PMI: The Photospheric Magnetic Field Imager

Jan Staub, German Fernandez-Rico, Achim Gandorfer, Laurent Gizon, Johann Hirzberger, Stefan Kraft, Andreas Lagg, Jesper Schou, Sami K. Solanki, Jose Carlos Del Toro Iniesta, Thomas Wiegelmann, Joachim Woch

Research output: Contribution to journalArticlepeer-review


We describe the design and the capabilities of the Photospheric Magnetic field Imager (PMI), a compact and lightweight vector magnetograph, which is being developed for ESA's Lagrange mission to the Lagrange L5 point. After listing the design requirements and give a scientific justification for them, we describe the technical implementation and the design solution capable of fulfilling these requirements. This is followed by a description of the hardware architecture as well as the operations principle. An outlook on the expected performance concludes the paper.

Original languageEnglish (US)
Article number10
JournalJournal of Space Weather and Space Climate
StatePublished - 2020


  • Instrumentation: magnetographs
  • Sun: activity
  • Sun: magnetic fields
  • Techniques: polarimetric

ASJC Scopus subject areas

  • Atmospheric Science
  • Space and Planetary Science


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