Why (APPLE ARIANE PASSENGER PAYLOAD EXPERIMENT) WAS LUNCHED
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The Ariane Passenger PayLoad Experiment (APPLE), was an experimental communication satellite with a C-Band transponder launched by the Indian Space Research Organisation on June 19, 1981 by Ariane, a launch vehicle of the European Space Agency (ESA) from Centre Spatial Guyanais near Kourou in French Guiana.
Ariane Passenger Payload ExperimentMission typeCommunicationsOperatorEADS AstriumCOSPAR ID1981-057BSATCAT no.12545Mission duration2 years, 3 monthsSpacecraft propertiesManufacturer ISROLaunch mass350 kilograms (770 lb)Start of missionLaunch date19 June 1981RocketAriane 1Launch siteKourou ELA-1End of missionDeactivated19 September 1983Orbital parametersReference systemGeocentricRegimeGeostationaryLongitude102° East
APPLE was India's first three-axis stabilisedexperimental Geostationary communication satellite. On July 16, 1981, the satellite was positioned at 102° E longitude. The 672 kg satellite served as testbed of the Indian telecommunications space relay infrastructure despite the failure of one solar panel to deploy.
It was used in several communication experiments including relay of TV programmes and radio networking. It was a cylindrical spacecraft measuring 1.2 m in diameter and 1.2 m high. Its payload consisted of two 6/4 GHz transponders connected to a 0.9 m diameter parabolic antenna. It went out of service on September 19, 1983.
APPLE (Specifications)MissionExperimental geostationary communicationWeight670 kgOnboard Power210 watts PayloadC-band transponders (Two)Launch DateJune 19, 1981Launch VehicleAriane -1(V-3) OrbitGeosynchronous Mission lifeTwo years
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Ariane Passenger Payload ExperimentMission typeCommunicationsOperatorEADS AstriumCOSPAR ID1981-057BSATCAT no.12545Mission duration2 years, 3 monthsSpacecraft propertiesManufacturer ISROLaunch mass350 kilograms (770 lb)Start of missionLaunch date19 June 1981RocketAriane 1Launch siteKourou ELA-1End of missionDeactivated19 September 1983Orbital parametersReference systemGeocentricRegimeGeostationaryLongitude102° East
APPLE was India's first three-axis stabilisedexperimental Geostationary communication satellite. On July 16, 1981, the satellite was positioned at 102° E longitude. The 672 kg satellite served as testbed of the Indian telecommunications space relay infrastructure despite the failure of one solar panel to deploy.
It was used in several communication experiments including relay of TV programmes and radio networking. It was a cylindrical spacecraft measuring 1.2 m in diameter and 1.2 m high. Its payload consisted of two 6/4 GHz transponders connected to a 0.9 m diameter parabolic antenna. It went out of service on September 19, 1983.
APPLE (Specifications)MissionExperimental geostationary communicationWeight670 kgOnboard Power210 watts PayloadC-band transponders (Two)Launch DateJune 19, 1981Launch VehicleAriane -1(V-3) OrbitGeosynchronous Mission lifeTwo years
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