  The paper contains the results of wide-angle polarization camera (WAPC)
measurements of the twilight sky background conducted in summer 2011 and 2012
at 55.2 degs.N, 37.5 degs.E, southwards from Moscow. The method of single
scattering separation based on polarization data is suggested. The obtained
components of scattering matrixes show the domination of Rayleigh scattering in
the mesosphere for all observation days. It made possible to retrieve the
altitude distribution of temperature in the mesosphere. The results are
compared with the temperature data by TIMED/SABER and EOS Aura/MLS instruments
for nearby dates and locations.
