Instrument: IRIS (IRIS)
Interface Region Imaging Spectrograph
To obtain UV spectra and images with high resolution in space and time focused on the chromosphere and the transition region of the Sun
UV imaging spectrometer. Two bands: 1) Far UV, 1332-1358 Å and 1390-1406 Å, both with 40 mÅ resolution; and 2) Near UV, 2785-2835 Å with 80 mÅ resolution. Time resolution 1 s.
Sun pointing from a dawn-dusk LEO. CCD array of 1024x1024 pixels covering a field of view of 170 arcsec addressable within the Sun disk
250 km at Sun surface
Coverage / Cycle
Full solar disk at 1 s intervals
Flown on an R&D satellite
2013-08-28 to ≥2021
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 Solar activity monitor
No WIGOS subcomponents have been defined.
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
Solar UV flux spectrum 1 - primary No specific limitation. High spectral resolution, wide dynamic range
Solar UV image 1 - primary No specific limitation. Spectrometry with high spatial resolution