BackForwardInstrument:  SoLEXS 

Instrument details
Acronym SoLEXS
Full name Solar Low Energy X-ray Spectrometer
Purpose To monitor the X-ray flares for studying the heating mechanism of the solar corona.
Short description X-ray spectrometer for the range 1-30 keV. Spectrral rsolution <250 eV @ 5.9 keV to measure the large variation in flux
Background New development
Scanning Technique Full disc and corona, 1° FOV (disc about 0.5°)
Resolution N/A
Coverage / Cycle 1* FOV
Mass Power Data Rate


Providing Agency ISRO
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2022 to 2027
Last update: 2021-12-02
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 2
  • Solar magnetograph, solar EUV/X-ray imagery and EUV/X-ray irradiance, both on the Earth-Sun line and off the Earth-Sun line
  • Solar X-ray spectrometer [from L1, GEO, LEO]
Mission objectives
Primary mission objectives
  • Solar X-ray flux spectrum
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
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Solar X-ray flux spectrum*3 - highNo specific limitation.Coarse spectral resolution, wide dynamic range, disc and corona view included