Eight electrostatic analyzers and pulse height discriminators operating in two ranges: 0.05-1 keV and 1-20 keV, each measurement independently for electrons and protons.
Monitoring and calibration informationĀ here
Part of the packages named SEM (Space Environment Monitor) until NOAA-14, and SEM/2 (Space Environment Monitor - 2) from NOAA-15 onward and on MetOp
N/A (in-situ measurement in the platform environment)
Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites
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.