Thermodynamic Properties of High-Temperature Jupiter-Atmosphere Components

A study on the thermodynamic properties of Jupiter-atmosphere chemical species important for the high-speed aerodynamics analysis of entry problems is reported. The included species are H-2, H-2(+), H-3(+), H+, H-,He, He+, He++, e(-). Complete tables of thermodynamic properties of these species in the temperature range 50-50000 K have been obtained by using accurate sets of energy levels for both atomic and molecular species. The calculation method is described and relevant results are shown and discussed by comparison with previous data from other sources.