BackInstrument:  SFSI 

Instrument details
Acronym SFSI
Full name Solar Full-disk Spectrum Imager
Purpose To scan the solar photosphere and chromosphere
Short description
  • SFSI uses the Fe and Hα spectral lines to scan the full solar disk
  • It obtains the spectral information on the solar surface view to get the velocity field of the solar photosphere and chromosphere.
Background
  • New development
Scanning Technique
Resolution 1.5 arc sec (~1000 km at surface)
Coverage / Cycle Solar disk
Mass Power Data Rate

 

Providing Agency CMA
Instrument Maturity Flown on operational programme
Utilization Period: TBD
Last update: 2026-10-12
Detailed characteristics
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 future satellites

Instrument classification
  • Solar and space environment monitors
  • Solar activity monitor
WIGOS Subcomponents
  • Subcomponent 2
  • Solar magnetograph, solar EUV/X-ray imagery and EUV/X-ray irradiance, both on the Earth-Sun line and off the Earth-Sun line
  • Solar X-ray spectrometer [from L1, GEO, LEO]
  • Solar velocity field sensor [from L1, GEO, LEO]
Mission objectives
Primary mission objectives
  • Solar H-alpha image
  • Solar velocity fields
Evaluation of Measurements

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.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.