PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-20:43:10
G01     313.7          26.9               14.6 +/-    0.96      27.4 +/-    0.96  0.120 / 0.160
G10     95.3           47.0               14.1 +/-    0.81      18.5 +/-    0.81  0.090 / 0.160
G11     292.3          27.1               13.2 +/-    1.55      24.6 +/-    1.55  0.050 / 0.040
G14     334.4          70.2               13.3 +/-    0.52      14.0 +/-    0.52  0.050 / 0.040
G18     111.4          19.7               15.9 +/-    1.76      35.3 +/-    1.76  0.110 / 0.240
G22     305.8          18.1               13.9 +/-    1.38      32.0 +/-    1.38  0.160 / 0.270
G25     90.5           13.4               15.8 +/-    2.39      40.9 +/-    2.39  0.040 / 0.040
G31     175.4          52.9               16.8 +/-    0.83      20.5 +/-    0.83  0.040 / 0.030
G32     23.5           60.0               13.4 +/-    0.91      15.2 +/-    0.91  0.090 / 0.190