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Instrument details
Acronym
EFD
Full name
Electric Field Detector
Purpose
To study the coupling of the E-Field in the near-Earth magnetosphere and in the ionosphere (in particular during substorms)
Short description
Electric field antenna coupled to an electron beam device. Range: 0.01-10 mV/m
Background
Part of a package of instruments to observe the Magnetosphere by navigating across its tail
Scanning Technique
Travelling cross the Magnetosphere in a highly-elliptical orbit
Resolution
N/A
Coverage / Cycle
Full magnetospheric volume; sampling at 0.016 s intervals
Mass
Power
Data Rate
Providing Agency
JAXA
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1992-10-02 to ≥2021
Last update:
2016-03-20
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
No WIGOS subcomponents have been defined.
Mission objectives
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 1 - primary No specific limitation. Magnetosphere. Electric field, wide dynamic range
Instrument: EFD