Abstract
In order to meet the growing demand for high performance C- and Ku-Band services in the Americas, INTELSAT contracted with Astrium in February 2000 to procure a high capacity communications spacecraft for its 310°E operational location. The spacecraft platform is based on Astrium's next generation platform, the Eurostar 3000. Several new technologies such as integrated Data Handling System, Plasma Propulsion System, etc. are integral features of this platform. The communication payload comprises 36 C-Band and 20 high power Ku-Band transponders. The beam coverages are tailored for the 310°E orbital location and are implemented using a hybrid shaped antenna design approach, where multiple C-Band coverages are generated from a single shaped reflector utilizing a pair of Tx/Rx feed horns for each coverage. The Ku-Band coverages are generated by the classical dual Gregorian shaped reflector antenna design approach. With a total dry mass on the order of 2650 kg and a separated launch mass of 5400 kg, the spacecraft is compatible with most of the available launch vehicles providing mission life of greater than 13 years. The paper will provide technical details of the spacecraft.
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