PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-15:58:10
G01     41.8           17.3                6.3 +/-    0.66      14.9 +/-    0.66  0.060 / 0.110
G06     173.4          39.5               12.2 +/-    1.14      18.0 +/-    1.14  0.050 / 0.120
G13     238.5          22.8                9.5 +/-    1.39      19.5 +/-    1.39  0.110 / 0.150
G15     274.8          12.2               10.5 +/-    1.05      27.9 +/-    1.05  0.110 / 0.170
G17     360.0          71.2                9.3 +/-    0.62       9.8 +/-    0.62  0.060 / 0.080
G19     268.3          65.8                8.3 +/-    0.59       9.0 +/-    0.59  0.050 / 0.080
G24     316.5          19.5                8.5 +/-    1.48      18.9 +/-    1.48  0.180 / 0.250
G28     69.8           47.5                8.3 +/-    0.46      10.8 +/-    0.46  0.220 / 0.310
G30     154.6          29.8               10.9 +/-    1.12      19.1 +/-    1.12  0.090 / 0.350