The released L2 data consist, for the first time, of the full Stokes vector and all results of the RTE inversion, which includes the full magnetic field vector (magnitude, inclination and azimuth), the longitudinal magnetic field, continuum intensity and the line of sight velocity. The data can be downloaded from the Solar Orbiter Archive (SOAR, http://soar.esac.esa.int/soar/), and essential information about the content of this release is provided here (see PHI section).
An overview of the released data, including quicklook thumbnails and information about the quality of each released data set, is available here. We suggest consulting that website before using the data set for scientific applications.
Two types of SO/PHI-FDT data exist which lead to the same data products described above and which cannot be distinguished from the filenames: non-averaged datasets and on-board averaged datasets. Until 21 February 2025, non-averaged datasets were the standard data product. Since 22 February 2025, datasets are generally acquired as on-board averages of three individual measurements as it improves the signal-to-noise ratio of the data. It should be noted that during both time ranges, datasets that differ from the respective standard mode also exist. All averaged datasets are marked as “averaged” in the “SOOP” column here and can be searched for accordingly. For data acquired since 22 February 2025, the number of on board averaged datasets can also be obtained from the FITS header keyword “ACCROWIT”.
Additional information about the scientific data can be found on the SO/PHI webpage www.mps.mpg.de/solar-physics/solar-orbiter-phi. If you need any help or if you have any special requests, please contact the PHI team at [email protected]. We would also be grateful for any feedback about problems or issues encountered in using SO/PHI data.