|UVCS, Ultraviolet Coronagraph Spectrometer
|The SOHO Ultraviolet Coronagraph Spectrometer (UVCS/SOHO) is composed of three reflecting telescopes with external and internal occultation and a spectrometer assembly consisting of two toric grating spectrometers and a visible light polarimeter. The purpose of the UVCS instrument is to provide a body of data that can be used to address a broad range of scientific questions regarding the nature of the solar corona and the generation of the solar wind. The primary scientific goals are the following: to locate and characterize the coronal source regions of the solar wind, to identify and understand the dominant physical processes that accelerate the solar wind, to understand how the coronal plasma is heated in solar wind acceleration regions, and to increase the knowledge of coronal phenomena that control the physical properties of the solar wind as determined byin situ measurements. To progress toward these goals, the UVCS performs ultraviolet spectroscopy and visible polarimetry to be combined with plasma diagnostic analysis techniques to provide detailed empirical descriptions of the extended solar corona from the coronal base to a heliocentric height of 12 solar radii.
|UVCS (UltraViolet Coronograph Spectrometer) made measurements of the solar corona between 1.3 and 12 solar radii from sun center with high spectral and spatial resolution. The instrument creates an artificial solar eclipse in ultraviolet light, and allowed observation of the less intense light from the extended corona.The corona emits most of its ultraviolet intensity in spectral emission lines, containing information of the highly-ionized coronal plasma. At UV wavelengths
The purpose of the UVCS is to provide a detailed description of the extended solar corona that can be used to address a broad range of scientific questions regarding the nature of the solar corona and the generation of the solar wind.
For the moment, Level-1 data are available at ESA, calibrated level 2 will eventually be included. It is processed raw data which has been decompressed and repacked into data files in a logical form representative of the data products as delivered by the UVCS instrument. Level-1 data is stored in a standard external storage protocol (FITS files). Types of Level-1 data are the following
|Kohl, J.L., et al., The Ultraviolet Coronagraph Spectrometer for the solar and heliospheric observatory, Sol. Phys., 162, 313–356 (1995); https://doi.org/10.1007/BF00733433
|1996 - 19 January 2013
|SOHO, the Solar & Heliospheric Observatory, is a project of international collaboration between ESA and NASA to study the Sun from its deep core to the outer corona and the solar wind. SOHO was launched on December 2, 1995. The SOHO spacecraft was built in Europe by an industry team led by prime contractor Matra Marconi Space (now Airbus) under overall management by ESA. The twelve instruments on board SOHO were provided by European and American scientists. Nine of the international instrument consortia are led by European Principal Investigators (PI's), three by PI's from the US. Large engineering teams and more than 200 co-investigators from many institutions supported the PI's in the development of the instruments and in the preparation of their operations and data analysis. NASA was responsible for the launch and is now responsible for mission operations. Large radio dishes around the world which form NASA's Deep Space Network are used for data downlink and commanding. Mission control is based at Goddard Space Flight Center in Maryland.
Domingo, V., Fleck, B. & Poland, A.I., The SOHO mission: An overview, Sol. Phys., 162, 1–37, 1995; https://doi.org/10.1007/BF00733425
|Strachan, L., Principal Investigator, NRL, USA, email@example.com
|Publisher And Registrant
|European Space Agency
|When publishing any works related to this experiment, please cite the DOI found herein.