|
The Eurostar E3000 is a generic satellite model most commonly used for commercial and military communications satellites manufactured by Astrium. It is a member of Astrium's Eurostar family. It utilises a chemical, bi-propellant propulsion system for orbit raising and on-station manoeuvres with an optional plasma propulsion system (PPS). The PPS harnesses the Newtonian effect as a result of the ionisation of xenon gas employed by the use of Hall effect plasma thrusters. This system is most commonly used for North-South station-keeping. The E3000 was the first commercial satellite family to use lithium-ion batteries rather than the older nickel-based technologies for power supply during eclipses. The E3000 bus can be modified extensively to meet customer requirements, but most of the E3000 satellites have a launch mass of between , and solar arrays between providing between nine and sixteen kilowatts at end of life. They tend to feature between 50 and 90 transponders, most often in the and C-band. Satellites built around the E3000 platform include Hispasat's Amazonas 1 and 2, Arabsat 5A, 5B, and 5C, Astra 1M, 1N, 2E, 2F, 2G, 3B and 5B, Eutelsat's W3A and Hot Bird 8-10, Intelsat 10-02, KaSat, Atlantic Bird 7, W5A Telesat's Anik F1R, Anik F3 and Nimiq 4, Skynet 5A-C and the Inmarsat 4 series of satellites; Each of the three Inmarsat 4 in service has a large deployable reflector as the main antenna. In March 2015 Airbus Defence and Space received a delivery of new 3D printed brackets for mounting Telemetry and Tele-Command antennas, being the first space-qualified 3D printed component of its kind. Also in March, Airbus signed a contract with Snecma for 5-kilowatt PPS5000 Hall effect thrusters for the E3000 Electric Orbit Raising variant of the satellite bus. New thrusters would allow reducing the weight of satellite up to 40%. ==References== *(Astrium's page about the satellite. ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Eurostar E3000」の詳細全文を読む スポンサード リンク
|