BackForwardInstrument:  MGF (CASSIOPE) 

Instrument details
Full name Magnetic Field Instrument
Purpose To characterise electric currents flowing to and from the high latitude (auroral) ionosphere
Short description Dual sensors to measure the vector magnetic field with a dynamic range of ± 65,536 nT, resolution ±16 nT @ maximum of dynamics, and sensitivity 0.0625 nT
Background Part of a package of instruments to study the Magnetosphere
Scanning Technique Travelling cross the Magnetosphere in a highly-elliptical orbit
Resolution N/A
Coverage / Cycle Large fraction of magnetosphere and ionosphere, sampling at 6 ms intervals
Mass Power Data Rate


Providing Agency CSA
Instrument Maturity Backed by strong heritage
Utilization Period: 2014 to 2021
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 2
  • Magnetospheric energetic particles and magnetometers
  • Geomagnetic field sensor [in LEO and cross magnetosphere]
Mission objectives
Primary mission objectives
  • Geomagnetic field
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
Geomagnetic field*2 - very highNo specific limitation.Magnetosphere, vectorial, wide dynamics, coarse resolution