The wisp inside SAA observed by MSS1-A and B consecutively on 21st Sep. 2023. (IMAGE)

Science China Press

The wisp inside SAA observed by MSS1-A and B consecutively on 21st Sep. 2023.

Caption

Panel (a) shows the trajectory of MSS1-A crossing the SAA on a geographic map, the color indicates the integral flux of 40-750 keV electrons, accompanied by L-shell contour lines. The star marks the start position of the trajectory. Panel (b) shows the spectrogram of the electron omni differential flux, the wisp can be seen as an energy-dispersed spike. The real-time L-shell is shown with the white dashed line along the ordinate on the right. Panel (c) presents the electron omni differential flux of several energy bands with lines of different colors. Panel (d-f) are in the same format, capturing observations from MSS1-B approximately 8 minutes later.

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