DynamicViscosity[altitude] gives the coefficient of dynamic viscosity at the specified altitude altitude.
GravityAcceleration[altitude] gives the 45-degree-latitude acceleration of gravity at the specified altitude altitude.
KinematicViscosity[altitude] gives the kinematic viscosity at the specified altitude altitude.
MeanDensity[altitude] gives the mean density of air at the specified altitude altitude.
MeanFreePath[altitude] gives the mean free path at the specified altitude altitude.
MeanMolecularWeight[altitude] gives the mean molecular weight at the specified altitude altitude.
MeanParticleSpeed[altitude] gives the mean particle speed at the specified altitude altitude.
NumberDensity[altitude] gives the total number density of the mixture of neutral atmospheric gas particles at the specified altitude altitude.
Pressure
(Standard Atmosphere Package Symbol) Pressure[altitude] gives the total atmospheric pressure at the specified altitude altitude.
PressureScaleHeight[altitude] gives the local pressure scale height of the mixture of gases comprising the atmosphere at the specified altitude altitude.