Multiband Ionospheric Ultra-Violet Spectrum Imager
To measure the daytime atomic–molecular ratio and the nightime ionospheric density altitude distribution
Detailed description not yet available. The instrument collects spectral images of Earth’s UV emission from 132 to 162 nm, with resolution <2 nm
Earth's disk scanning with the field of view 14°× 0.08° at a 66.7(night) or 6.7 (day) minute cadence.
14°× 0.08° at the s.s.p.
Coverage / Cycle
Earth's disk sampling at 66.7 min rate in nightime and 6.7 min rate in daytime
Flown on operational programme
≥2025-02 to ≥2032
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
Ionospheric plasma density UV flux Secondary mission objectives
Opportunity 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
UV flux 2 - very high No specific limitation. Earth's limb and surface observed, moderate dynamic range
UV sky image 2 - very high No specific limitation. Earth's limb observed, coarse spatial resolution
Ionospheric plasma density 5 - marginal No specific limitation. UV imaging spectrometer measuring ionospheric plasma density in the Earth's limb
Electron Density 5 - marginal No specific limitation. UV spectrometry of the Earth's limb