Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991baicz..42..307p&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 42, no. 5, Oct. 1991, p. 307-316.
Astronomy and Astrophysics
Astronomy
2
Meteor Trails, Orbit Calculation, Orbital Velocity, Solar Orbits, Ablation, Aerodynamic Drag, Atmospheric Entry, Bolides, Equations Of Motion, Gravitational Effects, Numerical Integration
Scientific paper
The derivation of the formulas yielding the meteoroid velocity vector is described. The equation of motion is proposed which takes into account simultaneously both the drag and the gravitational force from the observed heights to the standard reference level of 150 km. It is demonstrated how the final results can be affected by the use of a particular method of fitting the data. All findings are visualized by the results of processing selected fireball data observed in the European network. It is found that the differences between classical results and the method under consideration are not enormous, but are outside the standard deviation boxes. The procedure based on numerical integration of the equation of motion is recommended as the method for obtaining a valid velocity vector.
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