INSAT-3D was developed by the Indian Space Research Organisation (ISRO) and carries weather forecasting payloads along with a search and rescue relay system. Its liftoff mass will be approximately 2,100 kilograms.
As part of the pre-launch checkout process, INSAT-3D underwent a test deployment of its solar panels in the spaceport’s clean room facilities – which is a typical checkout step performed by ISRO with its satellites once they are in French Guiana.
Riding as co-passenger on the upcoming Ariane 5 flight is Europe’s Alphasat, which is ranked as one of the world’s most sophisticated communications satellites. Alphasat carries a new-generation advanced mobile L-band communications payload along with four technological demonstration payloads for the European Space Agency (ESA).
Built by Astrium, Alphasat will have a mass of more than six metric tons at launch, and is to be operated under an agreement between the ESA and European commercial satellite operator Inmarsat.
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