| Physical properties | Earth | Mars |
| Density, ρ [kg/m3] | 1.225 | 0.017 |
| Temperature, T [K] | 288.2 | 223.2 |
| Gas constant, R [J/kg·K] | 287.1 | 188.9 |
| Specific heat ratio, γ | 1.400 | 1.289 |
| Dynamic viscosity, μ [Pa∙s] | 1.750 × 10−5 | 1.130 × 10−5 |
| Static pressure, p [kPa] | 101.3 | 0.720 |
| Sound speed, a [m/s] | 340.4 | 233.1 |