Chronology - Quarter 1 1975

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Previous Home Next 1975 January 1 - Launch Vehicle: UR-700. LV Configuration: UR-700M. Chelomei presents plan for Mars mission Nation: USSR. Class: Manned. Type: Mars flyby. Spacecraft: MK-700. As the only remaining contender for the Aelita design competition, Chelomei proposes a Mars flyby using an MK-700 spacecraft. A crew of two would be sent on a two year mission in a single launch of a UR-700M booster. The spacecraft would have a mass of 250 tonnes in low earth orbit and be equipped with an RD-410 nuclear engine. References: 73. 1975 January 1 - Launch Site: Vandenberg. Launch Complex: -. Launch Pad: -. The USNS Sunnyvale decommissioned. Nation: USA. The USNS Sunnyvale, the last Air Force Western Test Range instrumentation ship, transferred to the Maritime Administration. References: 88. 1975 January 1 - Launch Vehicle: Energia, RLA. Vulkan Mars Expedition Nation: USSR. Glushko proposed a Mars expedition launched by the Vulkan heavy-lift launch vehicle. The concept was treated like a bad allergy by the VPK. He later scaled it down and proposed it for launch by Energia (using 100 tonne modules instead of 230 tonne modules). References: 367. 1975 January 1 - Launch Vehicle: N1, RLA. Vulkan Lunar Base Nation: USSR. Program: Lunar L3. Spacecraft: LZhM, LZM, Lunokhod LEK, LEK. Mishin and Barmin, using budget provided by the Ministry of Defence, had designed a lunar base for launch by the N1 in 1969-1974. After the cancellation of the N1, Glushko pleaded with the Military-Industrial Commission for the work to be taken from Barmin and be given to NPO Energia. Glushko's alternative, Vulkan-launched base was elaborated within his bureau. Bushuyev developed spacecraft for the base. Prudnikova developed a modular lunar city, with living modules, factory modules, a nuclear reactor power module, and a lunar crawler with a 200 km radius of action. The project work was only finally cancelled after the Apollo-Soyuz flights. References: 367. 1975 January 1 - Launch Site: Kagoshima. Launch Complex: -. Launch Pad: -. Launch Vehicle: S. Model: S-310. LV Configuration: S-310-1. Test mission Nation: Japan. Agency: ISAS. Apogee: 200 km (120 mi). References: 2. 1975 - Launch Site: Baikonur. Launch Complex: -. Launch Pad: -. Launch Vehicle: UR-100. Operational missile test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975? - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Athena RTV. Re-entry vehicle test Nation: USA. Agency: USAF. Apogee: 200 km (120 mi). References: 2. 1975 January 6 - Shuttle static test article assembly starts. Nation: USA. Program: STS. Start long-lead fabrication aft fuselage (STA-099) References: 15. 1975 January 6 - 23:56 GMT - Launch Site: Cape Parry. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 4B. LV Configuration: Black Brant IVB Tordo I. Periquito Plasma / barium release mission Nation: USA. Agency: Sandia. Apogee: 540 km (330 mi). References: 2. 1975 January 9 - Launch Site: Kwajalein. Launch Complex: RN. Launch Pad: -. Launch Vehicle: Sergeant. Model: Castor. LV Configuration: Castor-2R. Re-entry Vehicle test Nation: USA. Agency: USAF. Apogee: 200 km (120 mi). References: 2. 1975 January 10 - 02:27 GMT - Launch Site: Vandenberg. Launch Complex: 395-C. Launch Pad: -. Launch Vehicle: Titan. Model: Titan 2. LV Configuration: Titan II B-27. SOFT Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi). References: 2. 1975 January 10 - 21:43 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: -. Launch Vehicle: Soyuz. Model: Soyuz 11A511. Soyuz 17 Nation: USSR. Program: Salyut. Payload: Soyuz 7K-T s/n 38. Mass: 6,800 kg (14,900 lb). Class: Manned. Type: Spacecraft. Spacecraft: Soyuz 7K-T. Agency: MOM. Perigee: 185 km (114 mi). Apogee: 249 km (154 mi). Inclination: 51.60 deg. Period: 88.80 min. COSPAR: 1975-001A. USAF Sat Cat: 7604. Duration: 29.56 days. Decay Date: 1975-02-09. Crew: Grechko, Gubarev. Flight: Soyuz 17. Manned two crew. Docked with Salyut 4. Joint experiments with the Salyut scientific orbital station. References: 2, 6, 32, 33,60. 1975 January 11 - 00:32 GMT - Launch Site: Cape Parry. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 4B. LV Configuration: Black Brant IVB Tordo II. Periquito Plasma / barium release mission Nation: Canada. Agency: Sandia. Apogee: 540 km (330 mi). References: 2. 1975 January 11 - 10:53 GMT - Launch Site: Sonde Stromfjord. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 4B. DLR G-BB4-66 Ionosphere mission Nation: USA. Agency: DFVLR. Apogee: 280 km (170 mi). References: 2. 1975 January 14 - X-24 Flight 47 Nation: USA. Payload: X-24B flight 19. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: Manke. Maximum Speed - 1862 kph. Maximum Altitude - 22180 m. Flight Time - 477 sec. References: 49, 97. 1975 January 14 - 20:56 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Ute Tomahawk. LV Configuration: Ute Tomahawk CRL A09.301-8. Aladdin 75 Reliability Test Aeronomy / test Nation: USA. Agency: USAF CRL. Apogee: 235 km (146 mi). References: 2. 1975 January 15 - 22:46 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Ute Tomahawk. LV Configuration: Ute Tomahawk CRL A09.105-8. Aladdin 75 Reliability Test Aeronomy mission Nation: USA. Agency: USAF CRL. Apogee: 159 km (98 mi). References: 2. 1975 January 17 - 09:07 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 702 Nation: USSR. Mass: 6,000 kg (13,200 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-2M. Agency: MOM. Perigee: 205 km (127 mi). Apogee: 313 km (194 mi). Inclination: 71.30 deg. Period: 89.70 min. COSPAR: 1975-002A. USAF Sat Cat: 7606. Duration: 12.00 days. Decay Date: 1975-01-29. Area survey photo reconnaissance satellite; returned film capsule. References: 2, 6. 1975 January 17 - 09:35 GMT - Launch Site: Kagoshima. Launch Complex: -. Launch Pad: -. Launch Vehicle: Kappa. Model: Kappa 9M. LV Configuration: Kappa 9M K-9M-49. Airglow Aeronomy / ionosphere mission Nation: Japan. Agency: ISAS. Apogee: 363 km (225 mi). References: 2. 1975 January 17 - 22:43 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Ute Tomahawk. LV Configuration: Ute Tomahawk CRL A09.301-9. Aladdin 75 Sphere Aeronomy / plasma mission Nation: USA. Agency: USAF CRL. Apogee: 190 km (110 mi). References: 2. 1975 January 18 - 04:35 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Paiute Tomahawk. LV Configuration: Paiute Tomahawk CRL A10.213-1. Aladdin 75 Mass Spectrometer Aeronomy mission Nation: USA. Agency: USAF CRL. Apogee: 159 km (98 mi). References: 2. 1975 January 18 - 04:45 GMT - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Paiute Tomahawk. LV Configuration: Paiute Tomahawk CRL A10.301-10. Aladdin 75 NO / Photometry Aeronomy mission Nation: USA. Agency: USAF CRL. Apogee: 183 km (113 mi). References: 2. 1975 January 19 - Launch Site: Baikonur. Launch Complex: LC162/36. Launch Pad: -. Launch Vehicle: Tsiklon. Model: R-36 8K67. Svilets test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 January 19 - 11:12 GMT - Launch Site: Vandenberg. Launch Complex: LF03. Launch Pad: -. Launch Vehicle: Minuteman 1. Model: Minuteman 1B. Trident SFT-4 re-entry vehicle test flight Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi). References: 2. 1975 January 20 - Launch Site: White Sands. Launch Complex: LC36. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 5C. LV Configuration: Black Brant VC NASA 21.24US. LPSP-EUV4 Solar mission Nation: USA. Agency: NASA. Apogee: 279 km (173 mi). References: 2. 1975 January 21 - Launch Site: Baikonur. Launch Complex: LC162/36. Launch Pad: -. Launch Vehicle: Tsiklon. Model: R-36 8K67. FAILURE: Failure. Svilets test Nation: USSR. Agency: RVSN. Apogee: 0 km ( mi). References: 2. 1975 January 21 - 11:04 GMT - Launch Site: Plesetsk. Launch Complex: LC133/1. Launch Pad: -. Launch Vehicle: Kosmos 2. Model: Kosmos 11K63. 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: 2, 6, 99. 1975 January 22 - 17:55 GMT - Launch Site: Vandenberg. Launch Complex: SLC2W. Launch Pad: -. Launch Vehicle: Delta. Model: Delta 2910. LV Configuration: Delta 2910 598/D107. Landsat 2 Nation: USA. Program: Landsat. Payload: Landsat B. Mass: 953 kg (2,101 lb). Class: Earth. Type: Landsat. Spacecraft: Landsat 1-2-3. Agency: NASA GSF. Perigee: 900 km (550 mi). Apogee: 913 km (567 mi). Inclination: 99.30 deg. Period: 103.10 min. COSPAR: 1975-004A. USAF Sat Cat: 7615. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). References: 2, 6. 1975 January 23 - 11:00 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 704 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 205 km (127 mi). Apogee: 305 km (189 mi). Inclination: 72.90 deg. Period: 89.60 min. COSPAR: 1975-005A. USAF Sat Cat: 7617. Duration: 14.00 days. Decay Date: 1975-02-06. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6. 1975 January 23 - 11:05 GMT - Launch Site: Kagoshima. Launch Complex: -. Launch Pad: -. Launch Vehicle: Kappa. Model: Kappa 9M. LV Configuration: Kappa 9M K-9M-50. X-ray astronomy mission Nation: Japan. Agency: ISAS. Apogee: 353 km (219 mi). References: 2. 1975 January 25 - 12:40 GMT - Launch Site: El Arenosillo. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel M P GFD-75001. Ionosphere mission Nation: UK. Agency: INTA?. Apogee: 100 km (60 mi). References: 2. 1975 January 26 - 02:37 GMT - Launch Site: Kerguelen. Launch Complex: -. Launch Pad: -. Launch Vehicle: Stromboli. Model: Eridan. LV Configuration: Eridan E012A. ARAKS Northward Ionosphere / plasma mission Nation: France. Agency: CNES. Apogee: 190 km (110 mi). References: 2. 1975 January 27 - Launch Site: Baikonur. Launch Complex: LC142/34. Launch Pad: -. Launch Vehicle: Tsiklon. Model: R-36 8K67. Svilets test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 January 28 - Launch Site: Kwajalein. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk Barium cloud. Magnetospheric mission Nation: USA. Agency: Sandia. Apogee: 185 km (114 mi). References: 2. 1975 January 28 - 12:05 GMT - Launch Site: Plesetsk. Launch Complex: LC133/1. Launch Pad: -. Launch Vehicle: Kosmos 2. Model: Kosmos 11K63. 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: 2, 6, 99. 1975 January 29 - 15:20 GMT - Launch Site: Vandenberg. Launch Complex: LF04. Launch Pad: -. Launch Vehicle: Minuteman 3. FOT GT48GM Follow-on Test launch Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi). References: 2. 1975 January 30 - 02:15 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Black Brant. Model: Black Brant 5B. LV Configuration: Black Brant VB AED-VB-43. Auroral/Aeronomy mission Nation: Canada. Agency: NRCC. Apogee: 244 km (151 mi). References: 2. 1975 January 30 - 14:10 GMT - Launch Site: El Arenosillo. Launch Complex: -. Launch Pad: -. Launch Vehicle: Skua. Model: Skua 4. LV Configuration: Skua 4 S4CL0-75001. Aeronomy / ionosphere mission Nation: UK. Agency: INTA/DLR. Apogee: 117 km (72 mi). References: 2. 1975 January 30 - 15:02 GMT - Launch Site: Plesetsk. Launch Complex: LC41/1. Launch Pad: -. Launch Vehicle: Soyuz. Model: Molniya 8K78M. Cosmos 706 Nation: USSR. Payload: Oko #4. Mass: 1,250 kg (2,750 lb). Class: Early Warning. Spacecraft: Oko. Agency: MOM. Perigee: 4,977 km (3,092 mi). Apogee: 35,365 km (21,974 mi). Inclination: 67.80 deg. Period: 717.60 min. COSPAR: 1975-007A. USAF Sat Cat: 7625. Covered Oko constellation planes 7/8 - 182 degree longitude of ascending node. References: 2, 6, 100. 1975 January 31 - Launch Site: Kwajalein. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk Barium cloud. Magnetospheric mission Nation: USA. Agency: Sandia. Apogee: 185 km (114 mi). References: 2. 1975 February 1 - Launch Vehicle: Shuttle. Lower-cost shuttle external tank Nation: USA. Grumman completes a study of a lower-cost external tank. It would use a Nomex core, aluminium liner, and E-glass/epoxy exterior. Although lower in cost than the baseline aluminium tank, it would be slightly heavier. Given the critical weight growth problem with the shuttle, it was not proceeded with. In fact, a continuous program of weight reduction for the baseline tank was introduced. Batch 1 External Tanks were already from 500 to 1040 kg lighter than the first tank. Batch 2, set for delivery from June 1982 to Vandenberg AFB for USAF launches, were 2700 kg lighter. The final "lightweight tank" was over 4500 kg lighter. All of these translated into equivalent additional payload for the shuttle. References: 44. 1975 February 1 - 03:00 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 200A. LV Configuration: Aerobee 200A NASA 26.27GG. 13-in RC Flight 3 Astronomy mission Nation: USA. Agency: NASA. Apogee: 220 km (130 mi). References: 2. 1975 February 3 - 09:16 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 350. LV Configuration: Aerobee 350 NASA 17.13CG. Astronomy mission Nation: USA. Agency: NASA. Apogee: 253 km (157 mi). References: 2. 1975 February 4 - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Recruit. Model: Pedro Recruit. LV Configuration: Pedro Recruit FLAME 1. FLAME test Nation: USA. Apogee: 17 km (10 mi). References: 2. 1975 February 4 - Launch Site: Baikonur. Launch Complex: LC140/18. Launch Pad: -. Launch Vehicle: R-36M. Joint flight trials launch Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 February 5 - Launch Site: Kwajalein. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk Barium cloud. Magnetospheric mission Nation: USA. Agency: Sandia. Apogee: 185 km (114 mi). References: 2. 1975 February 5 - 06:00 GMT - Launch Site: Tanegashima. Launch Complex: Q. Launch Pad: -. Launch Vehicle: Mu. Model: ETV. LV Configuration: ETV-2. Test mission Nation: Japan. Agency: NASDA. Apogee: 167 km (103 mi). References: 2. 1975 February 5 - 13:15 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53753-212. Cosmos 707 Nation: USSR. Program: Tselina. Mass: 900 kg (1,980 lb). Class: Sigint. Spacecraft: Tselina-O. Agency: MO SSSR. Perigee: 491 km (305 mi). Apogee: 548 km (340 mi). Inclination: 74.00 deg. Period: 95.00 min. COSPAR: 1975-008A. USAF Sat Cat: 7637. Decay Date: 1980-09-07. Investigation of the upper atmosphere and outer space. References: 2, 6. 1975 February 5 - 14:40 GMT - Launch Site: Vandenberg. Launch Complex: LF09. Launch Pad: LF09?. Launch Vehicle: Minuteman 3. FAILURE: Failure. OT GT29GM-1 operational test launch Nation: USA. Agency: USAF SAC. Apogee: 500 km (310 mi). References: 2. 1975 February 6 - 04:49 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Molniya 8K78M. Molniya 2-12 Nation: USSR. Program: Molniya. Payload: Molniya-2. Mass: 1,600 kg (3,500 lb). Class: Communications. Spacecraft: Molniya-2. Agency: MOM. Perigee: 653 km (405 mi). Apogee: 40,746 km (25,318 mi). Inclination: 62.80 deg. Period: 738.70 min. COSPAR: 1975-009A. USAF Sat Cat: 7641. Decay Date: 1985-07-04. Decay date suspect Operation of the long-range telephone and telegraph radiocommunications system in the USSR; transmission of television programmes to stations in the Orbita network. References: 2, 6. 1975 February 6 - 16:35 GMT - Launch Site: Kourou. Launch Complex: Diamant. Launch Pad: -. Launch Vehicle: Diamant. Model: Diamant BP.4. LV Configuration: Diamant BP.4 No. 1. Starlette Nation: France. Payload: Starlette (BETA). Mass: 47 kg (103 lb). Class: Earth. Type: Geodetic. Spacecraft: Starlette. Agency: CNES. Perigee: 805 km (500 mi). Apogee: 1,108 km (688 mi). Inclination: 49.80 deg. Period: 104.20 min. COSPAR: 1975-010A. USAF Sat Cat: 7646. Geodesic satellite. References: 2, 6. 1975 February 6 - 22:04 GMT - Launch Site: Cape Canaveral. Launch Complex: LC17B. Launch Pad: -. Launch Vehicle: Delta. Model: Delta 2914. LV Configuration: Delta 2914 593/D108. SMS 2 Nation: USA. Payload: SMS B. Mass: 627 kg (1,382 lb). Class: Earth. Type: Weather. Spacecraft: SMS. Agency: NASA GSF. Perigee: 35,941 km (22,332 mi). Apogee: 36,060 km (22,400 mi). Inclination: 12.00 deg. Period: 1,447.10 min. COSPAR: 1975-011A. USAF Sat Cat: 7648. Completed Operations Date: 1982-08-11. Synchronous Meteorological Satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Americas at (GOES W) 115 deg W in 1975-1976; over the Pacific Ocean (GOES W) 135 deg W in 1976-1978; over the Atlantic Ocean (GOES E) 75 deg W in 1979-1981; over the Americas at 106 deg W in 1982 As of 29 August 2001 located at 123.04 deg W drifting at 2.760 deg W per day. As of 2007 Feb 27 located at 127.44E drifting at 2.742W degrees per day. References: 2, 6. 1975 February 9 - 00:24 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P155T/C Electrojet. ISRO-18.12 Atmospheric mission Nation: UK. Agency: SRC. Apogee: 170 km (100 mi). References: 2. 1975 February 9 - 00:24 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P154T/C. ISRO-18.09 Atmospheric mission Nation: UK. Agency: SRC. Apogee: 165 km (102 mi). References: 2. 1975 February 9 - 00:29 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P158T/C. ISRO-18.10 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 130 km (80 mi). References: 2. 1975 February 9 - 05:30 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P137T/C. ISRO-18.11 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 102 km (63 mi). References: 2. 1975 February 9 - 05:50 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Belier. Model: Centaure. LV Configuration: Centaure ISRO 5.23 CE-1. ISRO 5.23 Ionosphere mission Nation: India. Agency: ISRO. Apogee: 150 km (90 mi). References: 2. 1975 February 9 - 07:08 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P159T/C. ISRO-18.13 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 130 km (80 mi). References: 2. 1975 February 10 - 05:28 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache NASA 14.536UA. Extreme ultraviolet airglow Aeronomy mission Nation: USA. Agency: NASA. Apogee: 142 km (88 mi). References: 2. 1975 February 10 - Landing of Soyuz 17 Nation: USSR. Program: Salyut. Flight: Soyuz 17. Soyuz 17 landed at 11:03 GMT, 110 km NE of Tselinograd. 1975 February 11 - 02:16 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Javelin. LV Configuration: Javelin NASA 8.65UE. Plasma mission Nation: USA. Agency: NASA. Apogee: 791 km (491 mi). Final successful Javelin launch. References: 2. 1975 February 12 - 03:30 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53749-166. Cosmos 708 Nation: USSR. Mass: 650 kg (1,430 lb). Spacecraft: Sfera. Agency: MO SSSR. Perigee: 1,368 km (850 mi). Apogee: 1,410 km (870 mi). Inclination: 69.20 deg. Period: 113.60 min. COSPAR: 1975-012A. USAF Sat Cat: 7663. Investigation of the upper atmosphere and outer space. References: 2, 6. 1975 February 12 - 14:30 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 709 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 181 km (112 mi). Apogee: 310 km (190 mi). Inclination: 62.80 deg. Period: 89.40 min. COSPAR: 1975-013A. USAF Sat Cat: 7664. Duration: 13.00 days. Decay Date: 1975-02-25. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6. 1975 February 13 - 04:43 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache NASA 14.535UA. Auroral NO Aeronomy mission Nation: USA. Agency: NASA. Apogee: 136 km (84 mi). References: 2. 1975 February 13 - 13:50 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 200A. LV Configuration: Aerobee 200A NASA 26.40UE. Plasma mission Nation: USA. Agency: NASA. Apogee: 295 km (183 mi). References: 2. 1975 February 15 - 01:36 GMT - Launch Site: Kerguelen. Launch Complex: -. Launch Pad: -. Launch Vehicle: Stromboli. Model: Eridan. LV Configuration: Eridan E012B. ARAKS Eastward Ionosphere / plasma mission Nation: France. Agency: CNES. Apogee: 185 km (114 mi). References: 2. 1975 February 19 - 05:35 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Belier. Model: Centaure. LV Configuration: Centaure ISRO 5.25 CE-4. ISRO 5.25 CO.04 Ionosphere mission Nation: India. Agency: ISRO. Apogee: 160 km (90 mi). References: 2. 1975 February 19 - 08:37 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P156T/C. ISRO-18.15 Atmospheric mission Nation: UK. Agency: SRC. Apogee: 170 km (100 mi). References: 2. 1975 February 19 - 08:42 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P138T/C. ISRO-18.14 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 135 km (83 mi). References: 2. 1975 February 19 - 09:04 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Belier. Model: Centaure. LV Configuration: Centaure ISRO 5.24 CE-2. ISRO 5.24 Ionosphere mission Nation: India. Agency: ISRO. Apogee: 164 km (101 mi). References: 2. 1975 February 19 - 13:32 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P157T/C. ISRO-18.16 Atmospheric mission Nation: UK. Agency: SRC. Apogee: 165 km (102 mi). References: 2. 1975 February 20 - 23:35 GMT - Launch Site: Cape Canaveral. Launch Complex: LC36A. Launch Pad: -. Launch Vehicle: Atlas. Model: SLV-3D Centaur. LV Configuration: SLV-3D Centaur AC-33 / Centaur D-1AR 5015D. FAILURE: Staging electrical disconnect. Intelsat 4 F-6 Nation: International. Program: Intelsat. Mass: 1,410 kg (3,100 lb). Class: Communications. Spacecraft: Intelsat 4. Agency: Intelsat. COSPAR: F750220A. Decay Date: 1975-02-20. Staging electrical disconnect. Launch vehicle was to have put payload into geosynchronous transfer orbit References: 126, 278. 1975 February 24 - 05:25 GMT - Launch Site: Kagoshima. Launch Complex: M. Launch Pad: -. Launch Vehicle: Mu. Model: Mu-3C. LV Configuration: Mu-3C M-3C-2. SS-03 Taiyo Nation: Japan. Payload: SRATS. Mass: 86 kg (189 lb). Class: Earth. Type: Magnetosphere. Spacecraft: SS. Agency: ISAS. Perigee: 254 km (157 mi). Apogee: 3,125 km (1,941 mi). Inclination: 31.50 deg. Period: 120.20 min. COSPAR: 1975-014A. USAF Sat Cat: 7671. Decay Date: 1980-06-29. Examined solar radiation, thermospheric structure. SRATS (Solar and Thermospheric Radiation Satellite) is the third Japanese scientific satellite, to study the intereffects of solar radiation and the thermosphere of the earth. National name: Taiyo. Launch time 0525 GMT. References: 2, 6. 1975 February 25 - 01:35 GMT - Launch Site: Woomera. Launch Complex: LA2. Launch Pad: LA2 SL. Launch Vehicle: Skylark. Model: Skylark 7 AC. LV Configuration: Skylark 7 AC SL1301. X-ray telescope Solar x-ray mission Nation: UK. Agency: BAC. Apogee: 282 km (175 mi). References: 2. 1975 February 25 - 05:32 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache NASA 14.537UA. Auroral NO Aeronomy mission Nation: USA. Agency: NASA. Apogee: 138 km (85 mi). References: 2. 1975 February 26 - Kamanin in hospital. Nation: USSR. Kamanin has to go to the hospital for the first time in his life. References: 376. 1975 February 26 - Launch Site: Baikonur. Launch Complex: LC109. Launch Pad: -. Launch Vehicle: R-36M. Missile accuracy test launch Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 February 26 - 09:00 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 710 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 176 km (109 mi). Apogee: 335 km (208 mi). Inclination: 65.00 deg. Period: 89.60 min. COSPAR: 1975-015A. USAF Sat Cat: 7675. Duration: 14.00 days. Decay Date: 1975-03-12. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6. 1975 February 26 - 22:50 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.413-3. Gerdian Condenser Aeronomy mission Nation: USA. Agency: USAF CRL. Apogee: 104 km (64 mi). References: 2. 1975 February 27 - Launch Site: Baikonur. Launch Complex: LC142/34. Launch Pad: -. Launch Vehicle: Tsiklon. Model: R-36 8K67MA. State trials missile test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 February 28 - Launch Site: Woomera. Launch Complex: LA2. Launch Pad: LA2 SL. Launch Vehicle: Skylark. Model: Skylark 3 AC. LV Configuration: Skylark 3 AC SL1293. Ionosphere mission? Nation: UK. Agency: BAC. Apogee: 210 km (130 mi). References: 2. 1975 February 28 - Launch Site: Baikonur. Launch Complex: PU33. Launch Pad: -. Launch Vehicle: Tsiklon. Model: R-36 8K67MA. State trials missile test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 February 28 - 14:02 GMT - Launch Site: Plesetsk. Launch Complex: LC132/2. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53749-157. Cosmos 711 Nation: USSR. Program: Strela. Payload: Strela-1M no. 81. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,462 km (908 mi). Apogee: 1,492 km (927 mi). Inclination: 74.00 deg. Period: 115.50 min. COSPAR: 1975-016A. USAF Sat Cat: 7678. Eight satellites launched by a single carrier rocket. References: 2, 6. Cosmos 712 Nation: USSR. Program: Strela. Payload: Strela-1M no. 82. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,411 km (876 mi). Apogee: 1,490 km (920 mi). Inclination: 74.00 deg. Period: 114.90 min. COSPAR: 1975-016B. USAF Sat Cat: 7679. References: 2, 6. Cosmos 713 Nation: USSR. Program: Strela. Payload: Strela-1M no. 83. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,396 km (867 mi). Apogee: 1,487 km (923 mi). Inclination: 74.00 deg. Period: 114.70 min. COSPAR: 1975-016C. USAF Sat Cat: 7680. References: 2, 6. Cosmos 714 Nation: USSR. Program: Strela. Payload: Strela-1M no. 84. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,445 km (897 mi). Apogee: 1,491 km (926 mi). Inclination: 74.00 deg. Period: 115.30 min. COSPAR: 1975-016D. USAF Sat Cat: 7681. References: 2, 6. Cosmos 715 Nation: USSR. Program: Strela. Payload: Strela-1M no. 85. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,470 km (910 mi). Apogee: 1,504 km (934 mi). Inclination: 74.00 deg. Period: 115.70 min. COSPAR: 1975-016E. USAF Sat Cat: 7682. References: 2, 6. Cosmos 716 Nation: USSR. Program: Strela. Payload: Strela-1M no. 86. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,479 km (919 mi). Apogee: 1,514 km (940 mi). Inclination: 74.00 deg. Period: 115.90 min. COSPAR: 1975-016F. USAF Sat Cat: 7683. References: 2, 6. Cosmos 717 Nation: USSR. Program: Strela. Payload: Strela-1M no. 87. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,480 km (910 mi). Apogee: 1,536 km (954 mi). Inclination: 74.00 deg. Period: 116.20 min. COSPAR: 1975-016G. USAF Sat Cat: 7684. References: 2, 6. Cosmos 718 Nation: USSR. Program: Strela. Payload: Strela-1M no. 88. Mass: 40 kg (88 lb). Class: Communications. Type: Military Store-dump. Spacecraft: Strela-1M. Agency: MO SSSR. Perigee: 1,429 km (887 mi). Apogee: 1,489 km (925 mi). Inclination: 74.00 deg. Period: 115.10 min. COSPAR: 1975-016H. USAF Sat Cat: 7685. References: 2, 6. 1975 March 1 - 01:00 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Astrobee. Model: Astrobee D. LV Configuration: Astrobee D CRL A30.311-6. Infrared / OH Aeronomy mission Nation: USA. Agency: USAF CRL. Apogee: 111 km (68 mi). References: 2. 1975 March 1 - 06:55 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk NASA 18.159UE. Plasma mission Nation: USA. Agency: NASA. Apogee: 190 km (110 mi). References: 2. 1975 March 4 - 07:39 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Javelin. Model: Nike Javelin. LV Configuration: Nike Javelin DNA IC506.14-2. ICECAP 75A Auroral mission Nation: USA. Agency: DNA. Apogee: 130 km (80 mi). References: 2. 1975 March 5 - 16:36 GMT - Launch Site: Kiruna. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache SSC S16/2. SSC S16 / 2 Aeronomy mission Nation: Sweden. Agency: SSC. Apogee: 102 km (63 mi). References: 2. 1975 March 6 - Launch Site: Vandenberg. Launch Complex: LF06. Launch Pad: -. Launch Vehicle: Minuteman 1. Model: Minuteman 1B. Trident SFT-101 re-entry vehicle test flight Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi). References: 2. 1975 March 6 - 03:43 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Nike. Model: Nike Hydac. LV Configuration: Nike Hydac DNA IC507.11-1A. ICECAP 75A Auroral mission Nation: USA. Agency: DNA. Apogee: 150 km (90 mi). References: 2. 1975 March 6 - 06:16 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Nike. Model: Nike Hydac. LV Configuration: Nike Hydac DNA IC507.11-3. ICECAP 75A Auroral mission Nation: USA. Agency: DNA. Apogee: 150 km (90 mi). References: 2. 1975 March 7 - 00:22 GMT - Launch Site: Kiruna. Launch Complex: C. Launch Pad: -. Launch Vehicle: Belier. Model: Centaure 2C. LV Configuration: Centaure 2C SSC S13. SSC S13 Aeronomy mission Nation: Sweden. Agency: SSC. Apogee: 109 km (67 mi). References: 2. 1975 March 8 - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 200A. LV Configuration: Aerobee 200A NASA 26.32UG. Astronomy mission Nation: USA. Agency: NASA. Apogee: 250 km (150 mi). References: 2. 1975 March 10 - 04:41 GMT - Launch Site: Vandenberg. Launch Complex: SLC4W. Launch Pad: -. Launch Vehicle: Titan. Model: Titan 34B. LV Configuration: Titan 34B 34B-1 (3B-50) / Ascent Agena D. Jumpseat 4 Nation: USA. Mass: 700 kg (1,540 lb). Class: Sigint. Spacecraft: Jumpseat. Agency: NRO/USAF. Perigee: 295 km (183 mi). Apogee: 39,337 km (24,442 mi). Inclination: 63.50 deg. Period: 702.00 min. COSPAR: 1975-017A. USAF Sat Cat: 7687. References: 2, 6. 1975 March 10 - 09:12 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Nike. Model: Nike Hydac. LV Configuration: Nike Hydac DNA IC507.11-2A. ICECAP 75A Auroral mission Nation: USA. Agency: DNA. Apogee: 150 km (90 mi). References: 2. 1975 March 10 - 21:19 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 150A MII. LV Configuration: Aerobee 150A MII NASA 04.334UA. JHU Aurora 10 Aeronomy mission Nation: USA. Agency: NASA. Apogee: 172 km (106 mi). References: 2. 1975 March 11 - Launch Site: Wallops Island. Launch Complex: -. Launch Pad: -. Launch Vehicle: Strypi. Model: Strypi VIIR. MTV-II-2 re-entry vehicle test flight Nation: USA. Agency: Sandia. Apogee: 170 km (100 mi). References: 2. 1975 March 11 - 06:33 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Honest John. Model: HJ Nike Javelin. LV Configuration: HJ Nike Javelin DNA IC511.21-1A. ICECAP Aurora mission Nation: USA. Agency: ARPA/DNA. Apogee: 183 km (113 mi). References: 2. 1975 March 11 - 06:34 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Javelin. Model: Nike Javelin. LV Configuration: Nike Javelin DNA IC506.36-1. ICECAP 75A Auroral mission Nation: USA. Agency: DNA. Apogee: 130 km (80 mi). References: 2. 1975 March 12 - 02:32 GMT - Launch Site: Fort Churchill. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache NASA 14.416GA. Aeronomy mission Nation: USA. Agency: NASA. Apogee: 138 km (85 mi). References: 2. 1975 March 12 - 07:48 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Sergeant. Model: Sergeant Hydac. LV Configuration: Sergeant Hydac IC519.07-1B. ICECAP 75A Auroral mission Nation: USA. Agency: DNA/AFCRL. Apogee: 500 km (310 mi). References: 2. 1975 March 12 - 08:55 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 719 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 175 km (108 mi). Apogee: 307 km (190 mi). Inclination: 65.00 deg. Period: 89.30 min. COSPAR: 1975-018A. USAF Sat Cat: 7691. Duration: 13.00 days. Decay Date: 1975-03-25. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6. 1975 March 13 - 17:02 GMT - Launch Site: Kiruna. Launch Complex: -. Launch Pad: -. Launch Vehicle: Apache. Model: Nike Apache. LV Configuration: Nike Apache SSC S16/1. SSC S16 / 1 Aeronomy mission Nation: Sweden. Agency: SSC. Apogee: 106 km (65 mi). References: 2. 1975 March 14 - 04:52 GMT - Launch Site: Woomera. Launch Complex: LA2. Launch Pad: LA2 SL. Launch Vehicle: Skylark. Model: Skylark 6 AC. LV Configuration: Skylark 6 AC S98 (Astro 1/2). DLR W-GR-67 Solar x-ray mission Nation: Germany. Agency: DFVLR. Apogee: 270 km (160 mi). References: 2. 1975 March 15 - 04:10 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 350. LV Configuration: Aerobee 350 NASA 17.15UG. Astronomy mission Nation: USA. Agency: NASA. Apogee: 214 km (132 mi). References: 2. 1975 March 15 - 07:00 GMT - Launch Site: White Sands. Launch Complex: -. Launch Pad: -. Launch Vehicle: Aerobee. Model: Aerobee 200A. LV Configuration: Aerobee 200A NASA 26.39UG. JHU UVT F8 (Saturn) Ultraviolet astronomy mission Nation: USA. Agency: NASA. Apogee: 261 km (162 mi). References: 2. 1975 March 15 - 16:34 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P70T/C. ISRO-18.17 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 147 km (91 mi). References: 2. 1975 March 16 - Mariner 10 third flyby of Mercury Nation: USA. Spacecraft: Mariner 10. The third and final Mercury encounter yielded primarily fields and particles data. 1975 March 16 - Mariner 10, third Mercury Flyby Nation: USA. Spacecraft: Mariner 10. 1975 March 16 - 00:00 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P184T/C. ISRO-18.18 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 120 km (70 mi). References: 2. 1975 March 18 - Launch Site: Baikonur. Launch Complex: LC103. Launch Pad: -. Launch Vehicle: R-36M. SLI POR test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. 1975 March 18 - 08:27 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk NASA 18.165UE. Plasma mission Nation: USA. Agency: NASA. Apogee: 270 km (160 mi). References: 2. 1975 March 19 - 09:21 GMT - Launch Site: Thumba. Launch Complex: -. Launch Pad: -. Launch Vehicle: Petrel. Model: Petrel 1. LV Configuration: Petrel P185T/C. ISRO-18.19 Ionosphere mission Nation: UK. Agency: SRC. Apogee: 107 km (66 mi). References: 2. 1975 March 20 - X-24 Flight 48 Nation: USA. Payload: X-24B flight 20. Class: Manned. Type: Spaceplane. Spacecraft: X-24B. Crew: Love Michael. Maximum Speed - 1537 kph. Maximum Altitude - 21450 m. Flight Time - 409 sec. References: 49, 97. 1975 March 21 - 06:50 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Soyuz 11A511U. Cosmos 720 Nation: USSR. Payload: Zenit-4MT Mod. Mass: 4,000 kg (8,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MT. Agency: MOM. Perigee: 212 km (131 mi). Apogee: 273 km (169 mi). Inclination: 62.80 deg. Period: 89.30 min. COSPAR: 1975-019A. USAF Sat Cat: 7696. Duration: 11.00 days. Decay Date: 1975-04-01. Military topography satellite; returned film capsule. References: 2, 6. 1975 March 23 - 11:18 GMT - Launch Site: Poker Flat. Launch Complex: -. Launch Pad: -. Launch Vehicle: Tomahawk Sandia. Model: Nike Tomahawk. LV Configuration: Nike Tomahawk NASA 18.166UE. Plasma mission Nation: USA. Agency: NASA. Apogee: 230 km (140 mi). References: 2. 1975 March 24 - Mariner 10 deactivated Nation: USA. Spacecraft: Mariner 10. The vehicle was turned off after its onboard fuel was depleted. 1975 March 26 - 08:50 GMT - Launch Site: Plesetsk. Launch Complex: -. Launch Pad: -. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 721 Nation: USSR. Mass: 6,000 kg (13,200 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-2M. Agency: MOM. Perigee: 208 km (129 mi). Apogee: 228 km (141 mi). Inclination: 81.30 deg. Period: 88.90 min. COSPAR: 1975-020A. USAF Sat Cat: 7705. Duration: 12.00 days. Decay Date: 1975-04-07. Area survey photo reconnaissance satellite; returned film capsule; separated science capsule. References: 2, 6. Nauka Cosmos 721 Nation: USSR. Payload: Nauka. Spacecraft: Nauka. Agency: MOM. Perigee: 194 km (120 mi). Apogee: 215 km (133 mi). Inclination: 81.30 deg. Period: 88.59 min. COSPAR: 1975-020F. USAF Sat Cat: 7721. Decay Date: 1975-04-10. References: 2, 279. 1975 March 27 - Shuttle Enterprise fuselage complete. Nation: USA. Program: STS. Class: Manned. Type: Spaceplane. Spacecraft: Enterprise. References: 15. 1975 March 27 - Shuttle Columbia fuselage assembly starts. Nation: USA. Program: STS. Class: Manned. Type: Spaceplane. Spacecraft: Columbia. Start long-lead fabrication aft fuselage, Columbia (OV-102) References: 15. 1975 March 27 - 08:00 GMT - Launch Site: Baikonur. Launch Complex: LC1. Launch Pad: LC1 or LC31. Launch Vehicle: Soyuz. Model: Voskhod 11A57. Cosmos 722 Nation: USSR. Mass: 6,300 kg (13,800 lb). Class: Surveillance. Type: Military. Spacecraft: Zenit-4MK. Agency: MOM. Perigee: 204 km (126 mi). Apogee: 337 km (209 mi). Inclination: 71.40 deg. Period: 89.90 min. COSPAR: 1975-021A. USAF Sat Cat: 7709. Duration: 13.00 days. Decay Date: 1975-04-09. High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 2, 6. 1975 March 27 - 14:30 GMT - Launch Site: Plesetsk. Launch Complex: LC132/1. Launch Pad: -. Launch Vehicle: Kosmos 3. Model: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53721-268. Intercosmos 13 Nation: USSR. Program: DS. Payload: DS-U2-IK s/n 5. Mass: 400 kg (880 lb). Class: Earth. Type: Ionosphere. Spacecraft: DS-U2-IK. Agency: IK. Perigee: 284 km (176 mi). Apogee: 1,689 km (1,049 mi). Inclination: 83.00 deg. Period: 104.90 min. COSPAR: 1975-022A. USAF Sat Cat: 7710. Completed Operations Date: 1975-06-21. Decay Date: 1980-09-02. Upper atmospheric experiments. Study of dynamic processes in the earth's magnetosphere and polar ionosphere and investigation of low-frequency electromagnetic waves. References: 2, 6, 99, 116. 1975 March 30 - Launch Site: Baikonur. Launch Complex: LC105. Launch Pad: -. Launch Vehicle: R-36M. SLI POR test Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi). References: 2. Previous Home Next Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2008 except where otherwise noted.