PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-17:43:10
G02     28.5           59.5               17.0 +/-    1.10      19.4 +/-    1.10  0.230 / 0.290
G05     153.5          56.5               20.8 +/-    0.41      24.4 +/-    0.41  0.220 / 0.350
G06     51.8           19.5               15.8 +/-    2.10      35.3 +/-    2.10  0.060 / 0.050
G12     206.2          71.7               16.1 +/-    0.73      16.8 +/-    0.73  0.050 / 0.050
G19     98.1           10.4               17.3 +/-    1.25      47.8 +/-    1.25  0.030 / 0.030
G20     197.8          23.1               19.8 +/-    2.84      40.4 +/-    2.84  0.020 / 0.030
G25     299.1          53.9               16.3 +/-    1.61      19.6 +/-    1.61  0.030 / 0.040
G29     306.5          28.4               15.0 +/-    0.60      27.2 +/-    0.60  0.030 / 0.040