The Ariane Passenger Payload Experiment was an experimental satellite. Apple was an experimental communication satellite successfully launched by ariane-1, from kourou,french guiana on june 19, 1981, exactly 35 years back, marking an important milestone in India’s space.

Ariane Passenger Payload Experiment
Mission typeCommunications
OperatorEADS Astrium
COSPAR ID1981-057B
SATCAT no.12545
Mission duration2 years, 3 months
Spacecraft properties
Manufacturer ISRO
Launch mass350 kilograms (770 lb)
Start of mission
Launch date19 June 1981
RocketAriane 1
Launch siteKourou ELA-1
End of mission
Deactivated19 September 1983
Orbital parameters
Reference systemGeocentric
Longitude102° East

The Indian space Research organisation (ISRO) has become one of the first picks for countries looking to launch satellites.

MissionExperimental geostationary communication[2]
Weight670 kg[2]
Onboard Power210 watts[2]
PayloadC-band transponders (Two)[2]
Launch DateJune 19, 1981[2]
Launch VehicleAriane -1(V-3)[2]
Mission lifeTwo years[2]