BackForwardInstrument:  ST/2 

Instrument details
Acronym ST/2
Full name Galactic gamma-ray spectrometer
Purpose To measure the differential energy spectra of solar hard X-ray and gamma-ray radiation
Short description Description not available. Covered spectral range 0.02-10.0 MeV
Background Part of the instrument package carried by the 5 satellite of the Ionozonde constellation
Scanning Technique Sun pointing from a drifting LEO
Resolution N/A (full disk)
Coverage / Cycle Full solar disk at about 1 s intervals
Mass Power Data Rate

 

Providing Agency Roscosmos
Instrument Maturity Flown on an R&D satellite
Utilization Period: ≥2017 to ≥2020
Last update: 2017-05-19
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
Mission objectives
Primary mission objectives
  • Solar X-ray flux spectrum
  • Solar gamma-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 gamma-ray flux spectrum2 - very highNo specific limitation.Moderate dynamic range, but associated to X-ray observation
Solar X-ray flux spectrum3 - highNo specific limitation.Coarse spectral resolution, wide dynamic range