Soyuz 21
E883030
Soyuz 21 was a 1976 Soviet crewed spaceflight that transported cosmonauts to the Salyut 5 space station for a long-duration military-related mission.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | crewed spaceflight ⓘ |
| apoapsis | ~350 km (approximate station orbit) ⓘ |
| callSign | “Baikal” NERFINISHED ⓘ |
| commander | Boris Volynov NERFINISHED ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crewMember |
Boris Volynov
NERFINISHED
ⓘ
Vitaly Zholobov NERFINISHED ⓘ |
| crewNationality | Soviet ⓘ |
| crewSize | 2 ⓘ |
| crewTransportRole | transported crew to Salyut 5 ⓘ |
| dockingDate | 1976-07-07 ⓘ |
| earlyTermination | yes ⓘ |
| earlyTerminationReason | crew health and environmental concerns on Salyut 5 ⓘ |
| flightEngineer | Vitaly Zholobov NERFINISHED ⓘ |
| followedBy | Soyuz 22 NERFINISHED ⓘ |
| inclination | ~51.6 degrees ⓘ |
| isPartOf | Salyut 5 long-duration expedition 1 NERFINISHED ⓘ |
| landingCountry | Soviet Union NERFINISHED ⓘ |
| landingDate | 1976-08-24 ⓘ |
| landingSite | Kazakh SSR NERFINISHED ⓘ |
| launchComplex | Baikonur Cosmodrome Site 1/5 NERFINISHED ⓘ |
| launchDate | 1976-07-06 ⓘ |
| launchSite | Baikonur Cosmodrome NERFINISHED ⓘ |
| launchVehicle | Soyuz-U NERFINISHED ⓘ |
| launchYear | 1976 ⓘ |
| missionDuration |
48 days
ⓘ
~1180 hours ⓘ |
| missionType |
long-duration space station mission
ⓘ
military-related mission ⓘ |
| operator | Soviet space program NERFINISHED ⓘ |
| orbitRegime | low Earth orbit ⓘ |
| periapsis | ~260 km (approximate station orbit) ⓘ |
| precededBy | Soyuz 20 NERFINISHED ⓘ |
| primaryObjective |
Earth observation
ⓘ
life sciences experiments ⓘ long-duration occupancy of Salyut 5 ⓘ materials science experiments ⓘ military reconnaissance experiments ⓘ |
| program | Soyuz program NERFINISHED ⓘ |
| returnTransportRole | returned crew from Salyut 5 ⓘ |
| spacecraftMassClass | ~6.8 metric tons (approximate for Soyuz 7K-T) ⓘ |
| spacecraftType | Soyuz 7K-T NERFINISHED ⓘ |
| spaceStationDocking | Salyut 5 NERFINISHED ⓘ |
| spaceStationProgram |
Almaz military space station program
ⓘ
Salyut program NERFINISHED ⓘ |
| spaceStationVisited | Salyut 5 NERFINISHED ⓘ |
| spaceStationVisitedInstanceOf | Almaz military space station ⓘ |
| undockingDate | 1976-08-24 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.