VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University90310.18287/2541-7533-2010-0-2(22)-105-111UnknownAnalysis of possibility of residual propellant utilization in Soyuz orbital stage for controllable descent11sadohina@ssau.ru11sadohina@ssau.ru11sadohina@ssau.ru11sadohina@ssau.ruSamara State Aerospace UniversityState research and production space rocket center “TsSKB-Progress”, SamaraOmsk State Technical University180620109210511118062014Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p class="a0" align="left">Apparent motion of Soyuz orbital stage and spacecraft is investigated in statistical dynamic description. It is shown that exclusion of the breaking jet-nozzle on Soyuz orbital stage doesn<sup>, </sup>t impair the safery of the expended payload and offer the challenge for utilization of orbital stage as carrier of picosatellites and use residual propellant in orbital stage for controllable descent.</p>Orbital stageseparation subsystempayloadpressurizing gas jet nozzleresidual propellantРакета-носительсистема отделенияполезный грузреактивное сопло