BackForwardInstrument:  PMI 

Instrument details
Acronym PMI
Full name Photospheric Magnetic Field Imager
Purpose Monitors magnetic activity on the Sun.
Short description Optically-modified version of high resolution telescope of PHI on Solar Orbiter mission https://space.oscar.wmo.int/instruments/view/phi It images the full solar disk.
Background Provides basis for calculating background solar wind needed to forecast Coronal Mass Ejection (CME) arrival at Earth.
Scanning Technique N/A
Resolution Spatial resolution 2 arc secs
Coverage / Cycle Full solar disk, Cadence 30 mins
Mass Power Data Rate

 

Providing Agency ESA
Instrument Maturity Backed by strong heritage
Utilization Period: 2025 to 2035
Last update: 2022-07-18
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 coronagraph and heliospheric imagery both on the Earth-Sun line and off the Earth-Sun line (e.g. L5 point)
  • Solar coronographic imager [from solar orbit, ecliptic, L5]
Mission objectives
Primary mission objectives
  • Solar electric field
  • Solar magnetic field
  • Solar wind density
  • Solar wind velocity
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.
VariableRelevance for measuring this variableOperational limitationsExplanation
Solar VIS flux spectrum1 - primaryNo specific limitation.High spectral resolution, moderate dynamic range, polarimetry and Doppler shift exploited
Solar VIS image1 - primaryNo specific limitation.Spectrometry with high spatial resolution, polarimetry and Doppler shift exploited
Solar magnetic field*1 - primaryNo specific limitation.Spectrometry with high spatial resolution, polarimetry and Doppler shift exploited
Solar electric field*1 - primaryNo specific limitation.Spectrometry with high spatial resolution, polarimetry and Doppler shift exploited
Solar velocity fields1 - primaryNo specific limitation.Spectrometry with high spatial resolution, polarimetry and Doppler shift exploited