PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-19:58:10
G05     48.5           19.0                6.0 +/-    0.63      13.5 +/-    0.63  0.070 / 0.140
G10     236.2          12.8               13.7 +/-    3.00      35.9 +/-    3.00  0.070 / 0.190
G13     75.2           36.2               10.2 +/-    0.67      15.8 +/-    0.67  0.050 / 0.090
G15     133.4          51.4               12.5 +/-    0.79      15.4 +/-    0.79  0.040 / 0.090
G16     313.4          12.9                6.7 +/-    1.74      17.5 +/-    1.74  0.280 / 0.410
G20     248.2          37.0               12.0 +/-    1.00      18.3 +/-    1.00  0.300 / 0.500
G21     313.4          47.0                8.4 +/-    1.09      11.0 +/-    1.09  0.060 / 0.120
G25     197.7          9.9                14.2 +/-   18.28      39.7 +/-   18.28  0.060 / 0.130
G26     286.9          20.4                8.3 +/-    1.75      18.0 +/-    1.75  0.140 / 0.340
G29     155.7          72.9               12.9 +/-    0.35      13.4 +/-    0.35  0.150 / 0.270