Measurement of Extreme Ultraviolet Solar Radiation in Different Wavelength Intervals Onboard the CORONAS Satellites: Instruments and Main Results

Details Measurement of Extreme Ultraviolet Solar Radiation in Different Wavelength Intervals Onboard the CORONAS Satellites: Instruments and Main Results Measurement of Extreme Ultraviolet Solar Radiation in Different Wavelength Intervals Onboard the CORONAS Satellites: Instruments and Main Results

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sosyr..39..470n&link_type=abstract

Solar System Research, Volume 39, Issue 6, pp.470-478

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Scientific paper

The paper presents a brief review of the instruments developed for measurement of ionizing extreme UV solar radiation at wavelengths of less than 130 nm onboard the CORONAS-I and CORONAS-F satellites and summarizes the observation data. The main goal of the study was to obtain information concerning variations of fluxes of solar radiation and solar flares at various wavelengths in the extreme ultraviolet. SUFR radiometers based on the thermoluminescent method were mounted onboard both CORONAS satellites (CORONAS-I and CORONAS-F). They performed measurements at λ < 130 nm. Spectral measurements in the 30.4-nm line were made by the photoelectronic spectrometer VUSS tested on CORONAS-I. Spectral measurements in the waveband including the H Lα line (121.6 nm) were conducted by the VUSS-L instrument (a Lyman alpha spectrophotometer) onboard the CORONAS-F satellite. The basic characteristics of the instruments, which were supposed to be used in a system of space weather monitoring on patrol satellites of the hydrometeorological service of Russia, are presented. The main data on the solar radiation flux at λ < 130 nm for minimum and maximum solar activity are given for quiet conditions and during solar flares.

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