Instrument: EUV (ICON)
Extreme Ultra Violet Imaging Spectrograph
To determine the altitude profile of the dayside ionospheric density through limb imaging in the extreme ultraviolet range.
Imaging spectrometer operating in the EUV range 55-90 nm
Limb sounding from a low-inclination LEO
0.48°. In the limb region: 300 km
Coverage / Cycle
Full interplanetary space and Earth's limb in 100 min (orbital period). Samplig at 1 image every 12 seconds.
Flown on an R&D satellite
2020 to ≥2024
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
No WIGOS subcomponents have been defined.
Primary mission objectives
Electron Density Ionospheric plasma density Secondary mission objectives Show all Show fewer
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
EUV flux spectrum 2 - very high No specific limitation. Earth's limb observed, coarse spectral resolution
Ionospheric plasma density 5 - marginal No specific limitation. EUV spectrometry of the Earth's limb
Electron Density 5 - marginal No specific limitation. EUV spectrometry of the Earth's limb