Modular X-ray and Gamma-ray Sensor
Detection of Terrestrial Gamma-ray Flashes (TGF)
Set of two detectors senstive in the spectral bands from 15 keV to 400 keV (low energy) and from 200 keV to 40 MeV (high energy).
MXGS works in association to the Modular Multispectral Imaging Array (MMIA).
Array of 128 x 128 detectors nadir pointing over an 80° x 80° field of view. Time resolution 1-5 ms
2.8 km at s.s.p.
Coverage / Cycle
Limited to latitudes consistent with the ISS orbit inclination (51.6°)
Flown on an R&D satellite
2018 to ≥2022
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
Solar and space environment monitors Space radiometer or spectrometer
Subcomponent 3 Gamma-ray spectrometer [from GEO, HEO, MEO, LEO] X-ray spectrometer [from GEO, HEO, MEO, LEO]
Tentative Evaluation of Measurements
The following list indicates which measurements can
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
Gamma-ray flux 3 - high No specific limitation. Gamma-ray imager observing the Earth's surface to detect Terrestrial Gamma-ray Flashes (TGF)
X-ray flux 3 - high No specific limitation. X-ray imager observing the Earth's surface to detect Terrestrial Gamma-ray Flashes (TGF)