Fig. 5.

Energy spectra from the magneto tail, at X_MSO positions between −2.8 and −0.6 R_M, summed over a region one bin (0.2R_M) wide in the X direction, and summed over radial distances up to 1R_M. The x axis shows energy [eV] and the y. axis shows differential flux [m⁻² s⁻¹ sr⁻¹ s⁻¹ ]. The thick black line shows the energy spectrogram obtained in the most tailward part, the thick grey line the spectrogram from closest to the planet.