Solar X-ray and extreme-Ultraviolet Spectral fluxmeter (SXUS)
Description
Solar X-ray and extreme-Ultraviolet Spectral fluxmeter (SXUS) on FY-4C is a hyperspectral-resolution monitoring instrument for X-ray (0.05∼0.8 nm) and ultraviolet band (5~35 nm, 110~145 nm and 275~285 nm) fluxes which covers important characteristic spectral lines excited by moderately and highly ionized elements in regions such as the corona and chromosphere, with internationally leading technical indicators. It provides data products including solar flare classes, X-EUV spectra and radiation flux, issues early warnings for solar proton events, delivers source monitoring data for ionospheric and upper atmospheric forecasting. Its data can be applied to solar X-ray flare monitoring and space weather operational forecasting.
| Satellite | FY-4C |
|---|---|
| Band | X-ray, extreme-ultraviolet |
| Wavelength range (nm) | 0.05∼0.8 (X-ray) 5∼35, 110∼145 and 275∼285 (ultraviolet) |
| Spectral resolution (nm) | 0.1∼0.5 |
SXUS