Evolutions in rotary movement dynamically asymmetric spacecrafts in atmosphere

Is considered non resonance movement dynamically asymmetric spacecrafts in atmosphere. The small asymmetry of this vehicles includes mass, aerodynamic and inertial. At concurrence of two frequencies in a system of equations of movement spacecraft realization of a long-duration resonance can take place, which results in practice in a increase of a corner of attack up to inadmissiblly large sizes. Main attention in work give on study non resonance evolutions of rotary movement of a vehicle, called by influence of resonance. These phenomena are known as secondary resonant effects. Their research is made on averaging in non resonance case to equations of movement spacecraft. The analytical research of rotary movement dynamically asymmetric of a vehicle is accompanied by numerical accounts, the results of which are resulted.