In the geomagnetic tail, enhanced electron fluxes are observed mainly in th
e plasma sheet and in the plasma sheet boundary layer. We use the data of t
he Interball-tail probe to study the regions of electron fluxes across the
near-Earth magnetotail, up to the distances of 30 R-E. The Interball orbit
allows us to scan the tail in both Y-GSM and Z(GSM) coordinates, from low t
o high latitudes. The spatial distribution of enhanced electron fluxes has
been statistically estimated using the data collected during more than 2 ye
ars of satellite operation. We have found two basic regions of occurrence:
(1) As expected, with a nearly 100% occurrence rate, the electron fluxes ha
ve been found in the plasma sheet region, up to 3-4 R-E above the neutral s
heet in the central part and up to 7-8 R-E above the neutral sheet near the
low-latitude boundary layer; (2) with about 10% occurrence rate, we observ
e enhanced electron fluxes near the high-latitude magnetopause. In each of
these regions, we present a case study based on two point measurements onbo
ard both main satellite and subsatellite. We characterize ion and electron
plasma components and motion of observed boundaries. Low-latitude case can
be interpreted as irregular flapping of the plasma sheet and its boundary l
ayer. Near the high-latitude magnetopause, the case study shows isolated pl
asma structures having the size comparable to the Earth's radius and moving
with a velocity from several km/s up to several tens of km/s. These struct
ures contain electrons with energies of several hundreds of eV, and their n
ature remains unclear.