  In this paper we present the high resolution spectral observations of the
fragment of lunar surface during the total lunar eclipse of December 10, 2011.
The observations were carried out with the fiber-fed echelle spectrograph at
1.2-m telescope in Kourovka Astronomical observatory (Ural mountains, central
Russia). The observed radiation is transferred by tangent trajectory through
the southern polar stratosphere before the reflection from the Moon and spectra
contain a number of absorption bands of atmospheric gases (O2, O3, O4, NO2,
H2O). High resolution analysis of three O2 bands and O4 absorption effects is
used to trace the effective trajectory of solar emission through the
stratosphere and to detect the contribution of scattered light. Bands of other
gases allow us to measure their abundances along the trajectory.
