Total Electron Content (Tec) Measurement Instruments

Measurements > Gravity and Magnetic Fields > Gravity, Magnetic and Geodynamic measurements > Total electron content (TEC)
Measurement Definition: Number of electrons in between two points. Observed under more viewing angles so as to generate profiles by tomography - Physical unit: [ electrons/m2 ]; practical unit: TECU = 1016 electrons/m2 - Accuracy unit: [ % ].
InstrumentStatus/
Accuracy		Instrument DescriptionMeasurement TechnologyTimeline
m-NLPOperationalm-NLP measures the plasma around the Earth at a higher resolution than other Langmuir probe instruments that have been flown in space.n/a
RF BeaconOperationalTransmitter that enables ground-based measurement of ionospheric scintillation and ionospheric total electron content (TEC). Critical to understanding the impacts of space weather on satellite communication systems and GPS.n/a
SSULIOperationalMeasures vertical profiles of the natural airglow radiation from atoms, molecules and ions in the upper atmosphere and ionosphere.n/a
SWS/SEM/HEPDOperationalEnergetic particle spectrometer: Spectrometer for electrons (0.25-2.0 MeV), protons (6.4-38 MeV) and alpha-particles (15-60 MeV)n/a
SWS/SEM/IMS OperationalTo measure ionospheric electron temperature and density, and platform charge and dose. Specially arranged Langmuir Probe for electron temperature (0-1 eV) and density in the 10- 10^6 e/cm3 rangen/a
TGRSOperationalTGRS is the radio occultation receiver, which will receive signals from GPS, Galileo, and Glonass.GNSS radio-occultation receiver
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