Altitude [km]  H2O [ppmv] H2O_er [ppmv]  S     S_er
 81.13    2.0010e+01   1.0060e+01   1.3700e+01   2.0200e+01
 78.57    2.3520e+01   7.1010e+00   3.3750e+01   4.7320e+01
 76.01    2.1560e+01   4.9450e+00   1.1630e+02   1.6040e+02
 73.43    1.4000e+01   3.4420e+00   1.4230e+02   1.8480e+02
 70.86    8.5220e+00   2.4480e+00   4.8100e+01   5.7050e+01
 68.28    7.3650e+00   1.7970e+00   1.1590e+01   1.1630e+01
 65.67    1.1980e+01   1.3720e+00   3.4190e+00   2.7450e+00
 63.08    1.7160e+01   1.0850e+00   1.5990e+00   1.1050e+00
 60.49    2.2890e+01   8.8050e-01   1.1590e+00   6.9560e-01
 57.87    2.9310e+01   7.4690e-01   8.5830e-01   4.4400e-01
 55.27    3.6230e+01   6.8030e-01   4.9060e-01   2.1890e-01
 52.65    4.3130e+01   6.5320e-01   1.6700e-01   6.1980e-02
 50.01    5.5440e+01   6.4880e-01   9.5100e-02   3.0080e-02
 47.38    7.1960e+01   6.9090e-01   6.1220e-02   1.6820e-02
 44.72    8.3300e+01   7.6620e-01   1.9760e-02   4.5900e-03
 42.07    8.6740e+01   8.1860e-01   5.2270e-03   1.0540e-03
 39.41    8.7080e+01   8.2970e-01   2.0790e-03   3.8470e-04
 36.73    8.7170e+01   8.2000e-01   1.5320e-03   2.7630e-04
 34.05    9.0000e+01   8.2910e-01   1.3520e-03   2.3980e-04
 31.37    8.7730e+01   8.5650e-01   8.0480e-04   1.3730e-04
 28.66    8.7710e+01   8.8720e-01   6.1510e-04   1.0230e-04
 25.93    7.9470e+01   8.7680e-01   9.6670e-04   1.6410e-04
 23.20    6.9470e+01   8.0350e-01   3.2560e-03   5.7390e-04
 20.45    5.6890e+01   6.9750e-01   1.5110e-02   2.7020e-03
 17.70    4.5290e+01   6.5270e-01   5.8570e-02   1.0380e-02
 14.93    3.6050e+01   7.3420e-01   3.1580e-01   6.0180e-02