  This paper describes application of mathematical model that establishes
relationship between parameters of celestial bodies motion in the spheres of
activity of the Sun and the Earth with mass-energy characteristics of these
objects and their explosion modes during destruction in the Earth atmosphere,
that in turn are linked with phenomena observed on underlying surface. This
model was used to calculate the characteristics of objects that caused the
Chelyabinsk and Tunguska explosions with using of its trajectory parameters
described in recent scientific publications (late 2013 - early 2014). It turned
out that the size of Chelyabinsk meteoroid was equal to 180 - 185 meters, and
its mass was close to 1.8 megatons. Energy of its explosion was equal to 57
megatons of TNT, size of Tunguska meteoroid was equal to 105 m, mass - 0.35
megatons, while energy of explosion was about of 14.5 megatons of TNT. Due to
the common origin of these two celestial bodies their average density was equal
- about of 570 kg/m^3.
