Max-Planck-Institut für Aeronomie, D-37191 Katlenburg-Lindau, Germany}
J Xray Sci Technol. 1997 Jan 1;7(3):249-55.
The Solar and Heliospheric Observatory (SOHO) spacecraft was launched on December 2, 1995, into a halo orbit around the first Lagrangian Point L1 between Sun and Earth, carrying into space a payload of twelve Sun observing instruments. Among them is a set of four complementary telescope/spectrometers to study phenomena and dynamics of the Sun's atmosphere in the far or extreme ultraviolet: The Extreme-Ultraviolet Imaging Telescope (EIT), the Coronal Diagnostic Spectrometer (CDS), the Solar Ultraviolet Measurements of Emitted Radiation (SUMER), and the Ultraviolet Coronagraph Spectrometer (UVCS). The spectral coverage of these instruments, which extents from 151 to 1610Å, allows remote sensing investigations of the solar atmosphere by means of spectroscopic and imaging techniques with a spatial resolution down to 1~arcsec. Each one of these instruments by itself is a technological achievement making use of normal incidence, grazing incidence, or multilayer optical techniques to cover the appropriate spectral ranges for each scientific objective. Many of the plasma diagnostic studies have been carried out during the first months of the mission, and this contribution will give an overview of the capabilities of each instrument and the types of observations being made by individual and joint operations.
太阳和日球层观测台（SOHO）飞船于 1995 年 12 月 2 日发射升空，进入日地第一拉格朗日点 L1 的晕轨道，携带有十二台太阳观测仪器。其中有四台互补的望远镜/分光计用于研究远紫外线或极紫外线中的太阳大气层现象和动力学：极紫外线成像望远镜（EIT）、日冕诊断分光计（CDS）、太阳发射辐射的紫外线测量计（SUMER）和紫外线日冕分光计（UVCS）。这些仪器的光谱覆盖范围从 151 到 1610Å，允许通过光谱和成像技术进行远程遥感探测，空间分辨率低至 1~arcsec。这些仪器中的每一个本身就是一项技术成就，利用正入射、掠入射或多层光学技术来覆盖每个科学目标的适当光谱范围。在任务的头几个月中进行了许多等离子体诊断研究，本贡献将概述每个仪器的功能以及个别和联合操作进行的观测类型。
