Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Space vehicles heat models precision estimation on the results of vacuum heat tests A.G. VIKULOV Problems of precision estimation and validation of space vehicles mathematical heat models are considered. Precision estimation methodology is proposed for based on such models steady and unsteady simulations. Hypothesis of heat model precision in unsteady process of the first power of time derivative is checked theoretically in particular case. Ability to identify mathematical model coefficients on unsteady heat process time derivative is shown. Keywords: Simulation methods, space vehicles, inverse problems, temperature, heat conductance. Contacts: E-mail: viarticle@yandex.ru Pp. 46-50.