Second TKS flight that would have docked with the cancelled Almaz OPS 4 military space station. The spacecraft was instead flown unmanned to Salyut 7 as Cosmos 1443.

Photo surveillance; returned film capsule; maneuverable. References: 1 , 2 , 6 .

Radar calibration mission. References: 1 , 2 , 5 , 6 .

First flight of Space Transportation System (aka Space Shuttle).. Payloads: Development Flight Instrumentation and Aerodynamic Coefficient Identification Package. Additional Details: STS-1. References: 1 , 2 , 5 , 6 , 7 , 33 .

Photo surveillance; returned film capsule. References: 1 , 2 , 6 .

Photo surveillance; returned film capsule; maneuverable. References: 1 , 2 , 6 .

Ocean surveillance; nuclear powered. References: 1 , 2 , 5 , 6 .

SDS 4 not deployed. References: 1 , 2 , 5 , 6 .

TKS space station ferry. Flown unmanned to the Salyut 6 space station after the Almaz military station program was cancelled. Capsule recovered 24 May 1981. Docked with Salyut 6 on June 19 at 10:52 AM MT after 57 days autonomous flight. Deorbited and destroyed with Salyut July 29, 1982. Additional Details: Cosmos 1267. References: 1 , 2 , 5 , 6 , 67 , 274 , 439 .

Photo surveillance; returned film capsule; maneuverable. References: 1 , 2 , 6 .

Manned two crew. Docked with Salyut 6. Transported to the Salyut-6 orbital station the ninth international crew under the INTERCOSMOS programme, comprising L I Popov (USSR), and D. Prunariu (Romania), to conduct scientific research and experiments. Recovered May 22, 1981 13:58 GMT. References: 1 , 2 , 6 , 32 , 33 , 51 .

Gathering meteorological information and data on penetrating radiation fluxes in circumterrestrial space. References: 1 , 2 , 6 .

Area survey photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission. References: 1 , 2 , 6 , 69 .

Replaced Cosmos 1077. References: 1 , 2 , 5 , 6 .

Photo surveillance; returned film capsule. References: 1 , 2 , 6 .

Investigation of the natural resources of the earth in the interests of various branches of the national economy of the USSR and international cooperation. References: 1 , 2 , 6 , 103 .

Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). References: 1 , 2 , 5 , 6 .

Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit References: 1 , 2 , 5 , 6 , 278 .

Improved Transit. References: 1 , 2 , 5 , 6 .

Orbit too low. References: 5 .

Area survey photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission. References: 1 , 2 , 5 , 6 , 69 .

Military navigation satellite. Replaced Cosmos 1141. References: 1 , 2 , 5 , 6 .

Replaced Molniya 3-14. Operation of the long-range telephone and telegraph radio communications system in the USSR; transmission of USSR Central Television programmes to stations in the Orbita network and within the framework of international cooperation. References: 1 , 2 , 5 , 6 .

Investigation of the natural resources of the earth in the interests of various branches of the national economy of the USSR and international cooperation. References: 1 , 2 , 6 , 103 .

Photo surveillance; returned film capsule. References: 1 , 2 , 6 .

Experimental communications satellite. Geosynchronous altitude, longitude 10 deg East. References: 1 , 2 , 5 , 6 .

Launch vehicle test payload. Technological capsule. ESA registration ESA/81/02. Launch time 1233:03 UT. The technological capsule, equipped with batteries for a lifetime of about six orbital revolutions, transmits to earth technological data about test flight L-03 of ARIANE. After di scharge of the battery the capsule will stop its transmissions and remain in orbit on inactive status. Frequency 136-138 MHz (transmission until 65h after launch only). Projected time of reentry 1986. References: 1 , 2 , 5 , 6 .

Covered Oko constellation plane 3 - 357 degree longitude of ascending node. References: 1 , 2 , 5 , 6 , 100 .

Meteosat 2 is a geostationary meteorological satellite, operating within the world wide network of the World Weather Watch of WMO. Its main missions are: Imaging in the visible, IR and water vapour region of the spectrum; data reception from so-called dat a collection platforms (DCPs); data distribution to meteorological services and other interested parties (research institutes etc). Launch time 1233:03 UT. Geostationary position 0 deg E. Designator ESA/81/03. References: 1 , 2 , 5 , 6 .

Final launch of an Atlas F booster from Vandenberg AFB (first launch on 1 August 1962). References: 88 .

Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). References: 1 , 2 , 5 , 6 , 278 .

Replaced Molniya 1-42. Uncertain if Molniya-1T model was Molniya-1 or Molniya-1T. Operation of the long-range telephone and telegraph radio communications system in the USSR; transmission of USSR Central Television programmes to stations in the Orbita network. References: 1 , 2 , 5 , 6 .

Transmission of Central Television programmes to a network of receivers for collective use. References: 1 , 2 , 5 , 6 , 67 , 274 .