Fig. 4

Differential flux measured using Geotail satellite, at different energies for 20–21 November 2003 at different phase of the storm for a H⁺ and b O⁺ c the corresponding time interval for pre-storm (green (0200–0400 UT), post-storm (blue (0600–0700 UT)) and main phase (red (1720–1820 UT)) is shown with the progress of geomagnetic storm d differential flux change with respect to energy at main phase of the storm for H⁺, He⁺ and O⁺ ions