ИСТИНА

Analysis of spectra of bolides obtained during the Leonid 2000 meteor shower is performed. In these spectra sequences +2, +3, and +4 of N2 first positive system were analyzed. Original techniques for estimation of vibrational and rotational temperatures of N2 molecules were developed. Upper limit of the electronic temperature of N2 molecules is given based on upper limit of the intensities of transitions of N2 second positive system. Temporal behavior of rotational and vibrational temperatures as well as number of N2 molecules in the impact-produced clouds for selected bolides is analyzed.