1975 October 1 - Launch Vehicle: Tsiklon. Model: Tsyklon 2. -
 US-A and Tsiklon-2 accepted into military service. Nation: USSR. Spacecraft: US-A. Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On adoption of US-A with Tsiklon-2 into armaments' was issued. References: 474.
1975 October 1 - Launch Site: Baikonur. Launch Complex: LC101. Launch Pad: -. Launch Vehicle: R-36M. - SLI? Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2.
1975 October 1 - 08:30 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. - Cosmos 774 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 204 km (126 mi). Apogee: 315 km (195 mi). Inclination: 71.40 deg. Period: 89.70 min. COSPAR: 1975-095A. USAF Sat Cat: 8345. Duration: 14.00 days. Decay Date: 1975-10-15. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6.
1975 October 1 - 15:35 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy/Ionosphere/Chemical release/Plasma mission Nation: USSR. Apogee: 162 km (100 mi). References: 2.
1975 October 2 - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Arcas. Model: Sidewinder-Arcas. LV Configuration: Sidewinder-Arcas MSAC 2L7503. -
 Ionosphere mission Nation: USA. Agency: USA?. Apogee: 90 km (55 mi). References: 2.
1975 October 2 - 09:00 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy/Ionosphere/Chemical release/Plasma mission Nation: USSR. Apogee: 168 km (104 mi). References: 2.
1975 October 2 - 15:35 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy/Ionosphere/Chemical release/Plasma mission Nation: USSR. Apogee: 164 km (101 mi). References: 2.
1975 October 2 - 21:05 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy/Ionosphere/Chemical release/Plasma mission Nation: USSR. Apogee: 160 km (90 mi). References: 2.
1975 October 3 - Launch Site: Marambio. Launch Complex: -. Launch Pad: -. Launch Vehicle: Canopus. Model: Castor (A). -
 Ionosphere mission Nation: Germany. Agency: MPE. Apogee: 400 km (240 mi). References: 2.
1975 October 3 - 03:15 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 200A. LV Configuration: Aerobee 200A NASA 26.47DH. - X-ray astronomy mission Nation: USA. Agency: NASA. Apogee: 212 km (131 mi). References: 2.
1975 October 6 - 09:00 GMT - Launch Site: Vandenberg. Launch Complex: SLC2W. Launch Pad: -. Launch Vehicle: Delta. Model: Delta 2910. LV Configuration: Delta 2910 600/D115. - Explorer 54 Nation: USA. Program: Explorer. Payload: AE D. Mass: 676 kg (1,490 lb). Class: Earth. Type: Atmosphere. Spacecraft: AE. Agency: NASA GSF. Perigee: 151 km (93 mi). Apogee: 3,819 km (2,373 mi). Inclination: 90.10 deg. Period: 126.80 min. COSPAR: 1975-096A. USAF Sat Cat: 8353. Decay Date: 1976-03-12. Atmospheric Explorer; atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). References: 2, 6.
1975 October 8 - 00:30 GMT - Launch Site: Baikonur. Launch Complex: LC81/23. Launch Pad: -. Launch Vehicle: Proton. Model: Proton-K/DM. LV Configuration: Proton-K/DM 286-02. - Cosmos 775 Nation: USSR. Payload: SPRN No. 1. Mass: 2,000 kg (4,400 lb). Class: Early Warning. Spacecraft: Prognoz SPRN. Agency: MOM. Perigee: 35,749 km (22,213 mi). Apogee: 35,853 km (22,277 mi). Inclination: 14.90 deg. Period: 1,436.80 min. COSPAR: 1975-097A. USAF Sat Cat: 8357. Completed Operations Date: 1975-10-08. First launch of a prototype for a new geosynchronous ballistic missile early warning satellite. Exploded in orbit. The next launch did not come until nine years later, so this may have been a version of the Oko elliptical orbit early warning satellite. As of 29 August 2001 located at 113.71 deg E drifting at 0.044 deg W per day. As of 2007 Mar 10 located at 54.82E drifting at 0.255W degrees per day.
References: 2, 6, 67, 107, 274.
1975 October 9 - - X-24 Flight 59 Nation: USA. Payload: X-24B flight 31. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: Enevoldson. Maximum Speed - 724 kph. Maximum Altitude - 13720 m. Flight Time - 251 sec. References: 49, 97.
1975 October 9 - 04:49 GMT - Launch Site: El Arenosillo. Launch Complex: -. Launch Pad: -. Launch Vehicle: Skylark. Model: Skylark 6 AC. LV Configuration: Skylark 6 AC S103. - DLR H-GR-68 (Astro 7) Ultraviolet astronomy mission Nation: Germany. Agency: DFVLR. Apogee: 254 km (157 mi). References: 2.
1975 October 9 - 10:45 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 170. LV Configuration: Aerobee 170 NASA 13.117UL. - Ultraviolet astronomy mission Nation: USA. Agency: NASA. Apogee: 203 km (126 mi). References: 2.
1975 October 9 - 19:15 GMT - Launch Site: Vandenberg. Launch Complex: SLC4W. Launch Pad: -. Launch Vehicle: Titan. Model: Titan 24B. LV Configuration: Titan 24B 24B-13 (3B-47). - OPS 5499 Nation: USA. Payload: KH-8 no. 45 / Agena D. Mass: 3,000 kg (6,600 lb). Class: Surveillance. Type: Military. Spacecraft: KH-8. Agency: NRO/USAF. Perigee: 145 km (90 mi). Apogee: 274 km (170 mi). Inclination: 96.40 deg. Period: 88.60 min. COSPAR: 1975-098A. USAF Sat Cat: 8360. Decay Date: 1975-11-30. KH-8 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). References: 2, 6.
1975 October 10 - 23:00 GMT - Launch Site: ETR Launch Area. Launch Complex: -. Launch Pad: -. Launch Vehicle: Poseidon. - Demonstration and shakedown operations launch Nation: USA. Agency: USN. Apogee: 500 km (310 mi). References: 2.
1975 October 12 - 06:39 GMT - Launch Site: Vandenberg. Launch Complex: SLC5. Launch Pad: -. Launch Vehicle: Scout. Model: Scout D-1. LV Configuration: Scout D-1 S195C. - Triad 2 Nation: USA. Program: Transit. Payload: TIP 2. Mass: 94 kg (207 lb). Class: Navigation. Spacecraft: TIP. Agency: USN. Perigee: 427 km (265 mi). Apogee: 490 km (300 mi). Inclination: 90.40 deg. Period: 93.80 min. COSPAR: 1975-099A. USAF Sat Cat: 8361. Decay Date: 1991-05-26. Prototype of improved Transit satellite. Tested pulsed plasma engine. References: 2, 6.
1975 October 14 - 10:30 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee F. LV Configuration: Astrobee F CRL A31.320-02. - Zodiacal infrared Infrared astronomy mission Nation: USA. Agency: USAF. Apogee: 265 km (164 mi). References: 2.
1975 October 16 - 02:10 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy mission Nation: USSR. Apogee: 165 km (102 mi). References: 2.
1975 October 16 - 04:04 GMT - Launch Site: Baikonur. Launch Complex: LC81/23. Launch Pad: -. Launch Vehicle: Proton. Model: Proton-K/D. LV Configuration: Proton-K/D 287-02. FAILURE: Block D stage failed. - Ye-8-5M s/n 412 - Block D stage failed. Nation: USSR. Program: Luna. Payload: Ye-8-5M s/n 412. Mass: 5,300 kg (11,600 lb). Class: Planetary. Type: Lunar. Spacecraft: Luna Ye-8-5. Agency: RVSN. COSPAR: F751016A. Decay Date: 1975-10-16. Attempted robotic lunar soil return mission. Block D stage failed. References: 67, 274.
1975 October 16 - 16:30 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Paiute Tomahawk. LV Configuration: Paiute Tomahawk CRL A10.000-1. - DCST test Nation: USA. Agency: USAF CRL. Apogee: 263 km (163 mi). References: 2.
1975 October 16 - 22:40 GMT - Launch Site: Cape Canaveral. Launch Complex: LC17B. Launch Pad: -. Launch Vehicle: Delta. Model: Delta 2914. LV Configuration: Delta 2914 597/D116. - GOES 1 Nation: USA. Payload: GOES A. Mass: 295 kg (650 lb). Class: Earth. Type: Weather. Spacecraft: GOES. Agency: NOAA. Perigee: 35,787 km (22,236 mi). Apogee: 35,811 km (22,251 mi). Inclination: 14.80 deg. Period: 1,436.70 min. COSPAR: 1975-100A. USAF Sat Cat: 8366. Completed Operations Date: 1985-01-01. Geostationary Operational Environmental Satellite. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Positioned in geosynchronous orbit over the Atlantic Ocean at 55 deg W in 1975-1976; over the Pacific Ocean 135 deg W in 1976-1978; over the Atlantic Ocean 10 deg W in 1978; over the Indian Ocean 58 deg E in 1978-1979; over the Pacific Ocean 135 deg W in 1979-1980; over the Atlantic Ocean 93 deg W in 1980; over the Pacific Ocean 130 deg W in 1980-1985 As of 3 September 2001 located at 81.97 deg W drifting at 0.051 deg E per day. As of 2007 Mar 9 located at 81.95W drifting at 0.055W degrees per day.
References: 2, 6.
1975 October 17 - Launch Vehicle: Shuttle. - Shuttle SSME first test. Nation: USA. Program: STS. Space shuttle main engine first main stage test at NSTL References: 15.
1975 October 17 - 14:30 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Voskhod 11A57. - Cosmos 776 Nation: USSR. Mass: 6,000 kg (13,200 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-2M. Agency: MOM. Perigee: 200 km (120 mi). Apogee: 288 km (178 mi). Inclination: 62.80 deg. Period: 89.40 min. COSPAR: 1975-101A. USAF Sat Cat: 8369. Duration: 12.00 days. Decay Date: 1975-10-29. Area survey photo reconnaissance satellite; returned film capsule; separated science capsule. References: 2, 6.
- Nauka Cosmos 776 Nation: USSR. Payload: Nauka. Spacecraft: Nauka. Agency: MOM. Perigee: 194 km (120 mi). Apogee: 272 km (169 mi). Inclination: 62.80 deg. Period: 89.16 min. COSPAR: 1975-101D. USAF Sat Cat: 8412. Decay Date: 1975-11-01. References: 2, 279.
1975 October 18 - 04:45 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 170. LV Configuration: Aerobee 170 NASA 13.108UH. - X-ray astronomy mission Nation: USA. Agency: NASA. Apogee: 184 km (114 mi). References: 2.
1975 October 21 - - X-24 Flight 60 Nation: USA. Payload: X-24B flight 32. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: Scobee. Maximum Speed - 743 kph. Maximum Altitude - 13720 m. Flight Time - 255 sec. References: 49, 97.
1975 October 21 - 11:42 GMT - Launch Site: El Arenosillo. Launch Complex: -. Launch Pad: -. Launch Vehicle: INTA. Model: INTA-300. LV Configuration: INTA-300 F-75001. - Aeronomy / test Nation: Germany. Agency: FRG. Apogee: 240 km (140 mi). Failed to reach expected altitude. References: 2.
1975 October 22 - - Venera 9, Venus Landing (Soviet Venus Orbiter/Lander) Nation: USSR. Spacecraft: Venera 4V-1.
1975 October 25 -
1975 October 25 - Launch Site: Baikonur. Launch Complex: LC90/19. Launch Pad: LC90?/pad?. Launch Vehicle: Tsiklon. Model: R-36 8K67. - Operational test? Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2.
1975 October 29 - 02:39 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 170A. LV Configuration: Aerobee 170A NASA 13.48GG. - Astronomy mission Nation: USA. Agency: NASA. Apogee: 186 km (115 mi). References: 2.
1975 October 29 - 11:00 GMT - Launch Site: Baikonur. Launch Complex: LC90/19. Launch Pad: LC90/pad?. Launch Vehicle: Tsiklon. Model: Tsiklon-2. - Cosmos 777 Nation: USSR. Program: EORSAT. Mass: 3,000 kg (6,600 lb). Class: Sigint. Type: Naval reconnaisance. Spacecraft: US-P. Agency: MO SSSR. Perigee: 425 km (264 mi). Apogee: 442 km (274 mi). Inclination: 65.00 deg. Period: 93.30 min. COSPAR: 1975-102A. USAF Sat Cat: 8416. Decay Date: 1976-06-03. Ocean monitoring; exploded 1/76. References: 2, 6.
1975 October 29 - 14:28 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy/Ionosphere/Chemical release/Plasma mission Nation: USSR. Apogee: 164 km (101 mi). References: 2.
1975 October 30 - 23:52 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Sergeant. Model: Sounding Rocket. LV Configuration: Sergeant EX530.90-1/S75-2. - PF-SGT-101 test Nation: USA. Agency: DNA. Apogee: 100 km (60 mi). References: 2.
1975 October 31 - - Enterprise lower fuselage complete. Nation: USA. Program: STS. Class: Manned. Type: Spaceplane. Spacecraft: Enterprise. Lower forward fuselage on dock, Palmdale, Enterprise (OV-101) References: 15.
1975 October 31 - 11:17 GMT - Launch Site: Kapustin Yar. Launch Complex: V-2. Launch Pad: -. Launch Vehicle: MR-12. - Aeronomy/Ionosphere mission Nation: USSR. Apogee: 152 km (94 mi). References: 2.
1975 November 3 - - X-24 Flight 61 Nation: USA. Payload: X-24B flight 33. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: McMurtry. Maximum Speed - 734 kph. Maximum Altitude - 13720 m. Flight Time - 248 sec. References: 49, 97.
1975 November 4 - 10:13 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53731-275. - Cosmos 778 Nation: USSR. Mass: 810 kg (1,780 lb). Class: Navigation. Spacecraft: Parus. Agency: MO SSSR. Perigee: 968 km (601 mi). Apogee: 1,001 km (621 mi). Inclination: 83.00 deg. Period: 104.80 min. COSPAR: 1975-103A. USAF Sat Cat: 8419. Military navigation satellite. References: 2, 6.
1975 November 4 - 15:20 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Voskhod 11A57. - Cosmos 779 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 182 km (113 mi). Apogee: 341 km (211 mi). Inclination: 62.80 deg. Period: 89.70 min. COSPAR: 1975-104A. USAF Sat Cat: 8420. Duration: 14.00 days. Decay Date: 1975-11-18. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6.
1975 November 6 - Launch Site: Johnston Island. Launch Complex: LE2. Launch Pad: -. Launch Vehicle: Delta. Model: Thor DSV-2J. LV Configuration: Thor DSV-2J 274. - DG-3 Nation: USA. Agency: USAF. Apogee: 500 km (310 mi). References: 2.
1975 November 8 - Launch Site: ETR Launch Area. Launch Complex: -. Launch Pad: -. Launch Vehicle: Poseidon. - FOT-15? Follow-on operational missile test Nation: USA. Agency: USN. Apogee: 500 km (310 mi). References: 2.
1975 November 8 - Launch Site: ETR Launch Area. Launch Complex: -. Launch Pad: -. Launch Vehicle: Poseidon. - FOT-15? Follow-on operational missile test Nation: USA. Agency: USN. Apogee: 500 km (310 mi). References: 2.
1975 November 8 - 05:20 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 170. LV Configuration: Aerobee 170 NASA 13.49UH. - X-ray astronomy mission Nation: USA. Agency: NASA. Apogee: 177 km (109 mi). References: 2.
1975 November 12 - - X-24 Flight 62 Nation: USA. Payload: X-24B flight 34. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: Enevoldson. Maximum Speed - 734 kph. Maximum Altitude - 13720 m. Flight Time - 241 sec. References: 49, 97.
1975 November 13 - Launch Site: ETR Launch Area. Launch Complex: -. Launch Pad: -. Launch Vehicle: Poseidon. - FOT-16? Follow-on operational missile test Nation: USA. Agency: USN. Apogee: 500 km (310 mi). References: 2.
1975 November 13 - Launch Site: Vandenberg. Launch Complex: LF03. Launch Pad: -. Launch Vehicle: Minuteman 1. Model: Minuteman 1B. - SFT-16 re-entry vehicle test flight Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi). References: 2.
1975 November 14 - Launch Site: Vandenberg. Launch Complex: LF08. Launch Pad: -. Launch Vehicle: Minuteman 3. - FOT GT50GM Follow-on Test launch Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi). References: 2.
1975 November 14 - 19:14 GMT - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Pad: -. Launch Vehicle: Soyuz. Model: Molniya 8K78M. - Molniya 3-03 Nation: USSR. Program: Molniya. Payload: Molniya-3 s/n 13. Mass: 1,600 kg (3,500 lb). Class: Communications. Spacecraft: Molniya-3. Agency: MOM. Perigee: 1,823 km (1,132 mi). Apogee: 38,527 km (23,939 mi). Inclination: 63.90 deg. Period: 717.70 min. COSPAR: 1975-105A. USAF Sat Cat: 8425. Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).
References: 2, 6.
1975 November 17 - - Columbia crew module started. Nation: USA. Program: STS. Class: Manned. Type: Spaceplane. Spacecraft: Columbia. Start long-lead fabrication of crew module, Columbia (OV-102) References: 15.
1975 November 17 - 14:36 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: -. Launch Vehicle: Soyuz. Model: Soyuz 11A511U. - Soyuz 20 Nation: USSR. Program: Salyut. Payload: Soyuz 7K-T(A9) s/n 64. Mass: 6,700 kg (14,700 lb). Class: Manned. Type: Spacecraft. Spacecraft: Soyuz 7K-T/A9. Agency: MOM. Perigee: 184 km (114 mi). Apogee: 251 km (155 mi). Inclination: 51.60 deg. Period: 88.80 min. COSPAR: 1975-106A. USAF Sat Cat: 8430. Duration: 90.49 days. Decay Date: 1976-02-16. Unmanned long duration test of the Soyuz transport vehicle; docked with Salyut 4. Recovered February 16, 1976 2:24 GMT. Comprehensive checking of improved on-board systems of the space craft under various flight conditions. Carried a biological payload. Living organisms were exposed to three months in space.
References: 2, 6, 445.
1975 November 18 - 19:01 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Javelin. Model: Nike Javelin. LV Configuration: Nike Javelin NASA 32.01WT. - Test mission Nation: USA. Agency: NASA. Apogee: 163 km (101 mi). References: 2.
1975 November 19 - - X-24 Flight 63 Nation: USA. Payload: X-24B flight 35. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: Scobee. Maximum Speed - 740 kph. Maximum Altitude - 13720 m. Flight Time - 249 sec. References: 49, 97.
1975 November 19 - 17:45 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Cajun. Model: Nike Cajun. LV Configuration: Nike Cajun NASA 10.415GM. - Aeronomy mission Nation: USA. Agency: NASA. Apogee: 120 km (70 mi). References: 2.
1975 November 20 - 02:06 GMT - Launch Site: Cape Canaveral. Launch Complex: LC17B. Launch Pad: -. Launch Vehicle: Delta. Model: Delta 2910. LV Configuration: Delta 2910 604/D117. - Explorer 55 Nation: USA. Program: Explorer. Payload: AE E. Mass: 721 kg (1,589 lb). Class: Earth. Type: Atmosphere. Spacecraft: AE. Agency: NASA GSF. Perigee: 154 km (95 mi). Apogee: 3,002 km (1,865 mi). Inclination: 19.70 deg. Period: 117.70 min. COSPAR: 1975-107A. USAF Sat Cat: 8440. Decay Date: 1981-06-10. Atmospheric Explorer. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). References: 2, 6.
1975 November 21 - 04:11 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Cajun. Model: Nike Cajun. LV Configuration: Nike Cajun NASA 10.423GM. - Aeronomy mission Nation: USA. Agency: NASA. Apogee: 121 km (75 mi). References: 2.
1975 November 21 - 09:20 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. - Cosmos 780 Nation: USSR. Mass: 6,000 kg (13,200 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-2M. Agency: MOM. Perigee: 201 km (124 mi). Apogee: 278 km (172 mi). Inclination: 65.00 deg. Period: 89.30 min. COSPAR: 1975-108A. USAF Sat Cat: 8442. Duration: 12.00 days. Decay Date: 1975-12-03. Area survey photo reconnaissance satellite; returned film capsule; separated science capsule. References: 2, 6.
- Nauka Cosmos 780 Nation: USSR. Payload: Nauka. Spacecraft: Nauka. Agency: MOM. Perigee: 197 km (122 mi). Apogee: 268 km (166 mi). Inclination: 65.00 deg. Period: 89.15 min. COSPAR: 1975-108D. USAF Sat Cat: 8460. Decay Date: 1975-12-11. References: 2, 279.
1975 November 21 - 16:37 GMT - Launch Site: Kiruna. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache SSC S01 (T1). -
 SSC Range test Nation: Sweden. Agency: SSC. Apogee: 131 km (81 mi). References: 2.
1975 November 21 - 17:11 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53731-271. - Cosmos 781 Nation: USSR. Program: Tselina. Mass: 900 kg (1,980 lb). Class: Sigint. Spacecraft: Tselina-O. Agency: MO SSSR. Perigee: 499 km (310 mi). Apogee: 563 km (349 mi). Inclination: 74.00 deg. Period: 95.20 min. COSPAR: 1975-109A. USAF Sat Cat: 8444. Decay Date: 1980-11-26. Replaced Cosmos 698. Investigation of the upper atmosphere and outer space. References: 2, 6.
1975 November 22 - 16:00 GMT - Launch Site: ETR Launch Area. Launch Complex: -. Launch Pad: -. Launch Vehicle: Polaris. Model: Polaris A3. LV Configuration: Polaris A3T. - Demonstration and shakedown operations launch Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi). References: 2.
1975 November 24 - 15:15 GMT - Launch Site: Woomera. Launch Complex: LA2. Launch Pad: LA2 SL. Launch Vehicle: Skylark. Model: Skylark 7 AC. LV Configuration: Skylark 7 AC SL1112. -
 Soft X-ray spectrometer X-ray astronomy mission Nation: UK. Agency: BAC. Apogee: 251 km (155 mi). References: 2.
1975 November 25 - 17:00 GMT - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Pad: -. Launch Vehicle: Soyuz. Model: Soyuz 11A511U. - Cosmos 782 Nation: USSR. Payload: Bion no. 3. Mass: 6,000 kg (13,200 lb). Class: Biology. Spacecraft: Bion. Agency: MOM. Perigee: 218 km (135 mi). Apogee: 384 km (238 mi). Inclination: 62.80 deg. Period: 90.50 min. COSPAR: 1975-110A. USAF Sat Cat: 8450. Duration: 19.50 days. Decay Date: 1975-12-15. Biological research. Continued investigation of the effects of space flight on living organisms. Capsule recovered 52 deg 17 min N, 64 deg 11 min E. The Cosmos 782 mission marked the first time that the United States participated in the Soviet Cosmos Program. Scientists from France, Czechoslovakia, Hungary, Poland, Romania, the U.S. and the U.S.S.R. participated in these investigations.
Additional Details: Cosmos 782. References: 2, 6, 104, 297.
1975 November 25 - 23:39 GMT - Launch Site: Cape Parry. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 4B. LV Configuration: Black Brant IVB AEC-IVA-03. - Periquito Plasma / barium release mission Nation: USA. Agency: NRCC/Sandia. Apogee: 500 km (310 mi). References: 2.
1975 November 26 - - X-24 Flight 64 Nation: USA. Payload: X-24B flight 36. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: McMurtry. Maximum Speed - 740 kph. Maximum Altitude - 13720 m. Flight Time - 245 sec. References: 49, 97.
1975 November 26 - 03:29 GMT - Launch Site: Jiuquan. Launch Complex: LA2B. Launch Pad: -. Launch Vehicle: CZ. Model: CZ-2C. LV Configuration: Chang Zheng 2C CZ2C-1 (4). -
 FSW-0 No. 1 Nation: China. Payload: FSW-0 No. 01. Mass: 2,500 kg (5,500 lb). Class: Surveillance. Type: Military. Spacecraft: FSW. Agency: MAI. Perigee: 183 km (113 mi). Apogee: 483 km (300 mi). Inclination: 63.00 deg. Period: 91.10 min. COSPAR: 1975-111A. USAF Sat Cat: 8452. Duration: 2.00 days. Decay Date: 1975-12-29. First orbital test of Chinese recoverable photo surveillance satellite. The spacecraft was brought down early, after three days in orbit, due to problems with the attitude control system cold gas supply. Along the skirt of the return capsule some wires and instruments were burnt during re-entry and capsule impacted far from its planned landing point. However usable film was obtained from the capsule. The Chinese Academy of Space Technology organised a team to determine the cause, and improvements were made in the next spacecraft of the model.
Additional Details: FSW-0 No. 1. References: 2, 6.
1975 November 28 - 00:10 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53721-252. - Cosmos 783 Nation: USSR. Program: Strela. Mass: 750 kg (1,650 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-2M. Agency: MO SSSR. Perigee: 779 km (484 mi). Apogee: 797 km (495 mi). Inclination: 74.10 deg. Period: 100.60 min. COSPAR: 1975-112A. USAF Sat Cat: 8458. References: 2, 6.
1975 November 28 - 12:28 GMT - Launch Site: South Uist. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P152H. - Electron density Ionosphere mission Nation: UK. Agency: SRC. Apogee: 129 km (80 mi). References: 2.
1975 November 28 - 12:56 GMT - Launch Site: South Uist. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P151H. - Atomic oxygen Atmospheric mission Nation: UK. Agency: SRC. Apogee: 147 km (91 mi). References: 2.
1975 November 28 - 23:39 GMT - Launch Site: Cape Parry. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 4B. LV Configuration: Black Brant IVB AEC-IVA-04. - Periquito Plasma / barium release mission Nation: USA. Agency: NRCC/Sandia. Apogee: 500 km (310 mi). References: 2.
1975 December 1 - - Enterprise upper forward fuselage complete. Nation: USA. Program: STS. Class: Manned. Type: Spaceplane. Spacecraft: Enterprise. Upper forward fuselage on dock, Palmdale, Enterprise (OV-101) References: 15.
1975 December 2 - 12:57 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.311-8. - Twilight D-Region Aeronomy / technology mission Nation: USA. Agency: USAF CRL. Apogee: 120 km (70 mi). References: 2.
1975 December 2 - 13:50 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.311-5. - Twilight D-Region Aeronomy / technology mission Nation: USA. Agency: USAF CRL. Apogee: 124 km (77 mi). References: 2.
1975 December 2 - 17:00 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.311-7. - Twilight D-Region Aeronomy / technology mission Nation: USA. Agency: USAF CRL. Apogee: 125 km (77 mi). References: 2.
1975 December 3 - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tater. - Test mission Nation: USA. Agency: SAMSO. Apogee: 5.00 km (3.10 mi). References: 2.
1975 December 3 - 00:35 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.413-5. - Twilight D-Region Aeronomy / technology mission Nation: USA. Agency: USAF CRL. Apogee: 125 km (77 mi). References: 2.
1975 December 3 - 00:59 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.205-7. - Twilight D-Region Aeronomy / technology mission Nation: USA. Agency: USAF CRL. Apogee: 125 km (77 mi). References: 2.
1975 December 3 - 02:00 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.413-4. - Twilight D-Region Aeronomy / technology mission Nation: USA. Agency: USAF CRL. Apogee: 127 km (78 mi). References: 2.
1975 December 3 - 10:00 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Voskhod 11A57. - Cosmos 784 Nation: USSR. Mass: 6,000 kg (13,200 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-2M. Agency: MOM. Perigee: 215 km (133 mi). Apogee: 231 km (143 mi). Inclination: 81.30 deg. Period: 88.90 min. COSPAR: 1975-113A. USAF Sat Cat: 8463. Duration: 12.00 days. Decay Date: 1975-12-15. Area survey photo reconnaissance satellite; returned film capsule; separated science capsule. References: 2, 6.
- Nauka Cosmos 784 Nation: USSR. Payload: Nauka. Spacecraft: Nauka. Agency: MOM. Perigee: 204 km (126 mi). Apogee: 217 km (134 mi). Inclination: 81.30 deg. Period: 88.71 min. COSPAR: 1975-113G. USAF Sat Cat: 8485. Decay Date: 1975-12-21. References: 2, 279.
1975 December 3 - 16:57 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Cajun. Model: Nike Cajun. LV Configuration: Nike Cajun NASA 10.424GM. - Aeronomy mission Nation: USA. Agency: NASA. Apogee: 122 km (75 mi). References: 2.
1975 December 4 - Launch Site: Vandenberg. Launch Complex: 395-C. Launch Pad: -. Launch Vehicle: Titan. Model: Titan 2. LV Configuration: Titan II B-41. - DG-4 Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi). References: 2.
1975 December 4 - Launch Site: Kwajalein. Launch Complex: RN. Launch Pad: -. Launch Vehicle: Sergeant. Model: Castor. LV Configuration: Castor-2R. - Technology mission Nation: USA. Agency: USAF. Apogee: 200 km (120 mi). References: 2.
1975 December 4 - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 8B. LV Configuration: Black Brant 8B AAF-NVB-01. -
 Test mission Nation: Canada. Agency: BAL. Apogee: 340 km (210 mi). References: 2.
1975 December 4 - 03:22 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 350. LV Configuration: Aerobee 350 CRL A35.191-1. - Infrared astronomy mission Nation: USA. Agency: USAF CRL. Apogee: 286 km (177 mi). References: 2.
1975 December 4 - 05:25 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Cajun. Model: Nike Cajun. LV Configuration: Nike Cajun NASA 10.410GM. - Aeronomy mission Nation: USA. Agency: NASA. Apogee: 120 km (70 mi). References: 2.
1975 December 4 - 13:52 GMT - Launch Site: Woomera. Launch Complex: LA2. Launch Pad: -. Launch Vehicle: Corella. LV Configuration: Corella C1002. -
 Aeronomy mission Nation: Australia. Agency: WRE. Apogee: 220 km (130 mi). References: 2.
1975 December 4 - 20:38 GMT - Launch Site: Vandenberg. Launch Complex: SLC4E. Launch Pad: -. Launch Vehicle: Titan. Model: Titan 3D. LV Configuration: Titan IIID 23D-13. - KH-9 no. 11 Nation: USA. Mass: 13,300 kg (29,300 lb). Class: Surveillance. Type: Military. Spacecraft: KH-9. Agency: NRO/CIA. Perigee: 157 km (97 mi). Apogee: 234 km (145 mi). Inclination: 96.30 deg. Period: 88.40 min. COSPAR: 1975-114A. USAF Sat Cat: 8467. Decay Date: 1976-04-01. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). References: 2, 6.
- KH 9-11 Subsatellite Nation: USA. Payload: SSF 9. Mass: 60 kg (132 lb). Class: Sigint. Spacecraft: SSF. Agency: USAF. Perigee: 236 km (146 mi). Apogee: 1,558 km (968 mi). Inclination: 96.30 deg. Period: 103.00 min. COSPAR: 1975-114B. USAF Sat Cat: 8468. Decay Date: 1978-05-01. Not identified as a subsatellite ferret by McDowell. References: 2, 6, 172.
1975 December 6 - 03:35 GMT - Launch Site: Vandenberg. Launch Complex: SLC5. Launch Pad: -. Launch Vehicle: Scout. Model: Scout F. LV Configuration: Scout F-1 S196C. FAILURE: Failure. - Explorer (56) Nation: USA. Program: Explorer. Payload: DAD-A. Mass: 71 kg (156 lb). Class: Earth. Type: Atmosphere. Spacecraft: DAD. Agency: NASA. COSPAR: F751206A. Decay Date: 1975-12-05. Dual Air Density; air density experiments. References: 126.
- DAD-B Nation: USA. Program: Explorer. Payload: DAD-B. Spacecraft: DAD. Agency: AFSC. COSPAR: F751206B. References: 279.
1975 December 6 - 06:05 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 350. LV Configuration: Aerobee 350 NASA 17.16UH. - X-ray astronomy mission Nation: USA. Agency: NASA. Apogee: 221 km (137 mi). References: 2.
1975 December 6 - 07:42 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 170. LV Configuration: Aerobee 170 NASA 13.118DG. - Astronomy mission Nation: USA. Agency: NASA. Apogee: 186 km (115 mi). References: 2.
1975 December 11 - 16:15 GMT - Launch Site: White Sands. Launch Complex: LC36. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 5C. LV Configuration: Black Brant VC NASA 21.32NP. - SPAR 1 Microgravity mission Nation: USA. Agency: NASA. Apogee: 206 km (128 mi). References: 2.
1975 December 11 - 17:00 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53746-308. - Intercosmos 14 Nation: USSR. Program: DS. Payload: DS-U2-IK s/n 6. Mass: 700 kg (1,540 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-IK. Agency: IK. Perigee: 335 km (208 mi). Apogee: 1,684 km (1,046 mi). Inclination: 74.00 deg. Period: 105.30 min. COSPAR: 1975-115A. USAF Sat Cat: 8471. Completed Operations Date: 1976-07-09. Decay Date: 1983-02-27. Study of low-frequency electromagnetic vibrations in the magnetosphere of the earth, of the structure of the ionosphere and of the intensity of micrometeorite fluxes. References: 2, 6, 99, 116.
1975 December 12 - 05:09 GMT - Launch Site: Vandenberg. Launch Complex: PLC-C. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Ute Tomahawk. LV Configuration: Ute Tomahawk CRL A09.406-1. - ESCAPE II (Sphere) Aeronomy mission Nation: USA. Agency: AFSC/CRL. Apogee: 164 km (101 mi). References: 2.
1975 December 12 - 12:45 GMT - Launch Site: Baikonur. Launch Complex: LC90/19. Launch Pad: LC90/pad?. Launch Vehicle: Tsiklon. Model: Tsiklon-2. - Cosmos 785 Nation: USSR. Program: RORSAT. Mass: 3,800 kg (8,300 lb). Class: Surveillance. Type: Naval Radarsat. Spacecraft: US-A. Agency: MO SSSR. Perigee: 907 km (563 mi). Apogee: 1,004 km (623 mi). Inclination: 65.10 deg. Period: 104.20 min. COSPAR: 1975-116C. USAF Sat Cat: 8480. Decay Date: 1976-02-05. Ocean surveillance; nuclear powered; failed immediately after reaching orbit. References: 2, 6.
1975 December 13 - 01:56 GMT - Launch Site: Cape Canaveral. Launch Complex: LC17A. Launch Pad: -. Launch Vehicle: Delta. Model: Delta 3914. LV Configuration: Delta 3914 607/D118. - Satcom 1 Nation: USA. Program: Satcom. Mass: 464 kg (1,022 lb). Class: Communications. Spacecraft: AS 1000. Manufacturer: Lockheed Martin. Agency: RCA Amer. Perigee: 35,875 km (22,291 mi). Apogee: 36,076 km (22,416 mi). Inclination: 12.80 deg. Period: 1,445.80 min. COSPAR: 1975-117A. USAF Sat Cat: 8476. Completed Operations Date: 1984-06-04. Positioned in geosynchronous orbit over the Pacific Ocean at 135 deg W in 1976-1983; over the Americas at 119 deg W in 1983-1984; over the Pacific Ocean 139 deg W in 1984 As of 5 September 2001 located at 38.03 deg E drifting at 2.422 deg W per day. As of 2007 Mar 9 located at 137.85W drifting at 2.426W degrees per day.
References: 2, 6.
1975 December 14 - 05:15 GMT - Launch Site: Cape Canaveral. Launch Complex: LC40. Launch Pad: -. Launch Vehicle: Titan. Model: Titan 3C. LV Configuration: Titan IIIC 23C-11 (3C-29). - IMEWS 5 Nation: USA. Payload: DSP Phase 2 s/n 7. Mass: 1,040 kg (2,290 lb). Class: Early Warning. Spacecraft: DSP. Agency: USAF. Perigee: 35,671 km (22,164 mi). Apogee: 35,785 km (22,235 mi). Inclination: 3.00 deg. Period: 1,436.00 min. COSPAR: 1975-118A. USAF Sat Cat: 8482. Completed Operations Date: 1987-12-31. Second generation geosynchronous ballistic missile launch detection satellite, remained in service for over twelve years. As of 1982 Dec 16 located at 34.61E drifting at 0.823E degrees per day. References: 2, 6, 127.
1975 December 16 - 09:19 GMT - Launch Site: Jiuquan. Launch Complex: LA2B. Launch Pad: -. Launch Vehicle: CZ. Model: FB-1. LV Configuration: Feng Bao 1 701-06. - JSSW 4 Nation: China. Payload: JSSW 4. Mass: 1,110 kg (2,440 lb). Class: Surveillance. Type: Military. Spacecraft: JSSW. Agency: MAI. Perigee: 186 km (115 mi). Apogee: 387 km (240 mi). Inclination: 69.00 deg. Period: 90.30 min. COSPAR: 1975-119A. USAF Sat Cat: 8488. Decay Date: 1976-01-27. Photo surveillance; radio transmission. References: 2, 6.
1975 December 16 - 09:50 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. - Cosmos 786 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 184 km (114 mi). Apogee: 325 km (201 mi). Inclination: 65.00 deg. Period: 89.50 min. COSPAR: 1975-120A. USAF Sat Cat: 8489. Duration: 13.00 days. Decay Date: 1975-12-29. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6.
1975 December 16 - 16:00 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk NASA 12.31GT. - Test mission Nation: USA. Agency: NASA. Apogee: 241 km (149 mi). References: 2.
1975 December 17 - Launch Site: Vandenberg. Launch Complex: LF22. Launch Pad: -. Launch Vehicle: Minuteman 3. - FOT GT51GB Follow-on Test launch Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi). References: 2.
1975 December 17 - 11:06 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Molniya 8K78M. - Molniya 2-15 Nation: USSR. Program: Molniya. Payload: Molniya-2. Mass: 1,600 kg (3,500 lb). Class: Communications. Spacecraft: Molniya-2. Agency: MOM. Perigee: 103 km (64 mi). Apogee: 24,113 km (14,983 mi). Inclination: 62.80 deg. Period: 416.90 min. COSPAR: 1975-121A. USAF Sat Cat: 8492. Decay Date: 1987-03-07. Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).
References: 2, 6.
1975 December 19 - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53721-263. FAILURE: Launch vehicle failed to orbit - unknown cause. - DS-P1-M Nation: USSR. Payload: DS-P1-M. Mass: 650 kg (1,430 lb). Class: Military. Type: ASAT Target. Spacecraft: DS-P1-M. Agency: RVSN. Apogee: 500 km (310 mi). COSPAR: F751219A. Target for IS ASAT systems tests. References: 2.
1975 December 20 - Launch Vehicle: Shuttle. - First SSME 60-second duration test, NSTL Nation: USA. Program: STS. References: 15.
1975 December 22 - 02:08 GMT - Launch Site: Baikonur. Launch Complex: LC31. Launch Pad: -. Launch Vehicle: Soyuz. Model: Molniya 8K78M. LV Configuration: Molniya 8K78M-SOL. - Prognoz 4 Nation: USSR. Payload: SO-M s/n 504. Mass: 905 kg (1,995 lb). Class: Earth. Type: Magnetosphere. Spacecraft: Prognoz. Agency: MOM. Perigee: 634 km (393 mi). Apogee: 199,000 km (123,000 mi). Inclination: 65.00 deg. Period: 5,740.00 min. COSPAR: 1975-122A. USAF Sat Cat: 8510. Decay Date: 1977-12-31. Investigation of the corpuscular and electromagnetic radiation of the sun and of solar plasma fluxes, study of the magnetic fields in circumterrestrial space in order to determine the effects of solar activity on the interplanetary medium and in the magne tosphere of the earth.
References: 2, 6.
1975 December 22 - 13:00 GMT - Launch Site: Baikonur. Launch Complex: LC81/24. Launch Pad: -. Launch Vehicle: Proton. Model: Proton-K/DM. LV Configuration: Proton-K/DM 288-01. - Raduga 1 Nation: USSR. Payload: Raduga s/n 11L. Mass: 1,940 kg (4,270 lb). Class: Communications. Type: Military. Spacecraft: Raduga . Agency: MOM. Perigee: 35,758 km (22,218 mi). Apogee: 35,807 km (22,249 mi). Inclination: 13.30 deg. Period: 1,435.90 min. COSPAR: 1975-123A. USAF Sat Cat: 8513. Completed Operations Date: 1978-01-01. Statsionar-1. Provision of uninterrupted round-the-clock telephone and telegraph radio-communications system in the USSR, transmission of USSR central television programmes to stations in the Orbita network and international cooperation. Positioned in geosynchronous orbit over the Indian Ocean at 85 deg E in 1975-1978? As of 27 August 2001 located at 70.55 deg E drifting at 0.084 deg W per day. As of 2007 Mar 11 located at 85.79E drifting at 0.009E degrees per day.
References: 2, 6, 67, 274.
1975 December 25 - 19:00 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Vostok 8A92M. - Meteor 1-23 Nation: USSR. Payload: Meteor M no. 23. Mass: 3,800 kg (8,300 lb). Class: Earth. Type: Weather. Spacecraft: Meteor M. Agency: MOM. Perigee: 850 km (520 mi). Apogee: 868 km (539 mi). Inclination: 81.20 deg. Period: 102.10 min. COSPAR: 1975-124A. USAF Sat Cat: 8519. Acquisition of meteorological information needed for use by the weather service. References: 2, 6.
1975 December 27 - 10:22 GMT - Launch Site: Plesetsk. Launch Complex: LC43/3. Launch Pad: -. Launch Vehicle: Soyuz. Model: Molniya 8K78M. - Molniya 3-04 Nation: USSR. Program: Molniya. Payload: Molniya-3 no. s/n 15. Mass: 1,600 kg (3,500 lb). Class: Communications. Spacecraft: Molniya-3. Agency: MOM. Perigee: 452 km (280 mi). Apogee: 40,708 km (25,294 mi). Inclination: 62.80 deg. Period: 733.80 min. COSPAR: 1975-125A. USAF Sat Cat: 8521. Decay Date: 1986-08-12. Decay date suspect Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).
References: 2, 6.
1975 December 31 - - Shuttle 1/4-scale model ground vibration test Nation: USA. Program: STS. 1/4-scale model ground vibration test facility construction starts. References: 15.
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