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Instrument details
Acronym
EFI (SWARM)
Full name
Electric Field Instrument
Purpose
Observation of the electric field along the orbit
Short description
Imaging electrostatic analyzer with electro-optical detection, including a Langmuir probe
Background
Part of a package of instruments for Solid Earth and Space Weather observation
Scanning Technique
Formation flight of 3 satellites in coordinated orbits for 3-D field reconstruction
Resolution
N/A
Coverage / Cycle
Large fraction of magnetosphere and ionosphere
Mass
6 kg
Power
10 W
Data Rate
6 kbps
Providing Agency
CSA
Instrument Maturity
Backed by strong heritage
Utilization Period:
2014-02-09 to ≥2022
Last update:
2021-12-10
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 Electric field sensor [in LEO and cross magnetosphere] Ionospheric electron density sensor [in LEO and cross magnetosphere] Ionospheric plasma density
Mission objectives
Primary mission objectives
Secondary mission objectives Electron Density Ionospheric plasma density Show all Show fewer
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
Variable Relevance for measuring this variable Operational limitations Explanation
Electric Field 4 - fair No specific limitation. Earth's limb. Electric field
Ionospheric plasma density 4 - fair No specific limitation. Earth's limb. Ionospheric plasma density
Electron Density 4 - fair No specific limitation. Platform. Electron density
Instrument: EFI (SWARM)