A skymap representation of the combined EAS FOV in the spacecraft (SC) reference frame. The centre of the plot is aligned with the X-axis, 90° in longitude with the Y-axis, and latitude corresponds to the Z-axis. The angular bins are shown in blue for EAS 1 and in red for EAS 2. Two elevation bins of the EAS 1 head are filled with data obtained during one scan in the instrument Burst Mode (BM). The magnetic field direction is marked with a black dot (+B) and a black cross (−B).