symbol

meaning

numerical value

C a t m

constant from inside

1.44766271 kg/m3

C o u t

constant from outside

1.75711175 × 10−5 kg/m3

s

atmospheric scale

7067.63477 m

t

thickness atmosphere

8 × 104 m

a

radius Earth

6.3781 × 106 m

l z e n i t h

line of sight for zenith

8 × 104 m

l h o r i z o n

line of sight for horizon

1.0133 × 106 m

ρ z e n i t h ¯

averaged density along zenith

0.127892 kg/m3

ρ h o r i z o n ¯

averaged density along horizon

0.380299 kg/m3