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

ASAT target for Cosmos 1174 interceptor. First in a series of tests to validate functioning of system after extended storage. References: 1 , 2 , 5 , 6 , 272 .

Manned two crew. Docked with Salyut 6. Carried crew comprising L I Popov and V V Ryumin to the Salyut-6 station to carry out scientific and technical research and experiments. Returned crew of Soyuz 36 to Earth. Recovered June 3, 1980 15:07 GMT. Landed 140 km SE Dzehezkazgan. References: 1 , 2 , 6 , 32 , 33 , 51 .

Replaced Cosmos 1109. Covered Oko constellation plane 9 - 240 degree longitude of ascending node. References: 1 , 2 , 5 , 6 , 100 .

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

ASAT interceptor. First test of ASAT after extended storage. Missed Cosmos 1171 target by a large distance; over the two following days two more attempts were made with the backup engine, but all failed. On 20 April the satellite was ordered to self-destruct in orbit, ending the longest ASAT interceptor mission. References: 1 , 2 , 5 , 6 , 272 .

Probable failed early warning. Investigation of the upper atmosphere and outer space. References: 1 , 2 , 5 , 6 , 64 , 65 .

Eight U.S. servicemen are killed and five are injured as helicopter and cargo plane collide in abortive desert raid to rescue American hostages in Teheran

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

Unmanned supply vessel for Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 29 Apr 1980 08:09:19 GMT. Undocked on 20 May 1980 18:51:00 GMT. Destroyed in reentry on 22 May 1980 00:44:00 GMT. Total free-flight time 3.32 days. Total docked time 21.45 days. References: 1 , 2 , 6 , 275 .

Ocean surveillance; nuclear powered; test flight of modified design. References: 1 , 2 , 5 , 6 .

Second flight test of Yantar-4K1 satellite. Demonstrated full spacecraft design duration of 45 days. High resolution 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 .

The first capsule - perhaps a prototype of a manned spacecraft design - was recovered from the South Pacific after a suborbital launch.

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

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

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

From Jiuquan to Pacific ocean, 10,000 km away. RV recovered. References: 87 .

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

RV impacted 1300 km short of recovery fleet. References: 87 .

The satellite never obtained orbit. Weight 92.2 kg. Mode B (435 MHz uplink and 145 MHz downlink) transponder and 145 MHz beacon. VHF and UHF helix wide beam antenna. References: 279 .

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 .

Transported the fifth international crew under the INTERCOSMOS programme, comprising V N Kubasov (USSR) and B Farkas (Hungary) to the Salyut-6 station to carry out scientific research and experiments. Returned crew of Soyuz 37 to Earth. Recovered July 31, 1980 15:15 GMT. References: 1 , 2 , 6 , 32 , 33 , 51 .

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

Unusable orbit; would have been NOAA 7. Atlas booster engine anomaly that led to the Atlas achieving the required separation conditions some 50 seconds late. The spacecraft ascent guidance software could not handle this large delay and the spacecraft achieved a totally unusable orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). References: 1 , 2 , 5 , 6 , 278 .

Test flight of new Soyuz T; docked with Salyut 6. Conducted testing and development of on-board systems in the improved Soyuz T series transport vehicle under piloted conditions. Recovered June 9, 1980 12:40 GMT. References: 1 , 2 , 6 , 32 , 33 , 51 .

3rd generation, high resolution photo surveillance; film capsule; maneuverable (?); also performed earth resource tasks. 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 .

Released 25 Romb radar calibration subsatellites. References: 1 , 2 , 5 , 6 .

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

Replaced Cosmos 1024. Covered Oko constellation plane 2 - 319 degree longitude of ascending node. References: 1 , 2 , 5 , 6 , 100 .

Stationed at 14 deg W. References: 1 , 2 , 5 , 6 , 67 , 111 , 274 .

KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). References: 1 , 2 , 5 , 6 .

First flight of prototype for Resurs-O1 spacecraft. Also performed remote sensing tasks. Acquisition of information required for continued investigation of the natural resources of the earth; development of remote sensing methods for measuring the status of the earth's surface and the atmosphere beneath the satellite. References: 1 , 2 , 6 , 113 .

ABM monitoring; may or may not have existed!!!. References: 1 , 2 , 5 , 6 , 172 .

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

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

Unmanned supply vessel for Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 1 Jul 1980 05:53:00 GMT. Undocked on 17 Jul 1980 22:21:00 GMT. Destroyed in reentry on 19 Jul 1980 01:47:00 GMT. Total free-flight time 3.19 days. Total docked time 16.69 days. References: 1 , 2 , 6 , 275 .