Venera 11

E490423

Venera 11 was a Soviet space probe launched in 1978 as part of the Venera program to study Venus’s atmosphere and surface.

All labels observed (1)

Label Occurrences
Venera 11 canonical 2

How this entity was disambiguated

Statements (52)

Predicate Object
instanceOf space probe
atmosphericEntryDate 1978-12-25
cameraSystem failed to operate on surface
COSPARId 1978-084A
countryOfOrigin Soviet Union
descentParachute jettisoned before surface impact
used in upper atmosphere
heatShield used for atmospheric entry
landingModuleMass 1560 kg
landingSite Venus dayside, near equator (approximate)
landingSystem aerodynamic braking, parachute, then free-fall landing
launchDate 1978-09-09
launchMass 4970 kg
launchSite Baikonur Cosmodrome
Baikonur Cosmodrome Site 81/24
linked to: Baikonur Cosmodrome
launchVehicle Blok DM upper stage
linked to: Blok D upper stage

Proton-K rocket
linked to: Proton rocket
manufacturer Lavochkin Association
missionDuration about 95 days (cruise to Venus)
missionOutcome partially successful
missionTarget Venus
missionType atmospheric study
planetary science
surface study
notableResult detailed vertical profile of Venus atmosphere
measurements of cloud composition and structure
surface gamma-ray data on Venusian rocks
operatedBy Soviet Academy of Sciences
orbitalFlyby performed by carrier bus after probe release
partOf Venera program
linked to: Venera missions
powerSource solar panels
predecessor Venera 10
program Venera
radioFrequency decimetric band for communications
scientificInstruments charged particle detectors
gamma-ray spectrometer
gas chromatograph
magnetometer
mass spectrometer
nephelometer
photometers
radio science experiment
spacecraftBus 4V-1
spacecraftType flyby bus with atmospheric entry probe
successor Venera 12
surfaceOperationsDuration about 95 minutes
surfacePressureMeasured approximately 89 atmospheres
surfaceTemperatureMeasured approximately 452 °C
telemetry transmitted data during descent and on surface
twinMission Venera 12
venusLanding successful
venusLandingDate 1978-12-25

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Venera 10 followedBy Venera 11