Magnetic connectivity of the observers to the solar surface on 28 October 2021 at 15:00 UT, from the field line tracing using the magnetic field data from the MAS model. The observers’ position is projected to the map and depicted with coloured circles. The Parker spirals connecting the observers to the low corona are shown with the dashed coloured lines and the footpoint of the spiral at 2.5 R_⊙ is shown with the coloured squares. The traced magnetic field lines are depicted with the coloured lines. The neutral line at 2.5 R_⊙ is shown with the white line. The background map is constructed using SDO/AIA images at 193 Å.