BackForwardInstrument:  SWS/SEM/HEPD 

Instrument details
Acronym SWS/SEM/HEPD
Full name Space Weather Suite / Space Environment Monitor / High Energy Particle Detector
Purpose Space weather - Charged particles at platform level
Short description Spectrometer for electrons (0.25-2.0 MeV), protons (6.4-38 MeV) and alpha-particles (15-60 MeV)
Background Part of the SWS (Space Weather Suite) package
Scanning Technique N/A (in-situ in the platform environment)
Resolution N/A
Coverage / Cycle N/A
Mass Power Data Rate

 

Providing Agency CMA
Instrument Maturity Flown on operational programme
Utilization Period: 2018-02-10 to ≥2022
Last update: 2021-11-13
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
  • Energetic particle spectrometer
WIGOS Subcomponents
  • Subcomponent 1
  • Electron sensor at LEO
  • Proton sensor at LEO
  • Alpha-particle sensor at LEO
  • Plasma density sensor at LEO
  • Plasma temperature sensor at LEO
  • Plasma velocity sensor at LEO
Mission objectives
Primary mission objectives
  • Alpha particles differential directional flux
  • Electron differential directional flux
  • Proton differential directional flux
Secondary mission objectives
  • Solar wind density
  • Solar wind temperature
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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
Electron differential directional flux4 - fairNo specific limitation.Sun pointing, medium and high energy (over 40 to over 400 keV)
Proton differential directional flux4 - fairNo specific limitation.Sun pointing, high energy (over 1000 keV)
Alpha particles differential directional flux1 - primaryNo specific limitation.Sun-pointing. Low-medium energy range (<10 up to 100 MeV/n)
Solar wind density1 - primaryNo specific limitation.Solar viewing. Infrerred from Proton. Electron and Alpha-particle spectroscopy
Solar wind temperature1 - primaryNo specific limitation.Solar viewing. Infrerred from Proton. Electron and Alpha-particle spectroscopy
Solar wind velocity1 - primaryNo specific limitation.Solar viewing. Infrerred from Proton. Electron and Alpha-particle spectroscopy