Observation of isolated structures of the low latitude boundary layer withthe INTERBALL/Tail Probe

We analyze the structure of magnetospheric transients observed at the dusk- side low-latitude magnetopause with the Interball Tail Probe. Ion and magne tic field measurements are used to investigate one particular transient in more detail. This transient has distinct non-symmetric structure with the p lasma characteristics and the flow properties of the leading part of the tr ansient being quite different from those in the trailing part of the transi ent. The region separating these two parts corresponds to the change of the sign in the B-n component. These observations support an earlier conclusio n that some plasma irregularities within the Low Latitude Boundary Layer (L LBL), formed as a result of sporadic reconnection, disconnect from the magn etopause, propagate and dissipate in the magnetosphere, and form what we ca ll Disconnected Magnetosheath Transfer Events (DMTEs).