BackForwardInstrument:  SXUS 

Instrument details
Acronym SXUS
Full name Solar X-EUV Irradiance Sensor
Purpose To monitor EUV and X-rays from the solar disk
Short description Detailed description not yet available. Two units, to measure fluxes of EUV in the range 1-200 nm and X-ray in the range 2-20 keV (guess)
Background Similar to the GOES EXIS
Scanning Technique Sun pointing from GEO
Resolution N/A
Coverage / Cycle Full solar disk
Mass Power Data Rate


Providing Agency CMA
Instrument Maturity Flown on operational programme
Utilization Period: ≥2024 to ≥2031
Last update: 2021-12-16
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Solar and space environment monitors
  • Solar activity monitor
WIGOS Subcomponents
  • Subcomponent 1
  • X-ray spectrometer at GEO
  • Subcomponent 2
  • Solar X-ray spectrometer [from L1, GEO, LEO]
  • Solar EUV spectrometer [from L1, GEO, LEO]
  • Subcomponent 3
  • X-ray spectrometer [from GEO, HEO, MEO, LEO]
  • EUV spectrometer [from GEO, HEO, MEO, LEO]
Mission objectives
Primary mission objectives
  • Solar EUV flux
  • Solar X-ray flux
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Tentative Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
VariableRelevance for measuring this variableOperational limitationsExplanation
Solar X-ray flux3 - highNo specific limitation.Few channels, wide dynamic range
Solar EUV flux1 - primaryNo specific limitation.Several channels, wide dynamic range