20
N. G. Syzranova and V. A. Andrushchenko
Fig. 2.6 The dependence of
the flight altitude z on the
flight time t at the angle of
entry θ e = 10 ◦ at different
values of the aerodynamic
quality coefficient K of the
meteoroid
Fig. 2.7 The dependence of
the flight altitude z on the
flight time t at the angle of
entry θ e = 9 ◦ at different
values of the aerodynamic
quality coefficient K of the
meteoroid
Let’s consider the effect of its ballistic coefficient on the trajectory of a body.
Suppose that a stone body enters the atmosphere with the velocity V e = 30 km/s,
but with a significantly lower mass as the previous one: M ≈ 60 t, then the value of
the ballistic coefficient will be λ ≈ 10
4 kg/m
2 .
Data in Fig. 2.8 show how the angle of the trajectory of the body changes
depending on the flight time with two values of the ballistic coefficient at the angle
of entry into the atmosphere θ e = 9
◦ . It can be seen that for a body of lower mass
(λ ≈ 10
4 kg/m
2 ), the value of this angle is always positive and increases depending
on the flight time (curve 1), whereas for a larger body with a higher value of the