  The release of plasma in the jovian magnetotail is observed in the form of
plasmoids, travelling compression regions, field-aligned particle beams and
flux-rope like events. We demonstrate that electrons propagate along the
magnetic field lines in the plasma sheet boundary layer (PSBL), while close to
the current sheet center the electron distribution is isotropic. The evidences
of the counterstreaming electron beams in the PSBLs are also presented. Most of
the field-aligned energetic ion beams are associated with the field-aligned
electron beams and about half of them have the bipolar fluctuation of the
meridional magnetic field component. Moreover they often show a normal velocity
dispersion for the different species which fits well in the scenario of
particle propagation from a single source. All features above are observed
during jovian reconfiguration events which are typically bonded with plasma
flow reversals. From all these characteristics, which are based on energetic
particle measurements, we believe that the reconfiguration processes in the
jovian magnetotail are associated with reconnection.
