PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/01-17:43:10
G01     41.1           16.4                8.5 +/-    3.09      20.3 +/-    3.09  0.310 / 0.340
G06     173.5          40.5               12.1 +/-    0.88      17.4 +/-    0.88  0.280 / 0.360
G13     237.5          22.0               10.5 +/-    2.17      22.0 +/-    2.17  0.060 / 0.120
G15     272.8          12.0               10.9 +/-    4.07      29.0 +/-    4.07  0.080 / 0.130
G17     359.1          70.9               11.3 +/-    0.60      11.8 +/-    0.60  0.270 / 0.190
G19     272.5          67.0               10.5 +/-    0.73      11.3 +/-    0.73  0.220 / 0.280
G24     316.2          20.1                7.4 +/-    2.50      16.3 +/-    2.50  0.030 / 0.020
G28     71.6           46.9                9.7 +/-    0.95      12.8 +/-    0.95  0.020 / 0.030
G30     154.8          27.9               11.4 +/-    1.04      20.8 +/-    1.04  0.040 / 0.030