BackForwardInstrument:  KSEM-II HEEL 

Instrument details
Acronym KSEM-II HEEL
Full name Korea Space wEather Monitor / High Energy Electron Detector
Purpose To monitor the electron flux at platform level
Short description

Telescope for electrons of energy in the range 0.1-10 MeV 
Background

Part of the Korean Space wEather Monitor (KSEM) together with a high energy proton detector, a Magnetometer (MG), a Radiation/Charging Monitor (CM) and a solar X-ray detector.
Scanning Technique
Resolution N/A
Coverage / Cycle
Mass Power Data Rate

 

Providing Agency KARI
Instrument Maturity Flown on operational programme
Utilization Period: 2032 to 2039
Last update: 2025-06-09
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
  • In-situ plasma probes, and energetic particle spectrometers and magnetometers at GEO and LEO, and magnetic field at GEO
  • Electron sensor at GEO
Mission objectives
Primary mission objectives
  • Electron flux density
  • Electron flux energy 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
Electron integral directional flux5 - marginalNo specific limitation.Platform environment, medium and high energy (over 40 to over 400 keV)