THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements > Gravity and Magnetic Fields >
Gravity, Magnetic and Geodynamic measurements >
Magnetic field (vector)


Measurement Definition*: [Unit of measurement - n tesla]
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
CSC FVM
CSC fluxgate vector magnetometer
Operational
Measurements of the strength and direction of the Earth's magnetic field.n/a
GGAK-E
Module for Geophysical Measurements
Operational
Monitoring and forecasting of solar activity, radiation and magnetic field in the near-Earth space, monitoring of natural and modified magnetosphere, ionosphere and upper atmosphere.n/a
GGAK-M
Module for Geophysical Measurements (SEM)
Operational
Space Environmental Monitoring (SEM), heliogeophysical.n/a
GRACE instrument
GRACE instrument
Operational
Includes BlackJack Global Positioning System (Turbo Rogue Space Receiver) and High Accuracy Inter-satellite Ranging System (aka K-band Ranging System) for Inter-satellite ranging system estimates for global models of the mean and time variable Earth gravity field.n/a
Magnetometer (NOAA)
Magnetometer
Operational
 n/a
MGF
MaGnetic Field instrument
Operational
+/-0.06 nT
The MGF consists of dual, tri-axial fluxgate magnetometers mounted on an 80-cm carbon fibre boom for measurements of magnetic field perturbations to a precision of 0.0625 nanotesla, from which to infer small-scale field-aligned currents. The MGF is turned on an average of 20% of the time, following a schedule devised by the science team.n/a
PlasMag
Plasma-Magnetometer
Operational
Magnetometer and plasma sensor to measure solar wind properties for forecasting geomagnetic storms. The Plasma-mag instrument comprises a Faraday Cup (measures solar wind) and a Fluxgate Magnetometer, as well as two space weather instruments: the Electron Spectrometer and the Pulse Height Analyzer.n/a
SEISS
Space Environment In Situ Suite
Operational
Monitor proton, electron, and alpha particle fluxes.n/a
SEM (GOES)
Space Environment Monitor
Operational
Used for equipment failure analysis, solar flux measurement, solar storm warning, and magnetic and electric field measurement at satellite.n/a
SEM (POES)
Space Environment Monitor
Operational
Used for equipment failure analysis, solar flux measurement, solar storm warning, and magnetic and electric field measurement at satellite.n/a
SSJ/4
Special Sensor Precipitating Plasma Monitor
Operational
Measurement of transfer energy, mass, and momentum of charged particles through the magnetosphere-ionosphere in the Earth's magnetic field.n/a
SSJ/5
Special Sensor Precipitating Plasma Monitor
Operational
Measurement of transfer energy, mass, and momentum of charged particles through the magnetosphere-ionosphere in the Earth's magnetic field.n/a
SSM
Special Sensor Magnetometer
Operational
Measures geomagnetic fluctuations associated with solar geophysical phenomena. With SSIES and SSJ provides heating and electron density profiles in the ionosphere.n/a
STR
Star Tracker Set (3)
Operational
Precise attitude determination from the combination of two or three star trackers.n/a
VFM
Vector Field Magnetometer
Operational
Magnetic field vector measurements.n/a
GGAK-VE
Module for Geophysical Measurements
Approved
Monitoring and forecasting of solar activity, radiation and magnetic field in the near-Earth space, monitoring of natural and modified magnetosphere, ionosphere and upper atmosphere.n/a
Advanced GGAK-M
Advanced Module for Geophysical Measurements (SEM)
Proposed
Space Environmental Monitoring (SEM).n/a
* Description adapted from WMO.
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