Kosmos LV Credit - © Mark Wade

Series production version of satellite launcher based on Yangel R-12 IRBM. Succeeded 63S1M prototype from 1965, using same 'Dvina' launch complex. From March 16, 1967 orbital launches from Plesetsk from purpose-built 'Raduga' launch complex LC133. Total of 123 launches, of which 8 were failures.

Manufacturer: Yuzhnoye. Launches: 122. Failures: 9. Success Rate: 92.62%. First Launch Date: 1966-05-24. Last Launch Date: 1977-06-18. Launch data is: complete. LEO Payload: 450 kg (990 lb). to: 270 km Orbit. at: 71.00 degrees. Apogee: 2,000 km (1,200 mi). Associated Spacecraft: DS-MO, DS-P1-I, DS-P1-Yu, DS-U1-A, DS-U1-IK, DS-U1-R, DS-U1-Ya, DS-U2-D, DS-U2-GF, DS-U2-GK, DS-U2-I, DS-U2-IK, DS-U2-M, DS-U2-MG, DS-U2-MP, DS-U2-V, DS-U3-IK, DS-U3-S. Other Associated Spacecraft: Oreol. Liftoff Thrust: 636.500 kN (143,091 lbf). Total Mass: 48,110 kg (106,060 lb). Core Diameter: 1.60 m (5.20 ft). Total Length: 31.00 m (101.00 ft). Flyaway Unit Cost $: 7.500 million. in: 1985 unit dollars.

• Stage Number: 1. 1 x Stage: Kosmos A-1. Gross Mass: 39,515 kg (87,115 lb). Empty Mass: 3,150 kg (6,940 lb). Thrust (vac): 730.500 kN (164,223 lbf). Isp: 264 sec. Burn time: 125 sec. Isp(sl): 230 sec. Diameter: 1.60 m (5.20 ft). Span: 1.80 m (5.90 ft). Length: 18.00 m (59.00 ft). Propellants: Nitric acid/Kerosene. No Engines: 1. Engine: RD-214. Other designations: Sandal; SS-4; 8K63; R-12; 63; 11K63. Status: Out of production.

• Stage Number: 2. 1 x Stage: Kosmos A-2. Gross Mass: 8,595 kg (18,948 lb). Empty Mass: 840 kg (1,850 lb). Thrust (vac): 105.510 kN (23,720 lbf). Isp: 352 sec. Burn time: 250 sec. Isp(sl): 220 sec. Diameter: 1.60 m (5.20 ft). Span: 1.60 m (5.20 ft). Length: 7.80 m (25.50 ft). Propellants: Lox/UDMH. No Engines: 1. Engine: RD-119. Other designations: S1. Status: Out of production.

1963 October 1 - Launch Vehicle: Kosmos 11K63.

• Kosmos scientific satellites authorised. Nation: USSR. Spacecraft: DS-1. All-Russian Council of the National Economy (VSNKh) Decree 'Program for Space Investigations With Small Artificial Satellite, Launched on the Kosmos -- On course of work on small satellites at OKB-586' was issued. References: 474.

• Scientific Kosmos satellites approved. Nation: USSR. Spacecraft: DS-U1-A. Ministry of General Machine Building (MOM) Decree 'On Preparations in 1965-66 of 18 Small Unifunctional Earth Satellites for Carrying out Scientific Investigations-creation of small scientific satellites at OKB-586' was issued. References: 474.

• Cosmos 119 Nation: USSR. Program: DS. Payload: DS-U2-I s/n 1. Mass: 250 kg (550 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-I. Agency: MO SSSR. Perigee: 209 km (129 mi). Apogee: 1,278 km (794 mi). Inclination: 48.40 deg. Period: 99.70 min. COSPAR: 1966-043A. USAF Sat Cat: 2182. Completed Operations Date: 1966-05-26. Decay Date: 1966-11-30. Studied the influence of the ionosphere on passing VLF radio waves. References: 1, 2, 5, 6, 99.

• Cosmos 135 Nation: USSR. Program: DS. Payload: DS-U2-MP s/n 1. Mass: 355 kg (782 lb). Class: Earth. Type: Micrometeoroid. Spacecraft: DS-U2-MP. Agency: MO SSSR. Perigee: 253 km (157 mi). Apogee: 648 km (402 mi). Inclination: 48.40 deg. Period: 93.60 min. COSPAR: 1966-112A. USAF Sat Cat: 2612. Completed Operations Date: 1967-04-12. Decay Date: 1967-04-12. Studied cosmic dust particles in near-Earth space. References: 1, 2, 5, 6, 99.

• Cosmos 142 Nation: USSR. Program: DS. Payload: DS-U2-I s/n 2. Mass: 315 kg (694 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-I. Agency: MO SSSR. Perigee: 216 km (134 mi). Apogee: 1,320 km (820 mi). Inclination: 48.40 deg. Period: 100.10 min. COSPAR: 1967-013A. USAF Sat Cat: 2678. Completed Operations Date: 1967-07-06. Decay Date: 1967-07-06. Studied the influence of the ionosphere on passing VLF radio waves. References: 1, 2, 5, 6, 99.

• Cosmos 145 Nation: USSR. Program: DS. Payload: DS-U2-M s/n 2. Mass: 250 kg (550 lb). Class: Technology. Spacecraft: DS-U2-M. Agency: MO SSSR. Perigee: 226 km (140 mi). Apogee: 2,107 km (1,309 mi). Inclination: 48.40 deg. Period: 108.70 min. COSPAR: 1967-019A. USAF Sat Cat: 2697. Completed Operations Date: 1967-04-30. Decay Date: 1968-03-08. Development tests of atomic clocks. References: 1, 2, 5, 6, 99.

• Cosmos 148 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 2. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 404 km (251 mi). Inclination: 71.00 deg. Period: 91.30 min. COSPAR: 1967-023A. USAF Sat Cat: 2712. Completed Operations Date: 1967-05-07. Decay Date: 1967-05-07. Operational radar target for the ABM forces. First launch of 63SM/11K63 version of Kosmos launch vehicle; first launch from the Raduga launch complex at Plesetsk. References: 1, 2, 5, 6, 99.

• Cosmos 149 Nation: USSR. Program: DS. Payload: DS-MO s/n 1. Mass: 321 kg (707 lb). Class: Technology. Spacecraft: DS-MO. Agency: MO SSSR. Perigee: 246 km (152 mi). Apogee: 284 km (176 mi). Inclination: 48.40 deg. Period: 89.80 min. COSPAR: 1967-024A. USAF Sat Cat: 2714. Completed Operations Date: 1967-04-08. Decay Date: 1967-04-07. Used in development of aerodynamic systems for stabilisation and orientation of spacecraft. Also carried military optical equipment experiments. References: 1, 2, 5, 6, 99.

• Cosmos 152 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 7. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 472 km (293 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1967-028A. USAF Sat Cat: 2722. Completed Operations Date: 1967-06-08. Decay Date: 1967-08-05. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 163 Nation: USSR. Program: DS. Payload: DS-U2-MP s/n 2. Mass: 357 kg (787 lb). Class: Earth. Type: Micrometeoroid. Spacecraft: DS-U2-MP. Agency: MO SSSR. Perigee: 255 km (158 mi). Apogee: 598 km (371 mi). Inclination: 48.30 deg. Period: 93.10 min. COSPAR: 1967-056A. USAF Sat Cat: 2832. Completed Operations Date: 1967-10-11. Decay Date: 1967-10-11. Studied cosmic dust particles in near-Earth space. References: 1, 2, 5, 6, 99.

• Cosmos 165 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 11. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 200 km (120 mi). Apogee: 1,514 km (940 mi). Inclination: 81.80 deg. Period: 102.00 min. COSPAR: 1967-059A. USAF Sat Cat: 2842. Completed Operations Date: 1967-06-24. Decay Date: 1968-01-15. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 166 Nation: USSR. Program: DS. Payload: DS-U3-S s/n 1. Mass: 357 kg (787 lb). Class: Solar. Spacecraft: DS-U3-S. Agency: MO SSSR. Perigee: 288 km (178 mi). Apogee: 555 km (344 mi). Inclination: 48.40 deg. Period: 93.00 min. COSPAR: 1967-061A. USAF Sat Cat: 2848. Completed Operations Date: 1967-09-26. Decay Date: 1967-10-25. Specialized orbital solar observatory for measuring solar rays in mulitple spectral zones. References: 1, 2, 5, 6, 99.

• Cosmos 173 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 8. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 499 km (310 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1967-081A. USAF Sat Cat: 2921. Completed Operations Date: 1967-12-03. Decay Date: 1967-12-17. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 176 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 10. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 196 km (121 mi). Apogee: 1,525 km (947 mi). Inclination: 81.90 deg. Period: 102.20 min. COSPAR: 1967-086A. USAF Sat Cat: 2942. Completed Operations Date: 1967-11-11. Decay Date: 1968-03-03. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 191 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 9. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 494 km (306 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1967-115A. USAF Sat Cat: 3043. Completed Operations Date: 1968-03-02. Decay Date: 1968-03-02. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 197 Nation: USSR. Program: DS. Payload: DS-U2-V s/n 3. Mass: 325 kg (716 lb). Class: Technology. Type: Military. Spacecraft: DS-U2-V. Agency: MO SSSR. Perigee: 217 km (134 mi). Apogee: 486 km (301 mi). Inclination: 48.40 deg. Period: 91.50 min. COSPAR: 1967-126A. USAF Sat Cat: 3079. Completed Operations Date: 1968-01-30. Decay Date: 1968-01-30. Military technology development satellite - mission still classified. References: 1, 2, 5, 6, 99.

• Cosmos 202 Nation: USSR. Program: DS. Payload: DS-U2-V s/n 4. Mass: 325 kg (716 lb). Class: Technology. Type: Military. Spacecraft: DS-U2-V. Agency: MO SSSR. Perigee: 210 km (130 mi). Apogee: 488 km (303 mi). Inclination: 48.40 deg. Period: 91.50 min. COSPAR: 1968-010A. USAF Sat Cat: 3128. Decay Date: 1968-03-24. Military technology development satellite - mission still classified. References: 1, 2, 5, 6, 99.

• Cosmos 204 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 3. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 485 km (301 mi). Apogee: 626 km (388 mi). Inclination: 70.90 deg. Period: 95.70 min. COSPAR: 1968-015A. USAF Sat Cat: 3139. Completed Operations Date: 1969-03-03. Decay Date: 1969-03-02. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• DS-U1-Ya s/n 1 Nation: USSR. Program: DS. Payload: DS-U1-Ya. Class: Earth. Type: Magnetosphere. Spacecraft: DS-U1-Ya. Agency: RVSN. COSPAR: F680306A. Studied charged particle flows and cosmic rays.

• Cosmos 211 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 13. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 199 km (123 mi). Apogee: 1,532 km (951 mi). Inclination: 81.90 deg. Period: 102.30 min. COSPAR: 1968-028A. USAF Sat Cat: 3181. Completed Operations Date: 1968-04-13. Decay Date: 1968-11-10. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 215 Nation: USSR. Program: DS. Payload: DS-U1-A s/n 1. Mass: 385 kg (848 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U1-A. Agency: MO SSSR. Perigee: 255 km (158 mi). Apogee: 403 km (250 mi). Inclination: 48.40 deg. Period: 91.00 min. COSPAR: 1968-033A. USAF Sat Cat: 3205. Completed Operations Date: 1968-06-06. Decay Date: 1968-06-30. Studied the optical characteristics of the atmosphere. Radiation observatory; eight telescopes. References: 1, 2, 5, 6, 99.

• Cosmos 219 Nation: USSR. Program: DS. Payload: DS-U2-D s/n 2. Mass: 300 kg (660 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U2-D. Agency: MO SSSR. Perigee: 215 km (133 mi). Apogee: 1,745 km (1,084 mi). Inclination: 48.40 deg. Period: 104.60 min. COSPAR: 1968-038A. USAF Sat Cat: 3220. Decay Date: 1969-03-02. Studied charged particle flows. References: 1, 2, 5, 6, 99.

• Cosmos 221 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 14. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 215 km (133 mi). Apogee: 2,140 km (1,320 mi). Inclination: 48.40 deg. Period: 108.90 min. COSPAR: 1968-043A. USAF Sat Cat: 3269. Completed Operations Date: 1969-01-29. Decay Date: 1969-08-31. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 222 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 12. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 285 km (177 mi). Apogee: 488 km (303 mi). Inclination: 70.90 deg. Period: 92.30 min. COSPAR: 1968-044A. USAF Sat Cat: 3272. Completed Operations Date: 1968-10-12. Decay Date: 1968-10-11. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 225 Nation: USSR. Program: DS. Payload: DS-U1-Ya s/n 2. Mass: 375 kg (826 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U1-Ya. Agency: MO SSSR. Perigee: 255 km (158 mi). Apogee: 519 km (322 mi). Inclination: 48.40 deg. Period: 92.20 min. COSPAR: 1968-048A. USAF Sat Cat: 3279. Completed Operations Date: 1968-06-29. Decay Date: 1968-11-02. Studied charged particle flows and cosmic rays. References: 1, 2, 5, 6, 99.

• Cosmos 230 Nation: USSR. Program: DS. Payload: DS-U3-S s/n 2. Mass: 367 kg (809 lb). Class: Solar. Spacecraft: DS-U3-S. Agency: MO SSSR. Perigee: 287 km (178 mi). Apogee: 546 km (339 mi). Inclination: 48.40 deg. Period: 92.90 min. COSPAR: 1968-056A. USAF Sat Cat: 3308. Completed Operations Date: 1968-11-02. Decay Date: 1968-11-02. Specialized orbital solar observatory for measuring solar rays in mulitple spectral zones. References: 1, 2, 5, 6, 99.

• Cosmos 233 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 15. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 198 km (123 mi). Apogee: 1,514 km (940 mi). Inclination: 81.90 deg. Period: 102.10 min. COSPAR: 1968-061A. USAF Sat Cat: 3326. Completed Operations Date: 1969-02-06. Decay Date: 1969-02-07. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6.

• Cosmos 242 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 4. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 406 km (252 mi). Inclination: 71.00 deg. Period: 91.30 min. COSPAR: 1968-079A. USAF Sat Cat: 3414. Completed Operations Date: 1968-11-13. Decay Date: 1968-11-13. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 245 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 16. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 284 km (176 mi). Apogee: 473 km (293 mi). Inclination: 71.00 deg. Period: 92.10 min. COSPAR: 1968-083A. USAF Sat Cat: 3457. Completed Operations Date: 1969-01-16. Decay Date: 1969-01-15. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 257 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 17. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 286 km (177 mi). Apogee: 462 km (287 mi). Inclination: 70.90 deg. Period: 92.00 min. COSPAR: 1968-107A. USAF Sat Cat: 3578. Completed Operations Date: 1969-03-05. Decay Date: 1969-03-05. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 259 Nation: USSR. Program: DS. Payload: DS-U2-I s/n 3. Mass: 325 kg (716 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-I. Agency: MO SSSR. Perigee: 215 km (133 mi). Apogee: 1,331 km (827 mi). Inclination: 48.40 deg. Period: 100.20 min. COSPAR: 1968-113A. USAF Sat Cat: 3612. Completed Operations Date: 1969-05-05. Decay Date: 1969-05-05. Studied the influence of the ionosphere on passing VLF radio waves. References: 1, 2, 5, 6, 99.

• Cosmos 261 Nation: USSR. Program: DS. Payload: DS-U2-GK s/n 1. Mass: 347 kg (765 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U2-GK. Agency: MO SSSR. Perigee: 206 km (128 mi). Apogee: 637 km (395 mi). Inclination: 71.20 deg. Period: 93.00 min. COSPAR: 1968-117A. USAF Sat Cat: 3624. Completed Operations Date: 1969-02-12. Decay Date: 1969-02-12. Conducted complex geophysical studies of the upper atmosphere, including aiir density and auroral investigations. References: 1, 2, 5, 6, 99.

• Cosmos 262 Nation: USSR. Program: DS. Payload: DS-U2-GF s/n 1. Mass: 352 kg (776 lb). Class: Solar. Spacecraft: DS-U2-GF. Agency: MO SSSR. Perigee: 264 km (164 mi). Apogee: 791 km (491 mi). Inclination: 48.40 deg. Period: 95.20 min. COSPAR: 1968-119A. USAF Sat Cat: 3629. Completed Operations Date: 1969-05-03. Decay Date: 1969-07-18. Conducted heliophysical studies. References: 1, 2, 5, 6, 99.

• Cosmos 265 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 21. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 273 km (169 mi). Apogee: 456 km (283 mi). Inclination: 71.00 deg. Period: 91.80 min. COSPAR: 1969-012A. USAF Sat Cat: 3675. Completed Operations Date: 1969-05-01. Decay Date: 1969-05-01. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 268 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 18. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 209 km (129 mi). Apogee: 2,173 km (1,350 mi). Inclination: 48.40 deg. Period: 109.10 min. COSPAR: 1969-020A. USAF Sat Cat: 3773. Completed Operations Date: 1969-07-03. Decay Date: 1970-05-09. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 275 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 5. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 273 km (169 mi). Apogee: 780 km (480 mi). Inclination: 71.00 deg. Period: 95.20 min. COSPAR: 1969-031A. USAF Sat Cat: 3846. Completed Operations Date: 1969-08-06. Decay Date: 1970-02-07. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 277 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 20. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 289 km (179 mi). Apogee: 446 km (277 mi). Inclination: 70.90 deg. Period: 91.90 min. COSPAR: 1969-033A. USAF Sat Cat: 3855. Completed Operations Date: 1969-07-06. Decay Date: 1969-07-06. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 283 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 19. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 196 km (121 mi). Apogee: 1,501 km (932 mi). Inclination: 81.90 deg. Period: 102.00 min. COSPAR: 1969-047A. USAF Sat Cat: 3957. Completed Operations Date: 1969-12-11. Decay Date: 1969-12-10. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 285 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 24. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 266 km (165 mi). Apogee: 493 km (306 mi). Inclination: 71.00 deg. Period: 92.10 min. COSPAR: 1969-049A. USAF Sat Cat: 3983. Completed Operations Date: 1969-10-07. Decay Date: 1969-10-07. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• DS-P1-Yu s/n 23 Nation: USSR. Program: DS. Payload: DS-P1-Yu. Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: RVSN. COSPAR: F690723A. Development of systems for air defence and the control of outer space.

• Cosmos 295 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 29. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 472 km (293 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1969-073A. USAF Sat Cat: 4076. Completed Operations Date: 1969-09-27. Decay Date: 1969-12-01. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 1 Nation: USSR. Program: DS. Payload: DS-U3-IK s/n 1. Mass: 320 kg (700 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U3-IK. Agency: IK. Perigee: 264 km (164 mi). Apogee: 617 km (383 mi). Inclination: 48.30 deg. Period: 93.40 min. COSPAR: 1969-088A. USAF Sat Cat: 4128. Completed Operations Date: 1969-10-30. Decay Date: 1970-01-02. Measurements of the solar radiation and its effect on the atmosphere of the earth. Payload included East European experiments to study solar ultraviolet and X-ray effects on the upper atmosphere. Investigation of References: 1, 2, 5, 6, 99, 116.

• Cosmos 303 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 28. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 466 km (289 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1969-090A. USAF Sat Cat: 4136. Completed Operations Date: 1970-01-24. Decay Date: 1970-01-23. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 307 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 22. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 229 km (142 mi). Apogee: 2,150 km (1,330 mi). Inclination: 48.30 deg. Period: 109.20 min. COSPAR: 1969-094A. USAF Sat Cat: 4184. Completed Operations Date: 1970-11-11. Decay Date: 1970-12-30. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 308 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 7. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 408 km (253 mi). Inclination: 71.00 deg. Period: 91.30 min. COSPAR: 1969-096A. USAF Sat Cat: 4219. Completed Operations Date: 1970-01-04. Decay Date: 1970-01-04. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 311 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 27. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 297 km (184 mi). Apogee: 484 km (300 mi). Inclination: 71.10 deg. Period: 92.30 min. COSPAR: 1969-102A. USAF Sat Cat: 4252. Completed Operations Date: 1970-03-10. Decay Date: 1970-03-10. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 314 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 30. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 465 km (288 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1969-106A. USAF Sat Cat: 4266. Completed Operations Date: 1970-03-22. Decay Date: 1970-03-22. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 2 Nation: USSR. Program: DS. Payload: DS-U1-IK s/n 1. Mass: 320 kg (700 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U1-IK. Agency: IK. Perigee: 200 km (120 mi). Apogee: 1,178 km (731 mi). Inclination: 48.40 deg. Period: 98.50 min. COSPAR: 1969-110A. USAF Sat Cat: 4285. Completed Operations Date: 1970-02-12. Decay Date: 1970-06-07. East European instruments carried to determine the characteristics of the earth's ionosphere and the concentrations of electrons and positive ions. References: 1, 2, 5, 6, 99, 116.

• Cosmos 319 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 25. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 200 km (120 mi). Apogee: 1,508 km (937 mi). Inclination: 82.00 deg. Period: 102.00 min. COSPAR: 1970-004A. USAF Sat Cat: 4299. Completed Operations Date: 1970-07-01. Decay Date: 1970-07-01. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 320 Nation: USSR. Program: DS. Payload: DS-MO s/n 3. Mass: 375 kg (826 lb). Class: Technology. Spacecraft: DS-MO. Agency: MO SSSR. Perigee: 247 km (153 mi). Apogee: 326 km (202 mi). Inclination: 48.40 deg. Period: 90.20 min. COSPAR: 1970-005A. USAF Sat Cat: 4301. Completed Operations Date: 1970-02-10. Decay Date: 1970-02-10. Used in development of aerodynamic systems for stabilisation and orientation of spacecraft. Also carried military optical equipment experiments. References: 1, 2, 5, 6, 99.

• Cosmos 321 Nation: USSR. Program: DS. Payload: DS-U2-MG s/n 1. Mass: 365 kg (804 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U2-MG. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 479 km (297 mi). Inclination: 71.00 deg. Period: 92.10 min. COSPAR: 1970-006A. USAF Sat Cat: 4308. Completed Operations Date: 1970-03-23. Decay Date: 1970-03-23. Studed the Earth's magnetic poles. References: 1, 2, 5, 6, 99.

• DS-P1-I s/n 6 Nation: USSR. Program: DS. Payload: DS-P1-I. Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: RVSN. COSPAR: F700130A. Operational radar target for the ABM forces.

• Cosmos 324 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 32. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 274 km (170 mi). Apogee: 465 km (288 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1970-014A. USAF Sat Cat: 4338. Completed Operations Date: 1970-05-23. Decay Date: 1970-05-23. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 327 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 8. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 280 km (170 mi). Apogee: 819 km (508 mi). Inclination: 71.00 deg. Period: 95.70 min. COSPAR: 1970-020A. USAF Sat Cat: 4351. Completed Operations Date: 1970-09-11. Decay Date: 1971-01-19. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 334 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 31. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 287 km (178 mi). Apogee: 458 km (284 mi). Inclination: 70.90 deg. Period: 92.00 min. COSPAR: 1970-033A. USAF Sat Cat: 4378. Completed Operations Date: 1970-08-10. Decay Date: 1970-08-09. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 335 Nation: USSR. Program: DS. Payload: DS-U1-R s/n 1. Mass: 295 kg (650 lb). Class: Earth. Type: Atmosphere. Spacecraft: DS-U1-R. Agency: MO SSSR. Perigee: 250 km (150 mi). Apogee: 401 km (249 mi). Inclination: 48.40 deg. Period: 91.00 min. COSPAR: 1970-035A. USAF Sat Cat: 4380. Completed Operations Date: 1970-06-20. Decay Date: 1970-06-22. Studied spectral range of the UF. References: 1, 2, 5, 6, 99.

• DS-P1-Yu s/n 36 Nation: USSR. Program: DS. Payload: DS-P1-Yu. Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: RVSN. COSPAR: F700522A. Development of systems for air defence and the control of outer space.

• Cosmos 347 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 35. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 173 km (107 mi). Apogee: 373 km (231 mi). Inclination: 48.30 deg. Period: 89.90 min. COSPAR: 1970-043A. USAF Sat Cat: 4411. Completed Operations Date: 1970-11-13. Decay Date: 1971-11-07. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 348 Nation: USSR. Program: DS. Payload: DS-U2-GK s/n 2. Mass: 357 kg (787 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U2-GK. Agency: MO SSSR. Perigee: 205 km (127 mi). Apogee: 598 km (371 mi). Inclination: 71.00 deg. Period: 92.50 min. COSPAR: 1970-044A. USAF Sat Cat: 4413. Completed Operations Date: 1970-07-25. Decay Date: 1970-07-25. Conducted complex geophysical studies of the upper atmosphere. Air density, auroral investigations. References: 1, 2, 5, 6, 99.

• Cosmos 351 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 38. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 467 km (290 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1970-051A. USAF Sat Cat: 4427. Completed Operations Date: 1970-10-13. Decay Date: 1970-10-13. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 3 Nation: USSR. Program: DS. Payload: DS-U2-IK s/n 1. Mass: 340 kg (740 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-IK. Agency: MO SSSR. Perigee: 201 km (124 mi). Apogee: 1,294 km (804 mi). Inclination: 48.40 deg. Period: 99.80 min. COSPAR: 1970-057A. USAF Sat Cat: 4482. Completed Operations Date: 1970-12-04. Decay Date: 1970-12-06. Studied charged particle flows and the ionosphere. Carried East European experiments that studied protons, electrons, alpha particles. References: 1, 2, 5, 6, 99, 116.

• Cosmos 356 Nation: USSR. Program: DS. Payload: DS-U2-MG s/n 2. Mass: 357 kg (787 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U2-MG. Agency: MO SSSR. Perigee: 231 km (143 mi). Apogee: 573 km (356 mi). Inclination: 82.00 deg. Period: 92.60 min. COSPAR: 1970-059A. USAF Sat Cat: 4487. Completed Operations Date: 1970-10-03. Decay Date: 1970-10-02. Studed the Earth's magnetic poles. References: 1, 2, 5, 6, 99.

• Cosmos 357 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 40. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 476 km (295 mi). Inclination: 71.00 deg. Period: 92.00 min. COSPAR: 1970-063A. USAF Sat Cat: 4495. Completed Operations Date: 1970-11-24. Decay Date: 1970-11-24. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 362 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 9. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 829 km (515 mi). Inclination: 71.00 deg. Period: 95.60 min. COSPAR: 1970-073A. USAF Sat Cat: 4536. Completed Operations Date: 1970-11-24. Decay Date: 1971-10-13. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 369 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 42. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 268 km (166 mi). Apogee: 509 km (316 mi). Inclination: 71.00 deg. Period: 92.30 min. COSPAR: 1970-081A. USAF Sat Cat: 4573. Completed Operations Date: 1971-01-22. Decay Date: 1971-01-22. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 4 Nation: USSR. Program: DS. Payload: DS-U3-IK s/n 2. Mass: 320 kg (700 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U3-IK. Agency: MO SSSR. Perigee: 255 km (158 mi). Apogee: 656 km (407 mi). Inclination: 48.40 deg. Period: 93.70 min. COSPAR: 1970-084A. USAF Sat Cat: 4580. Completed Operations Date: 1971-01-08. Decay Date: 1971-01-17. Investigation of the ultra-violet and x-radiation of the sun and its effect on the structure of the Earth's upper atmosphere. Payload included East European experiments to study solar ultraviolet and X-ray effects on upper atmosphere. References: 1, 2, 5, 6, 99, 116.

• Cosmos 380 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 26. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 199 km (123 mi). Apogee: 1,520 km (940 mi). Inclination: 82.00 deg. Period: 102.20 min. COSPAR: 1970-100A. USAF Sat Cat: 4762. Completed Operations Date: 1970-11-26. Decay Date: 1971-06-17. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 388 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 43. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 505 km (313 mi). Inclination: 71.00 deg. Period: 92.30 min. COSPAR: 1970-112A. USAF Sat Cat: 4811. Completed Operations Date: 1971-05-12. Decay Date: 1971-05-10. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 391 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 11. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 267 km (165 mi). Apogee: 803 km (498 mi). Inclination: 70.90 deg. Period: 95.30 min. COSPAR: 1971-002A. USAF Sat Cat: 4847. Completed Operations Date: 1971-04-01. Decay Date: 1972-02-21. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 393 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 34. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 485 km (301 mi). Inclination: 71.00 deg. Period: 92.10 min. COSPAR: 1971-007A. USAF Sat Cat: 4884. Completed Operations Date: 1971-06-12. Decay Date: 1971-06-16. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• DS-P1-Yu s/n 39 Nation: USSR. Program: DS. Payload: DS-P1-Yu. Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: RVSN. COSPAR: F710305B. Development of systems for air defence and the control of outer space.

• Cosmos 408 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 37. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 212 km (131 mi). Apogee: 1,488 km (924 mi). Inclination: 81.80 deg. Period: 102.00 min. COSPAR: 1971-037A. USAF Sat Cat: 5177. Completed Operations Date: 1971-12-22. Decay Date: 1971-12-29. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 421 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 48. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 292 km (181 mi). Apogee: 443 km (275 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1971-044A. USAF Sat Cat: 5232. Completed Operations Date: 1971-11-05. Decay Date: 1971-11-08. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 423 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 47. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 487 km (302 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1971-047A. USAF Sat Cat: 5246. Completed Operations Date: 1971-11-20. Decay Date: 1971-11-26. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• DS-P1-Yu s/n 33 Nation: USSR. Program: DS. Payload: DS-P1-Yu. Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: RVSN. COSPAR: F710803A. Development of systems for air defence and the control of outer space.

• Cosmos 435 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 41. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 478 km (297 mi). Inclination: 70.90 deg. Period: 92.00 min. COSPAR: 1971-072A. USAF Sat Cat: 5441. Completed Operations Date: 1972-01-28. Decay Date: 1972-01-28. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 440 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 10. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 788 km (489 mi). Inclination: 70.90 deg. Period: 95.20 min. COSPAR: 1971-079A. USAF Sat Cat: 5480. Completed Operations Date: 1972-01-20. Decay Date: 1972-10-29. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 453 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 44. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 267 km (165 mi). Apogee: 497 km (308 mi). Inclination: 70.90 deg. Period: 92.20 min. COSPAR: 1971-090A. USAF Sat Cat: 5563. Completed Operations Date: 1972-03-19. Decay Date: 1972-03-19. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 455 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 54. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 491 km (305 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1971-097A. USAF Sat Cat: 5608. Completed Operations Date: 1972-04-05. Decay Date: 1972-04-09. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• DS-P1-I?? Nation: USSR. Program: DS. Payload: DS-P1-I. Class: Military. Type: Target. Spacecraft: DS-P1-I. COSPAR: F711124A. Operational radar target for the ABM forces.

• Cosmos 458 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 53. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 497 km (308 mi). Inclination: 70.00 deg. Period: 92.20 min. COSPAR: 1971-101A. USAF Sat Cat: 5623. Completed Operations Date: 1972-04-20. Decay Date: 1972-04-20. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 5 Nation: USSR. Program: DS. Payload: DS-U2-IK s/n 2. Mass: 340 kg (740 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-IK. Agency: IK. Perigee: 198 km (123 mi). Apogee: 1,181 km (733 mi). Inclination: 48.40 deg. Period: 98.50 min. COSPAR: 1971-104A. USAF Sat Cat: 5641. Decay Date: 1972-04-07. Carried Czech and Soviet instruments that investigated the effects of solar activity on near-Earth radiation. Studied the radiation levels in near-Earth space, investigated dipole corpuscular streams in near space in connexion with solar activity and investigation of the nature and spectrum of low-frequency electromagnetic oscillations in natural plasma.References: 1, 2, 5, 6, 99, 116.

• Cosmos 467 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 45. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 266 km (165 mi). Apogee: 466 km (289 mi). Inclination: 71.00 deg. Period: 91.90 min. COSPAR: 1971-113A. USAF Sat Cat: 5704. Completed Operations Date: 1972-04-18. Decay Date: 1972-04-18. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 472 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 52. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 193 km (119 mi). Apogee: 1,536 km (954 mi). Inclination: 82.00 deg. Period: 102.20 min. COSPAR: 1972-004A. USAF Sat Cat: 5804. Completed Operations Date: 1972-08-16. Decay Date: 1972-08-18. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 481 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 46. Mass: 375 kg (826 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 277 km (172 mi). Apogee: 496 km (308 mi). Inclination: 70.00 deg. Period: 92.30 min. COSPAR: 1972-020A. USAF Sat Cat: 5906. Completed Operations Date: 1972-09-03. Decay Date: 1972-09-02. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 485 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 58. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 477 km (296 mi). Inclination: 70.00 deg. Period: 92.00 min. COSPAR: 1972-028A. USAF Sat Cat: 5938. Completed Operations Date: 1972-08-31. Decay Date: 1972-08-30. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 487 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 57. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 504 km (313 mi). Inclination: 70.00 deg. Period: 92.20 min. COSPAR: 1972-033A. USAF Sat Cat: 6006. Completed Operations Date: 1972-09-24. Decay Date: 1972-09-24. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• DS-P1-Yu s/n 51 Nation: USSR. Program: DS. Payload: DS-P1-Yu. Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: RVSN. COSPAR: F720425A. Development of systems for air defence and the control of outer space.

• Intercosmos 7 Nation: USSR. Program: DS. Payload: DS-U3-IK s/n 3. Mass: 375 kg (826 lb). Class: Earth. Type: Magnetosphere. Spacecraft: DS-U3-IK. Agency: IK. Perigee: 260 km (160 mi). Apogee: 550 km (340 mi). Inclination: 48.40 deg. Period: 92.60 min. COSPAR: 1972-047A. USAF Sat Cat: 6075. Completed Operations Date: 1972-10-05. Decay Date: 1972-10-05. Continuation of joint studies of the sun's ultra-violet and x-radiation and its effects on the structure of the earth's upper atmosphere. References: 1, 2, 5, 6, 99, 116.

• Cosmos 497 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 12. Mass: 300 kg (660 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 787 km (489 mi). Inclination: 70.90 deg. Period: 95.20 min. COSPAR: 1972-048A. USAF Sat Cat: 6076. Completed Operations Date: 1973-11-07. Decay Date: 1973-11-07. Operational radar target for the ABM forces. References: 1, 2, 6, 99.

• Cosmos 498 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 56. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 266 km (165 mi). Apogee: 490 km (300 mi). Inclination: 70.00 deg. Period: 92.10 min. COSPAR: 1972-050A. USAF Sat Cat: 6086. Completed Operations Date: 1972-11-25. Decay Date: 1972-11-25. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 501 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 50. Mass: 250 kg (550 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 221 km (137 mi). Apogee: 2,167 km (1,346 mi). Inclination: 48.00 deg. Period: 109.30 min. COSPAR: 1972-054A. USAF Sat Cat: 6099. Completed Operations Date: 1972-12-20. Decay Date: 1974-05-09. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 523 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 63. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 478 km (297 mi). Inclination: 71.00 deg. Period: 92.00 min. COSPAR: 1972-078A. USAF Sat Cat: 6222. Completed Operations Date: 1973-02-21. Decay Date: 1973-03-07. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 524 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 49. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 266 km (165 mi). Apogee: 510 km (310 mi). Inclination: 70.00 deg. Period: 92.30 min. COSPAR: 1972-080A. USAF Sat Cat: 6229. Completed Operations Date: 1973-03-25. Decay Date: 1973-03-25. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 526 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 61. Mass: 325 kg (716 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 274 km (170 mi). Apogee: 485 km (301 mi). Inclination: 70.00 deg. Period: 92.10 min. COSPAR: 1972-084A. USAF Sat Cat: 6254. Completed Operations Date: 1973-04-06. Decay Date: 1973-04-08. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 8 Nation: USSR. Program: DS. Payload: DS-U1-IK s/n 2. Mass: 340 kg (740 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U1-IK. Agency: IK. Perigee: 203 km (126 mi). Apogee: 645 km (400 mi). Inclination: 71.00 deg. Period: 93.10 min. COSPAR: 1972-094A. USAF Sat Cat: 6291. Completed Operations Date: 1973-02-01. Decay Date: 1973-03-02. Continued joint investigation of the characteristics of the earth's ionosphere and recording of electron and proton fluxes. References: 1, 2, 5, 6, 99, 116.

• Cosmos 545 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 62. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 268 km (166 mi). Apogee: 495 km (307 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1973-004A. USAF Sat Cat: 6348. Completed Operations Date: 1973-08-01. Decay Date: 1973-07-31. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 553 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 55. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 494 km (306 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1973-020A. USAF Sat Cat: 6427. Completed Operations Date: 1973-11-12. Decay Date: 1973-11-11. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Intercosmos 9 Nation: USSR. Program: DS. Payload: DS-U2-IK s/n. Mass: 400 kg (880 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-IK. Agency: IK. Perigee: 199 km (123 mi). Apogee: 1,526 km (948 mi). Inclination: 48.40 deg. Period: 102.20 min. COSPAR: 1973-022A. USAF Sat Cat: 6433. Completed Operations Date: 1973-10-15. Decay Date: 1973-10-15. Also designated Intercosmos Copernicus 500. Investigated solar radio-frequency radiation and the characteristics of the earth's ionosphere. References: 1, 2, 5, 6, 99, 116.

• Cosmos 558 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 65. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 501 km (311 mi). Inclination: 71.00 deg. Period: 92.30 min. COSPAR: 1973-029A. USAF Sat Cat: 6645. Completed Operations Date: 1973-12-25. Decay Date: 1973-12-22. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 562 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 66. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 483 km (300 mi). Inclination: 70.00 deg. Period: 92.00 min. COSPAR: 1973-035A. USAF Sat Cat: 6665. Completed Operations Date: 1974-01-08. Decay Date: 1974-01-07. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 580 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 59. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 273 km (169 mi). Apogee: 490 km (300 mi). Inclination: 70.90 deg. Period: 92.10 min. COSPAR: 1973-057A. USAF Sat Cat: 6793. Completed Operations Date: 1974-09-04. Decay Date: 1974-04-01. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 601 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 60. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 195 km (121 mi). Apogee: 1,135 km (705 mi). Inclination: 81.80 deg. Period: 98.00 min. COSPAR: 1973-075A. USAF Sat Cat: 6875. Completed Operations Date: 1974-08-15. Decay Date: 1974-08-15. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 608 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 69. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 500 km (310 mi). Inclination: 70.90 deg. Period: 92.20 min. COSPAR: 1973-091A. USAF Sat Cat: 6941. Completed Operations Date: 1974-07-13. Decay Date: 1974-07-10. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 611 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 64. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 480 km (290 mi). Inclination: 70.10 deg. Period: 92.00 min. COSPAR: 1973-094A. USAF Sat Cat: 6952. Completed Operations Date: 1974-06-20. Decay Date: 1974-06-19. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 615 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 13. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 834 km (518 mi). Inclination: 71.00 deg. Period: 95.70 min. COSPAR: 1973-099A. USAF Sat Cat: 6971. Completed Operations Date: 1975-06-16. Decay Date: 1975-12-17. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 633 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 71. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 491 km (305 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1974-010A. USAF Sat Cat: 7187. Completed Operations Date: 1974-10-04. Decay Date: 1974-10-04. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 634 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 67. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 491 km (305 mi). Inclination: 70.90 deg. Period: 92.20 min. COSPAR: 1974-012A. USAF Sat Cat: 7211. Completed Operations Date: 1974-09-19. Decay Date: 1974-10-09. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 662 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 14. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 812 km (504 mi). Inclination: 70.90 deg. Period: 95.50 min. COSPAR: 1974-047A. USAF Sat Cat: 7347. Completed Operations Date: 1975-03-17. Decay Date: 1976-08-28. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• DS-P1-Yu s/n 68 Nation: USSR. Program: DS. Payload: DS-P1-Yu. Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: RVSN. COSPAR: F740711A. Development of systems for air defence and the control of outer space.

• Cosmos 668 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 74. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 494 km (306 mi). Inclination: 71.00 deg. Period: 92.20 min. COSPAR: 1974-058A. USAF Sat Cat: 7385. Completed Operations Date: 1975-02-17. Decay Date: 1975-02-21. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 686 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 72. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 279 km (173 mi). Apogee: 476 km (295 mi). Inclination: 70.90 deg. Period: 92.10 min. COSPAR: 1974-074A. USAF Sat Cat: 7447. Completed Operations Date: 1975-05-02. Decay Date: 1975-05-01. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 695 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 73. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 273 km (169 mi). Apogee: 468 km (290 mi). Inclination: 71.00 deg. Period: 92.00 min. COSPAR: 1974-091A. USAF Sat Cat: 7538. Completed Operations Date: 1975-05-10. Decay Date: 1975-07-15. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 703 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 70. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 197 km (122 mi). Apogee: 1,518 km (943 mi). Inclination: 82.00 deg. Period: 102.10 min. COSPAR: 1975-003A. USAF Sat Cat: 7611. Completed Operations Date: 1975-08-11. Decay Date: 1975-11-20. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 705 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 75. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 502 km (311 mi). Inclination: 71.00 deg. Period: 92.30 min. COSPAR: 1975-006A. USAF Sat Cat: 7623. Completed Operations Date: 1975-11-20. Decay Date: 1975-11-18. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 725 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 77. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 270 km (160 mi). Apogee: 481 km (298 mi). Inclination: 71.00 deg. Period: 92.10 min. COSPAR: 1975-026A. USAF Sat Cat: 7730. Completed Operations Date: 1976-01-02. Decay Date: 1976-01-06. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 745 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 76. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 264 km (164 mi). Apogee: 514 km (319 mi). Inclination: 71.00 deg. Period: 92.40 min. COSPAR: 1975-058A. USAF Sat Cat: 7982. Completed Operations Date: 1976-03-07. Decay Date: 1976-03-12. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 750 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 15. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 803 km (498 mi). Inclination: 71.00 deg. Period: 95.40 min. COSPAR: 1975-067A. USAF Sat Cat: 8036. Completed Operations Date: 1976-01-30. Decay Date: 1977-09-29. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 801 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 16. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 268 km (166 mi). Apogee: 796 km (494 mi). Inclination: 71.00 deg. Period: 95.30 min. COSPAR: 1976-012A. USAF Sat Cat: 8658. Completed Operations Date: 1976-12-14. Decay Date: 1978-01-05. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 818 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 78. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 271 km (168 mi). Apogee: 481 km (298 mi). Inclination: 71.10 deg. Period: 92.10 min. COSPAR: 1976-044A. USAF Sat Cat: 8851. Completed Operations Date: 1977-01-05. Decay Date: 1977-03-07. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 849 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 17. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 264 km (164 mi). Apogee: 865 km (537 mi). Inclination: 71.00 deg. Period: 96.00 min. COSPAR: 1976-083A. USAF Sat Cat: 9382. Completed Operations Date: 1977-06-30. Decay Date: 1978-04-24. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.

• Cosmos 850 Nation: USSR. Program: DS. Payload: DS-P1-Yu s/n 79. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-Yu. Agency: MO SSSR. Perigee: 272 km (169 mi). Apogee: 493 km (306 mi). Inclination: 70.90 deg. Period: 92.20 min. COSPAR: 1976-084A. USAF Sat Cat: 9387. Completed Operations Date: 1977-05-10. Decay Date: 1977-05-16. Development of systems for air defence and the control of outer space. References: 1, 2, 5, 6, 99.

• Cosmos 901 Nation: USSR. Program: DS. Payload: DS-P1-I s/n 18. Mass: 400 kg (880 lb). Class: Military. Type: Target. Spacecraft: DS-P1-I. Agency: MO SSSR. Perigee: 269 km (167 mi). Apogee: 820 km (500 mi). Inclination: 71.00 deg. Period: 95.50 min. COSPAR: 1977-025A. USAF Sat Cat: 9905. Completed Operations Date: 1978-06-29. Decay Date: 1978-06-28. Operational radar target for the ABM forces. References: 1, 2, 5, 6, 99.