The ISEE 2 plasma experiment data are used to investigate the properties of the O+ ions streams flowing in the earth's magnetotail low latitude boundary layer and nothern plasma lobe. The E¿B filter is seen to be the organizer of the flow of these ions, after their acceleration in the topside ionosphere. Between XSE=-15 RE and -23 RE the velocity of the O+ ions is a function of the distance from the center magnetotail axis, the slower flowing closer to this and the faster closer to the magnetopause. The O+ stream density is observed to vary with this distance as well. The temperature of the steaming ions is shown to be anisotropic with respect to the ambient magnetic field; a generally unresolved narrow conic pitch angle distribution of the O+ ions is suggested to be the cause of this anisotropy. The properties of the O+ ions are shown to be consistent with an acceleration mechanism, or a combination of mechanisms, that act orthogonally and parallel to the magnetic field.