The SOHO mission: An overview
The SOHO mission: An overview
复制标题
DOI：
10.1007/978-94-009-0191-9_1
复制
发表时间：
1995-12
期刊：
影响因子：
2.8
通讯作者：
V. Domingo;B. Fleck;A. Poland
中科院分区：
文献类型：
--
作者：
V. Domingo;B. Fleck;A. Poland
太阳和日光层观测台（SOHO）是一项空间使命，是欧洲航天局（ESA）和美国国家航空航天局（NASA）合作开发的日地科学计划（STSP）的一部分。科学和技术支助计划是欧空局称为“空间科学-地平线2000”的长期方案的第一个“基石”。SOHO使命的主要科学目标是：（a）利用日震学技术更好地了解太阳内部的结构和动态;（B）更好地了解日冕形成和加热、维持日冕并使日冕加速进入太阳风的物理过程。为了实现这些目标，SOHO携带了由12套补充仪器组成的有效载荷。SOHO是一个三轴稳定航天器，总质量为1 850公斤;太阳能电池板将提供1 150瓦的电力。有效载荷重约640公斤，在轨道上将消耗450瓦。SOHO将由ATLAS II-AS发射，并将被放置在围绕日地L1拉格朗日点的光环轨道上，在那里它将以10角秒的精度连续指向太阳中心。在15分钟间隔内，指向稳定性将优于1弧秒。SOHO有效载荷产生40千比特/秒的连续科学数据流，每当太阳振荡成像仪器以高速率模式运行时，该数据流将增加160千比特/秒。美国宇航局的深空网络（DSN）将接收遥测数据。航天器和科学有效载荷的规划、协调和操作将在美国航天局戈达德航天飞行中心的实验操作设施进行。
The Solar and Heliospheric Observatory (SOHO) is a space mission that forms part of the Solar-Terrestrial Science Program (STSP), developed in a collaborative effort by the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA). The STSP constitutes the first “cornerstone” of ESA's long-term programme known as “Space Science — Horizon 2000”. The principal scientific objectives of the SOHO mission are a) to reach a better understanding of the structure and dynamics of the solar interior using techniques of helioseismology, and b) to gain better insight into the physical processes that form and heat the Sun's corona, maintain it and give rise to its acceleration into the solar wind. To achieve these goals, SOHO carries a payload consisting of 12 sets of complementary instruments. SOHO is a three-axis stabilized spacecraft with a total mass of 1850 kg; 1150 W of power will be provided by the solar panels. The payload weighs about 640 kg and will consume 450 W in orbit. SOHO will be launched by an ATLAS II-AS and will be placed in a halo orbit around the Sun-Earth L1 Lagrangian point where it will be continuously pointing to Sun centre with an accuracy of 10 arcsec. Pointing stability will be better than 1 arcsec over 15 min intervals. The SOHO payload produces a continuous science data stream of 40 kbits/s which will be increased by 160 kbits/s whenever the solar oscillations imaging instrument is operated in its highrate mode. Telemetry will be received by NASA's Deep Space Network (DSN). Planning, coordination and operation of the spacecraft and the scientific payload will be conducted from the Experiment Operations Facility (EOF) at NASA's Goddard Space Flight Center (GSFC).