Altitude km

0

20

50

80

90

100

110

120

Pressure ATM

1.000e-0

5.529e-2

7.874e-4

1.039e-5

1.812e-6

3.159e-7

7.011e-8

2.505e-8

Density wrt surface

1.000e-0

7.258e-2

8.383e-4

1.507e-5

2.789e-6

4.575e-7

7.925e-8

1.814e-8

Pressure Pa

1.013e+5

5.457e+3

7.978e+1

1.052e+0

1.836e-1

3.201e-2

7.104e-3

2.538e-3

Density kg/m³

1.225e-0

8.891e-2

1.027e-3

1.846e-5

3.416e-6

5.604e-7

9.708e-8

2.222e-8

Temperature K

288.15

216.65

270.65

198.639

186.87

195.08

240

360

Gravity m/s2

9.8066

9.7452

9.6542

9.5644

9.5348

9.5052

9.4759

9.4466

Pressure scale ht m

8434.5

6381.6

8047.4

5961.7

5636

6009

7723

12091

Molecular weight

28.964

28.964

28.964

28.964

28.73

28.40

27.27

26.20

Mean free path m

6.633e-8

9.139e-7

7.913e-5

4.402e-3

2.37e-2

0.142

0.788

3.31

Speed of sound m/s

340.29

295.07

329.80

282.54

275*

283*

320*

400*

Therm Cond J/m-s-K

2.536e-5

1.953e-5

2.397e-5

1.800e-5

Ozone kg/m³

5.4e-8

3.80e-7

5.29e-9

Water Vapor ppm

4686

4.5

7.6

0.6

worst case thunderstorm, falls off above 30km