Figure 8.

Proton parameters relevant to DRI, derived from measurements made at RBSP A on orbit 2920. (a) Proton energies corresponding to the six trial values of magnetic moment M _res defined using the magnitude of the measured magnetic field. The yellow shading indicates the time interval of symmetric waves. (b) Variation of proton phase space density $\left({\mathcal{F}}_{{\mathrm{H}}^{+}}\right)$ evaluated at the selected magnetic moments. We define ${\mathcal{F}}_{{\mathrm{H}}^{+}}$ using 10 min averages of $j_{{\mathrm{H}}^{+}}$. (c) The same ${\mathcal{F}}_{{\mathrm{H}}^{+}}$ values plotted as a function of dipole L for the outbound and inbound legs.