The values of the total NeGIX index obtained during and after the geomagnetic storm of April 23–24, 2023 for the longitudinal sector correspond to those in Figures 4 and 5. Both the ascending (Earth’s day side) and descending (night side) parts of the Swarm A and C orbits were considered and each figure contains several passages of the satellites. The ascending passages on April 23 and the descending passages on April 24 took place under the most disturbed conditions (Kp index = 8). The NeGIX during these passages shows in general higher values.