Replaced Cosmos 655. Possible ELINT satellite. References: 1 , 2 , 5 , 6 .

High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 1 , 2 , 6 .

Solar probe. Solar Orbit (Heliocentric). 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). References: 1 , 2 , 5 , 6 .

Central Committee of the Communist Party and Council of Soviet Ministers Decree 46-13 'On course of work on Almaz and the TKS' was issued. References: 474 .

Military navigation satellite. References: 1 , 2 , 5 , 6 .

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 coope ration scheme). References: 1 , 2 , 5 , 6 .

Replaced Cosmos 631. Possible ELINT satellite. References: 1 , 2 , 5 , 6 .

Eight satellites launched by a single carrier rocket. References: 1 , 2 , 5 , 6 .

Area survey photo reconnaissance satellite; returned film capsule. References: 1 , 2 , 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 .

The Soviet space program was completely reformulated in a resolution of February 1976, which included authorisation to develop the free flyer in conjunction with the DOS-7/DOS-8 space station (which would eventually evolve into Mir).

Military navigation satellite. References: 1 , 2 , 5 , 6 .

TsK and SM Decree 'On USSR-France co-operation in space' was issued. References: 474 .

Investigation of the upper atmosphere and outer space. References: 1 , 2 , 5 , 6 , 99 .

Final launch of a Thor/Burner IIA from Vandenberg AFB (first launch on 14 October 1971). References: 88 .

High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 1 , 2 , 6 .

ASAT target. Beginning of test of 'second generation' ASAT interceptor. Objective was to complete test series by 1978 ABM treaty date. References: 1 , 2 , 5 , 6 , 272 .

The government decree 132-51 authorising development of the Energia-Buran system was titled 'On development of an MKS (reusable space system) consisting of rocket stages, orbiter aircraft, inter-orbital tug, guidance systems, launch and landing facilities, assembly and repair facilities, and other associated facilities, with the objective of placing in a 200 km Northeast orbit a payload of 30 tonnes and returning a payload of 20 tonnes'. The Ministry of Defence was named the Program Manager, with NPO Energia as the prime contractor. The official military specification (TTZ) was issued at the same time with the code name Buran.

ASAT interceptor. After intercept with target deorbited using on-board engine. References: 1 , 2 , 5 , 6 , 272 .

Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On work on Energia-Buran, DOS-7K nos. 7 and 8, Gamma. Geyzer (Potok), and Altair (Luch) and cancellation of the N1' was issued. The design of an improved model of the Salyut DOS-17K space station was authorised as part of the third generation of Soviet space systems in a decree. At that time it was planned that the two stations (DOS-7 and DOS-8) would be equipped with two docking ports at either end of the station and an additional two ports at the sides of the forward small diameter compartment. Luch and Potok were elements of the second generation global command and control system (GKKRS) deployed in the first half of the 1980's. Luch satellites, analogous to the US TDRS, provided communications service to the Mir space station, Buran space shuttle, Soyuz-TM spacecraft, military satellites, and the TsUPK ground control center. They also served to provide mobile fleet communications for the Soviet Navy. References: 474 .

Defense Meteorological Satellite Program; unusable orbit. Last of the Thor Burner missions. References: 1 , 2 , 5 , 6 .

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

Fourth Yantar-2K second generation reconnaissance flight and the first with two SpK small film recovery capsules. First flight of the completely equipped satellite. The main reentry capsule and its film cargo were returned successfully. Both SpK capsules successfully separated from the Yantar in the course of the flight, but neither was recovered. The parachutes of the first did not deploy and the capsule crashed into the ground. The solid motor of the second capsule did not fire as programmed and the capsule did not deorbit at the expected time. References: 1 , 2 , 6 , 69 .

Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On long-range military use of space up to 1990' was issued. References: 474 .

Ionospheric sounding. Japanese Ionospheric Sounding Satellite (JISS - national name 'Ume') is intended for regular observations by means of radio waves of the global distribution of the critical frequencies of the ionosphere, and for utilization of the results of the observati on for radio wave forecasts and warning necessary for effective operation of short-wave radio-communication. Time of launch 0330UT. References: 1 , 2 , 5 , 6 .

Payload bay doors on dock, Palmdale, Enterprise (OV-101) References: 15 .

High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 1 , 2 , 6 .

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 coope ration scheme). Uncertain if Molniya-1T model was Molniya-1 or Molniya-1T. References: 1 , 2 , 5 , 6 .

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

Complete final assembly and closeout system installation. References: 15 .

Spacecraft engaged in practical applications and uses of space technology such as weather or communication. Also tested pulsed plasma engines. References: 1 , 2 , 5 , 6 .

Spacecraft engaged in practical applications and uses of space technology such as weather or communication. Also tested pulsed plasma engines. References: 1 , 2 , 5 , 6 .

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

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

Start functional checkout, Enterprise (OV-101). References: 15 .

Central Committee of the Communist Party and Council of Soviet Ministers Decree 'On the Creation of a Universal Space Missile Complex 11K77 'Zenit'--approval of work on the Zenit launcher' was issued. References: 474 .

Complete premate MPTA test structure, Downey, and deliver to Palmdale References: 15 .

Area survey photo reconnaissance satellite; returned film capsule. References: 1 , 2 , 6 .

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 coope ration scheme). References: 1 , 2 , 5 , 6 .

High resolution photo reconnaissance satellite; returned film capsule; maneuverable. References: 1 , 2 , 6 .

KH-8 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). References: 1 , 2 , 5 , 6 .

Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule. References: 1 , 2 , 6 .