Members of ESA’s Solar Orbiter team watch expectantly as an essential part of the spacecraft is lowered into Europe’s largest vacuum chamber: the multi-layered shield that will protect their probe
PHI (Polarimetric and Helioseismic Imager)
Mission: Solar Orbiter (ESA)
Target: The Sun
PHI is aimed at mapping the vector magnetic field and the line-of-sight velocity of the solar photospheric plasma. It includes two telescopes (a full disk telescope and a high resolution one) to image the Sun, a Fabry-Pérot interferometer to do spectroscopy and liquid-crystal, variable retarders to do polarimetry.
Status: Phase C/D; testing of the QM (Qualified Model) and building of FM (Flight model) and FS (space) models.
IMaX is aimed at obtaining quasi-monochromatic images of all four Stokes parameters at several wavelengths in order to study the magnetic field and the velocity of the solar photosphere. Launches: Jun/2009 and Jun/2013.
Status: A second Sunrise flight successfully took place on June, 2013.