BackForwardInstrument:  SORS 

Instrument details
Acronym SORS
Full name Solar Radiospectrometer
Purpose Observation of solar radio bursts and diagnosis of surrounding ionospheric plasma near the satellite
Short description Two sweeping receivers, in the frequency ranges 0.05-30 MHz and 25-300 GHz. A wide-band channel (4 MHz) analyses the detailed structure of the bursts in time scales of ms
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
Mass 18.5 kg Power 21.5 W Data Rate


Providing Agency Roscosmos
Instrument Maturity Flown on an R&D satellite
Utilization Period: 1994 to 2005
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
  • 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 radio wave sensor [from L1, GEO, LEO]
Mission objectives
Primary mission objectives
  • Solar radio 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 radio flux spectrum*4 - fairNo specific limitation.Moderate dynamic range