PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-11:58:10
G02     73.1           20.4                6.2 +/-    0.94      13.6 +/-    0.94  0.040 / 0.050
G05     46.0           48.5                5.5 +/-    0.90       7.0 +/-    0.90  0.030 / 0.050
G12     179.5          15.7                3.9 +/-    0.66       9.5 +/-    0.66  0.030 / 0.040
G13     112.8          24.9                8.6 +/-    1.96      16.8 +/-    1.96  0.030 / 0.030
G15     151.9          27.1                8.1 +/-    0.75      15.1 +/-    0.75  0.070 / 0.180
G20     226.5          14.0                3.3 +/-    2.22       8.3 +/-    2.22  0.080 / 0.180
G21     285.2          27.3                7.9 +/-    2.13      14.7 +/-    2.13  0.050 / 0.080
G25     218.7          39.3                8.3 +/-    1.37      12.1 +/-    1.37  0.070 / 0.080
G26     317.4          11.4                0.7 +/-   12.10       1.9 +/-   12.10  0.090 / 0.220
G29     339.3          69.1                5.3 +/-    1.10       5.6 +/-    1.10  0.100 / 0.160