PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-20:43:10
G05     48.8           16.9                7.3 +/-    0.68      17.3 +/-    0.68  0.070 / 0.080
G10     236.5          14.6               14.3 +/-    2.01      35.8 +/-    2.01  0.110 / 0.090
G13     73.6           35.2                9.6 +/-    0.86      15.2 +/-    0.86  0.130 / 0.500
G15     123.7          53.0               11.6 +/-    0.77      14.1 +/-    0.77  0.110 / 0.350
G16     313.4          12.8                9.5 +/-    2.41      24.8 +/-    2.41  0.060 / 0.150
G20     249.3          37.9               14.4 +/-    1.12      21.7 +/-    1.12  0.090 / 0.180
G21     313.8          46.7               10.6 +/-    0.97      14.0 +/-    0.97  0.060 / 0.110
G25     199.6          11.2               12.8 +/-    1.63      34.8 +/-    1.63  0.050 / 0.120
G26     286.8          20.1               11.3 +/-    1.49      24.8 +/-    1.49  0.190 / 0.350
G29     153.5          71.7               10.3 +/-    0.35      10.8 +/-    0.35  0.290 / 0.440