BackForwardInstrument:  KSEM/MG 

Instrument details
Acronym KSEM/MG
Full name Korean Space Environment Monitor / Magnetometer
Purpose To measure the magnetic field in the platform environment
Short description 3-axis magnetometer operating in the range ±4 to ±64,000 nT with resolution ±1 nT @ maximum of the dynamics
Background Part of the Korean Space Environment Monitor (KSEM) together with a Particle Detector (PD) and a Charging Monitor (CM). Actually developed under the ESA THEMIS programme.
Scanning Technique In-situ measurement in GEO
Resolution N/A
Coverage / Cycle Sampling at 0.1 s intervals
Mass Power Data Rate


Providing Agency ESA
Instrument Maturity Flown on operational programme
Utilization Period: 2019-03-25 to ≥2029
Last update: 2021-10-02
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
  • Field or radiowave sensor
WIGOS Subcomponents
  • Subcomponent 1
  • Solar wind at L1 - Magnetometer
Mission objectives
Primary mission objectives
  • Geomagnetic field
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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
Geomagnetic field3 - highNo specific limitation.Platform, vectorial, wide dynamics, high resolution