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Instrument details
Acronym
DIDM
Full name
Digital Ion Drift Meter
Purpose
Observation of the electric field along the orbit
Short description
It measures magnitude and direction of the incoming ion flux. The electric field is derived from the relationship between electric field, measured ion drift velocity and measured magnetic field strength. Plasma density measured from 10 to 1000000 particles/cm3
Background
Part of a package of instruments for Space Weather observationm
Scanning Technique
Crossing the magnetosphere in a drifting LEO
Resolution
N/A
Coverage / Cycle
Large fraction of magnetosphere and ionosphere
Mass
2.2 kg
Power
5 W
Data Rate
5 kbps
Providing Agency
NASA
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
2000 to 2010-09-19
Last update:
2017-04-22
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
Primary mission objectives Ionospheric plasma density Ionospheric plasma velocity Secondary mission objectives
Opportunity objectives Ionospheric Scintillation 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
Instrument: DIDM