Package TANSAT for the Analysis of Spacecraft Thermal Modes

The software package for computerized modeling of thermal regimes of a spacecraft (S/C) provided with passive and active means of temperature control, under conditions of orbital flight mission and at thermo-vacuum testing conditions, is represented. The programs of the package have been developed in Object Pascal programming language. Description of the package programs and their basic functions is outlined. An example of calculations for thermal regimes of satellite, with its longitudinal axis oriented on the Sun, is represented.