SPACE BASED COMMUNICATIONS TO REACH NEW HEIGHTS WITH AIRBUS IN 2018空客在2018年将空间通信提升至新高度

Jet Asia Pacific - - Jet News -

Airbus will mark new milestones next year with launches of innovative communications spacecraft that range from large, high-power relay platforms incorporating electric propulsion systems to compact, mass-produced units for a 900-satellite constellation providing affordable global internet access.

Starting off 2018 will be the orbiting of the Airbus-built SES14 for Luxembourg-based telecommunications satellite operator SES, scheduled for launch on 25 January. The 4-metric-tonne weight category spacecraft is based on Airbus’ reliable Eurostar platform in the E3000e variant – which exclusively uses electric propulsion for raising its altitude to geostationary orbit above Earth.

The fully-electric system replaces chemical propulsion that satellites traditionally use to reach and maintain orbit after deployment by their launch vehicle. This technological revolution in propulsion has tangible benefits: with chemical propulsion, half of a satellite’s mass at lift-off is made up of the propellant; electric propulsion eliminates a considerable part of the mass, enabling satellites to be lighter in weight or carry significantly increased payloads. 2018年,空客公司将打造创新型通信航天器,树立新的里程碑。这些航天器既包括集成电气推进系统的大型高功率中继平台,以及针对900颗卫星星群而批量生产、进而为全球提供低成本互联网接入的设备单元。

2018年,空客为总部位于卢森堡的通信卫星运营商SES制造的SES-14将进入轨道,发射日期定于1月25日。这颗4公吨级航天器是基于空客E3000e衍生型号中可靠的Eurostar平台而建造——完全采用电气推进飞离地球,进入同步轨道。

当运载火箭完成部署后,全电力推进系统将替代化学推进系统,后者曾被卫星用以抵达和保持轨道。这种推进方式的技术革命带来实际收益:采用化学推进时,推进剂占到了卫星发射时的一半重量;而电力推进则大大减轻了重量,使得卫星质量更轻或能承载更多负载。

Newspapers in Chinese (Simplified)

Newspapers from China

© PressReader. All rights reserved.