BackForwardInstrument:  RRI 

Instrument details
Acronym RRI
Full name Radio Receiver Instrument
Purpose To measure radio waves in the ULF and HF frequency range (up to 18 MHz)
Short description Four-channel ULF/HF digital radio receiver operating in burst mode when it is in the beams of cooperating HF ground radars of the international network for studying the Earth's upper atmosphere, ionosphere, and connection into space. The burst mode lasts during the acquisition phase of the orbital overflight (several minutes) of the ground radars.
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 N/A
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
  • Radio wave receiver [in LEO and cross magnetosphere]
Mission objectives
Primary mission objectives
  • Radio-waves
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
Radio-waves*1 - primaryNo specific limitation.Viewing across the magnetosphere, wide dynamic range