BackForwardInstrument:  IRIS (Coronas) 

Instrument details
Acronym IRIS (Coronas)
Full name Solar Burst Spectrometer
Purpose Study of the integral intensities and X-ray spectra
Short description Spectrometer for the energy channels 2-4, 4-8, 8-12, 12-20, 20-30, 30-40, 40-60, 60-90, 90-120, 120-150, 150-200 and 200-300 keV
Background Consolidated technology
Scanning Technique Sun pointing from a LEO high-inclination drifting orbit
Resolution N/A (full disk)
Coverage / Cycle Full Sun disk integral at about 10-ms rate
Mass 30 kg Power Data Rate


Providing Agency Roscosmos
Instrument Maturity Flown on an R&D satellite
Utilization Period: 1994 to 1994-07-15
Last update: 2017-05-17
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 No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Solar X-ray flux spectrum
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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 flux spectrum3 - highNo specific limitation.Coarse spectral resolution, wide dynamic range