2M | 8 October 1970 12:39 | Voskhod 11A57 | Zenit-2M | 14 October 1970 | |
| Kosmos 369 | DS-P1-Yu | 8 October 1970 15:10 | Kosmos-2I 63SM | Radar target | 22 January 1971 | DS-P1-Yu #42, thirty-sixth of seventy nine DS-P1-Yu satellites |
| Kosmos 370 | Zenit-4M | 9 October 1970 11:04 | Voskhod 11A57 | Reconnaissance | 22 October 1970 | |
| Kosmos 371 | Tsiklon | 12 October 1970 13:57 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 372 | Strela-2 | 16 October 1970 14:59 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 373 | IS-M | 20 October 1970 05:38 | Tsyklon-2 11K69 | ASAT target | 8 March 1980 | Intercepted by Kosmos 374 and Kosmos 375 in non-destructive tests. |
| Kosmos 374 | IS-A | 23 October 1970 04:42 | Tsyklon-2 11K69 | ASAT test | 23 October 1970* | Performed non-destructive intercept of Kosmos 373, self-destructed after completion of test |
| Kosmos 375 | IS-A | 30 October 1970 02:36 | Tsyklon-2 11K69 | ASAT test | 30 October 1970* | Performed non-destructive intercept of Kosmos 373, self-destructed after completion of test |
| Kosmos 376 | Zenit-4M | 30 October 1970 13:20 | Voskhod 11A57 | Reconnaissance | 12 November 1970 | |
| Kosmos 377 | Zenit-2M | 11 November 1970 09:20 | Voskhod 11A57 | Reconnaissance | 23 November 1970 | |
| Kosmos 378 | DS-U2-IP | 17 November 1970 18:20 | Kosmos-3M 11K65M | Ionospheric | 17 August 1972 | DS-U2-IP #1, only DS-U2-IP satellite |
| Kosmos 379 | LK-T2K | 24 November 1970 05:15 | Soyuz-L 11A511L | Uncrewed research test vehicle for Soviet human lunar program. | 21 September 1983 | Baikonur launch. Orbital inclination 52 degrees. Uncrewed lunar program research, similar to Kosmos 398 and Kosmos 434. |
| Kosmos 380 | DS-P1-Yu | 24 November 1970 10:59 | Kosmos-2I 63SM | Radar target | 17 June 1971 | DS-P1-Yu #26, thirty-seventh of seventy nine DS-P1-Yu satellites |
| Kosmos 381 | Ionosfernaya | 2 December 1970 04:00 | Kosmos-3M 11K65M | Craft studied the physical structure of the layers of the Ionosphere. | Expected to decay in 1,200 years. | Plesetsk launch. Orbit 971 x 1,013 km. Incliation 74 degrees. Study of Ionosphere covered almost the entire Earth's surface. |
| Kosmos 382 | Soyuz 7K-L1E | 2 December 1970 17:00 | Proton-K/D 8K82K | Test | in orbit | |
| Kosmos 383 | Zenit-4MK | 3 December 1970 13:55 | Voskhod 11A57 | Reconnaissance | 16 December 1970 | |
| Kosmos 384 | Zenit-2M | 10 December 1970 11:10 | Voskhod 11A57 | Reconnaissance | 22 December 1970 | |
| Kosmos 385 | Tsiklon | 12 December 1970 13:00 | Kosmos-3M 11K65M | Navigation | in orbit | Orbit was a nearly circular 1000 km. First Navsat Kosmos to be placed in this orbit. All previous Navsat Kosmos satellites had been placed in orbits just within 800 km orbit. Inclination 74 degrees. |
| Kosmos 386 | Zenit-4M | 15 December 1970 10:00 | Voskhod 11A57 | Reconnaissance | 28 December 1970 | |
| Kosmos 387 | Tselina-O | 16 December 1970 04:29 | Kosmos-3M 11K65M | ELINT | 19 January 1980 | |
| Kosmos 388 | DS-P1-Yu | 18 December 1970 09:39 | Kosmos-2I 63SM | Radar target | 10 May 1971 | DS-P1-Yu #43, thirty-eighth of seventy nine DS-P1-Yu satellites |
| Kosmos 389 | Tselina-D | 18 December 1970 16:15 | Vostok-2M 8A92M | ELINT | 24 November 2003 | |
| Kosmos 390 | Zenit-4M | 12 January 1971 09:30 | Voskhod 11A57 | Reconnaissance | 25 January 1971 | |
| Kosmos 391 | DS-P1-I | 14 January 1971 12:00 | Kosmos-2I 63SM | Radar target | 21 February 1972 | DS-P1-I #11, tenth of nineteen DS-P1-I satellites |
| Kosmos 392 | Zenit-2M | 21 January 1971 08:40 | Voskhod 11A57 | Reconnaissance | 2 February 1971 | |
| Kosmos 393 | DS-P1-Yu | 26 January 1971 12:44 | Kosmos-2I 63SM | Radar target | 16 June 1971 | DS-P1-Yu #34, thirty-ninth of seventy nine DS-P1-Yu satellites |
| Kosmos 394 | DS-P1-M | 9 February 1971 18:48 | Kosmos-3M 11K65M | ASAT target | 25 February 1971* | DS-P1-M #2, second of five DS-P1-M satellites, intercepted and destroyed by Kosmos 397 |
| Kosmos 395 | Tselina-O | 17 February 1971 21:09 | Kosmos-3M 11K65M | ELINT | 6 April 1980 | |
| Kosmos 396 | Zenit-4M | 18 February 1971 13:59 | Voskhod 11A57 | Reconnaissance | 3 March 1971 | |
| Kosmos 397 | IS-A | 25 February 1971 11:11 | Tsyklon-2 11K69 | ASAT test | 25 February 1971* | Intercepted and destroyed Kosmos 394 |
| Kosmos 398 | LK-T2K | 26 February 1971 05:06 | Soyuz-L 11A511L | Uncrewed research test vehicle for Soviet human lunar program. | 10 December 1995 | Baikonur launch. Orbital inclination 52 degrees. Uncrewed lunar program research, similar to Kosmos 379 and Kosmos 434. |
| Kosmos 399 | Zenit-4M | 3 March 1971 09:30 | Voskhod 11A57 | Reconnaissance | 17 March 1971 | |
| Kosmos 400 | DS-P1-M | 18 March 1971 21:45 | Kosmos-3M 11K65M | ASAT target | 4 April 1971* | DS-P1-M #3, third of five DS-P1-M satellites, intercepted and destroyed by Kosmos 404 |
| Kosmos 401 | Zenit-4M | 27 March 1971 10:59 | Voskhod 11A57 | Reconnaissance | 9 April 1971 | |
| Kosmos 402 | US-A | 1 April 1971 11:29 | Tsyklon-2 11K69 | Reconnaissance | 6 May 1971 | |
| Kosmos 403 | Zenit-2M | 2 April 1971 08:20 | Voskhod 11A57 | Reconnaissance | 14 April 1971 | |
| Kosmos 404 | IS-A | 4 April 1971 14:27 | Tsyklon-2 11K69 | ASAT test | 4 April 1971* | Intercepted and destroyed Kosmos 400 |
| Kosmos 405 | Tselina-D | 7 April 1971 07:10 | Vostok-2M 8A92M | ELINT | 3 November 2023 | |
| Kosmos 406 | Zenit-4M | 14 April 1971 08:00 | Voskhod 11A57 | Reconnaissance | 24 April 1971 | |
| Kosmos 407 | Strela-2 | 23 April 1971 11:30 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 408 | DS-P1-Yu | 24 April 1971 11:15 | Kosmos-2I 63SM | Radar target | 29 December 1971 | DS-P1-Yu #37, forty-first of seventy nine DS-P1-Yu satellites |
| Kosmos 409 | Sfera | 28 April 1971 14:35 | Kosmos-3M 11K65M | Geodesy | in orbit | |
| Kosmos 410 | Zenit-2M | 6 May 1971 06:20 | Voskhod 11A57 | Reconnaissance | 18 May 1971 | |
| Kosmos 411 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 412 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 413 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 414 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 415 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 416 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 417 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 418 | Strela-1M | 7 May 1971 14:20 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 419 | 3MS | 10 May 1971 16:58 | Proton-K/D 8K82K | Mars probe | 12 May 1971 | Failed to leave Earth orbit for Mars and was given a Kosmos number. Decayed into Earth atmosphere after 2 days. |
| Kosmos 420 | Zenit-4M | 18 May 1971 08:00 | Voskhod 11A57 | Reconnaissance | 29 May 1971 | |
| Kosmos 421 | DS-P1-Yu | 19 May 1971 10:20 | Kosmos-2I 63SM | Radar target | 8 November 1971 | DS-P1-Yu #48, forty-second of seventy nine DS-P1-Yu satellites |
| Kosmos 422 | Tsiklon | 22 May 1971 00:51 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 423 | DS-P1-Yu | 27 May 1971 11:59 | Kosmos-2I 63SM | Radar target | 26 November 1971 | DS-P1-Yu #47, forty-third of seventy nine DS-P1-Yu satellites |
| Kosmos 424 | Zenit-4M | 28 May 1971 10:30 | Voskhod 11A57 | Reconnaissance | 10 June 1971 | |
| Kosmos 425 | Tselina-O | 29 May 1971 03:49 | Kosmos-3M 11K65M | ELINT | 15 January 1980 | |
| Kosmos 426 | DS-U2-K | 4 June 1971 18:10 | Kosmos-3M 11K65M | Magnetospheric | 11 May 2002 | DS-U2-K #1, only DS-U2-K satellite |
| Kosmos 427 | Zenit-4MK | 11 June 1971 10:00 | Voskhod 11A57 | Reconnaissance | 23 June 1971 | |
| Kosmos 428 | Zenit-2M | 24 June 1971 07:59 | Voskhod 11A57 | Reconnaissance | 6 July 1971 | |
| Kosmos 429 | Zenit-4M | 20 July 1971 10:00 | Voskhod 11A57 | Reconnaissance | 2 August 1971 | |
| Kosmos 430 | Zenit-4M | 23 July 1971 11:00 | Voskhod 11A57 | Reconnaissance | 5 August 1971 | |
| Kosmos 431 | Zenit-2M | 30 July 1971 08:29 | Voskhod 11A57 | Reconnaissance | 11 August 1971 | |
| Kosmos 432 | Zenit-4M | 5 August 1971 10:00 | Voskhod 11A57 | Reconnaissance | 18 August 1971 | |
| Kosmos 433 | OGCh | 8 August 1971 23:45 | R-36O 8K69M | FOBS | 9 August 1971 | Baikonur launch. Orbit 159 x 259 km. Inclination 49 degrees. FOBS test satellite. Possibly recovered after slightly less than one orbit. |
| Kosmos 434 | LK-T2K | 12 August 1971 05:30 | Soyuz-L 11A511L | Uncrewed research test vehicle for USSR human lunar program. | 23 August 1981 | Baikonur launch. Orbital inclination 52 degrees. Uncrewed lunar program research, similar to Kosmos 379 and Kosmos 398. Kosmos 434 described as 'Experimental lunar cabin'. |
| Kosmos 435 | DS-P1-Yu | 27 August 1971 10:54 | Kosmos-2I 63SM | Radar target | 28 January 1972 | DS-P1-Yu #41, forty-fifth of seventy nine DS-P1-Yu satellites |
| Kosmos 436 | Tselina-O | 7 September 1971 01:15 | Kosmos-3M 11K65M | ELINT | 4 January 1980 | |
| Kosmos 437 | Tselina-O | 10 September 1971 03:37 | Kosmos-3M 11K65M | ELINT | 29 March 1980 | |
| Kosmos 438 | Zenit-4MK | 14 September 1971 13:00 | Voskhod 11A57 | Reconnaissance | 27 September 1971 | |
| Kosmos 439 | Zenit-2M | 21 September 1971 12:00 | Voskhod 11A57 | Reconnaissance | 2 October 1971 | |
| Kosmos 440 | DS-P1-I | 24 September 1971 10:30 | Kosmos-2I 63SM | Radar target | 29 October 1972 | DS-P1-I #10, eleventh of nineteen DS-P1-I satellites |
| Kosmos 441 | Zenit-4M | 28 September 1971 07:40 | Voskhod 11A57 | Reconnaissance | 10 October 1971 | |
| Kosmos 442 | Zenit-4M | 29 September 1971 11:30 | Voskhod 11A57 | Reconnaissance | 12 October 1971 | |
| Kosmos 443 | Zenit-2M | 7 October 1971 12:30 | Voskhod 11A57 | Reconnaissance | 19 October 1971 | |
| Kosmos 444 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 445 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 446 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 447 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 448 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 449 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 450 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 451 | Strela-1M | 13 October 1971 13:41 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 452 | Zenit-4M | 14 October 1971 09:00 | Voskhod 11A57 | Reconnaissance | 27 October 1971 | |
| Kosmos 453 | DS-P1-Yu | 19 October 1971 12:40 | Kosmos-2I 63SM | Radar target | 19 March 1972 | DS-P1-Yu #44, forty-sixth of seventy nine DS-P1-Yu satellites |
| Kosmos 454 | Zenit-4M | 2 November 1971 14:25 | Voskhod 11A57 | Reconnaissance | 16 November 1971 | |
| Kosmos 455 | DS-P1-Yu | 17 November 1971 11:09 | Kosmos-2I 63SM | Radar target | 9 April 1972 | DS-P1-Yu #54, forty-seventh of seventy nine DS-P1-Yu satellites |
| Kosmos 456 | Zenit-4M | 19 November 1971 12:00 | Voskhod 11A57 | Reconnaissance | 2 December 1971 | |
| Kosmos 457 | Sfera | 20 November 1971 18:00 | Kosmos-3M 11K65M | Geodesy | in orbit | |
| Kosmos 458 | DS-P1-Yu | 29 November 1971 10:09 | Kosmos-2I 63SM | Radar target | 20 April 1972 | DS-P1-Yu #53, forty-eighth of seventy nine DS-P1-Yu satellites |
| Kosmos 459 | DS-P1-M | 29 November 1971 17:30 | Kosmos-3M 11K65M | ASAT target | 3 December 1971* | DS-P1-M #5, fourth of five DS-P1-M satellites, intercepted and destroyed by Kosmos 462 |
| Kosmos 460 | Tselina-O | 30 November 1971 16:39 | Kosmos-3M 11K65M | ELINT | 5 March 1980 | |
| Kosmos 461 | DS-U2-MT | 2 December 1971 17:30 | Kosmos-3M 11K65M | Micrometeroids, Astronomy | 21 February 1979 | DS-U2-MT #1, only DS-U2-MT satellite |
| Kosmos 462 | IS-A | 3 December 1971 13:19 | Tsyklon-2 11K69 | ASAT test | 3 December 1971* | Intercepted and destroyed Kosmos 459 |
| Kosmos 463 | Zenit-4M | 6 December 1971 09:50 | Voskhod 11A57 | Reconnaissance | 11 December 1971 | |
| Kosmos 464 | Zenit-4M | 10 December 1971 11:00 | Voskhod 11A57 | Reconnaissance | 16 December 1971 | |
| Kosmos 465 | Tsiklon | 15 December 1971 04:31 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 466 | Zenit-4M | 16 December 1971 09:39 | Voskhod 11A57 | Reconnaissance | 27 December 1971 | |
| Kosmos 467 | DS-P1-Yu | 17 December 1971 10:39 | Kosmos-2I 63SM | Radar target | 18 April 1972 | DS-P1-Yu #45, forty-ninth of seventy nine DS-P1-Yu satellites |
| Kosmos 468 | Strela-2 | 17 December 1971 13:00 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 469 | US-A | 25 December 1971 11:30 | Tsyklon-2 11K69 | Reconnaissance | 9 February 1972 | |
| Kosmos 470 | Zenit-4MT | 27 December 1971 14:04 | Soyuz-M 11A511M | Reconnaissance | 6 January 1972 | |
| Kosmos 471 | Zenit-4M | 12 January 1972 09:59 | Voskhod 11A57 | Reconnaissance | 25 January 1972 | |
| Kosmos 472 | DS-P1-Yu | 25 January 1972 11:15 | Kosmos-2I 63SM | Radar target | 18 August 1972 | DS-P1-Yu #52, fiftieth of seventy nine DS-P1-Yu satellites |
| Kosmos 473 | Zenit-2M | 3 February 1972 08:40 | Voskhod 11A57 | Reconnaissance | 15 February 1972 | |
| Kosmos 474 | Zenit-4M | 16 February 1972 09:30 | Voskhod 11A57 | Reconnaissance | 29 February 1972 | |
| Kosmos 475 | Tsiklon | 25 February 1972 07:52 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 476 | Tselina-D | 1 March 1972 11:15 | Vostok-2M 8A92M | ELINT | 25 October 1991 | |
| Kosmos 477 | Zenit-2M | 4 March 1972 10:00 | Voskhod 11A57 | Reconnaissance | 16 March 1972 | |
| Kosmos 478 | Zenit-4M | 15 March 1972 13:00 | Voskhod 11A57 | Reconnaissance | 28 March 1972 | |
| Kosmos 479 | Tselina-O | 22 March 1972 20:30 | Kosmos-3M 11K65M | ELINT | 13 April 1980 | |
| Kosmos 480 | Sfera | 25 March 1972 02:20 | Kosmos-3M 11K65M | Geodesy | in orbit | |
| Kosmos 481 | DS-P1-Yu | 25 March 1972 10:39 | Kosmos-2I 63SM | Radar target | 2 September 1972 | DS-P1-Yu #46, fifty-first of seventy nine DS-P1-Yu satellites |
| Kosmos 482 | 4V-1 | 31 March 1972 04:02 | Molniya-M 8K78M | Venus lander | 5 May 1981 | Intended to be Venera 9 and was launched 4 days after Venera 8. Failed to leave Earth orbit and was given a Kosmos number. Came down over southern New Zealand |
| Kosmos 483 | Zenit-4M | 3 April 1972 10:15 | Voskhod 11A57 | Reconnaissance | 15 April 1972 | |
| Kosmos 484 | Zenit-2M | 6 April 1972 08:00 | Voskhod 11A57 | Reconnaissance | 18 April 1972 | |
| Kosmos 485 | DS-P1-Yu | 11 April 1972 11:04 | Kosmos-2I 63SM | Radar target | 30 August 1972 | DS-P1-Yu #58, fifty-second of seventy nine DS-P1-Yu satellites |
| Kosmos 486 | Zenit-4M | 14 April 1972 08:00 | Voskhod 11A57 | Reconnaissance | 27 April 1972 | |
| Kosmos 487 | DS-P1-Yu | 21 April 1972 11:59 | Kosmos-2I 63SM | Radar target | 24 September 1972 | DS-P1-Yu #57, fifty-third of seventy nine DS-P1-Yu satellites |
| Kosmos 488 | Zenit-4MK | 5 May 1972 11:20 | Voskhod 11A57 | Reconnaissance | 18 May 1972 | |
| Kosmos 489 | Tsiklon | 6 May 1972 11:24 | Kosmos-3M 11K65M | Navigation | in orbit | |
| Kosmos 490 | Zenit-2M | 17 May 1972 10:19 | Voskhod 11A57 | Reconnaissance | 29 May 1972 | |
| Kosmos 491 | Zenit-4M | 25 May 1972 06:35 | Voskhod 11A57 | Reconnaissance | 8 June 1972 | |
| Kosmos 492 | Zenit-4M | 9 June 1972 06:59 | Voskhod 11A57 | Reconnaissance | 22 June 1972 | |
| Kosmos 493 | Zenit-2M | 21 June 1972 06:25 | Voskhod 11A57 | Reconnaissance | 3 July 1972 | |
| Kosmos 494 | Strela-2 | 23 June 1972 09:24 | Kosmos-3M 11K65M | Communication | in orbit | |
| Kosmos 495 | Zenit-4M | 23 June 1972 11:19 | Voskhod 11A57 | Reconnaissance | 6 July 1972 | |
| Kosmos 496 | Soyuz 7K-T | 26 June 1972 14:53 | Soyuz 11A511 | Test | 2 July 1972 | Baikonur launch. Orbit 195 x 343 km. Inclination 51 degrees. Was probably a test of equipment for crewed space flights. Possibly redesigned Soyuz/Salyut hatch. |
| Kosmos 497 | DS-P1-I | 30 June 1972 09:19 | Kosmos-2I 63SM | Radar target | 7 November 1973 | DS-P1-I #12, twelfth of nineteen DS-P1-I satellites |
| Kosmos 498 | DS-P1-Yu | 5 July 1972 09:29 | Kosmos-2I 63SM | Radar target | 25 November 1972 | DS-P1-Yu #56, fifty-fifth of seventy nine DS-P1-Yu satellites |
| Kosmos 499 | Zenit-4M | 6 July 1972 10:40 | Voskhod 11A57 | Reconnaissance | 17 July 1972 | |
| Kosmos 500 | Tselina-O | 10 July 1972 16:15 | Kosmos-3M 11K65M | ELINT | 29 March 1980 | |
    * — satellite was destroyed in orbit rather than decaying and burning up in the Earth's atmosphere
* 1–250
* 251–500
* 501–750
* 751–1000
* 1001–1250
* 1251–1500
* 1501–1750
* 1751–2000
* 2001–2250
* 2251–2500
* 2501–2750