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                7.5 +/-    0.92      18.0 +/-    0.92  0.170 / 0.400
G06     173.5          40.5               13.0 +/-    1.25      18.7 +/-    1.25  0.150 / 0.350
G13     237.5          22.0               10.1 +/-    3.14      21.3 +/-    3.14  0.070 / 0.120
G15     272.8          12.0               11.0 +/-    1.43      29.4 +/-    1.43  0.060 / 0.130
G17     359.1          70.9               10.5 +/-    0.65      11.0 +/-    0.65  0.140 / 0.190
G19     272.5          67.0                9.4 +/-    0.83      10.1 +/-    0.83  0.170 / 0.240
G24     316.2          20.1                9.3 +/-    2.10      20.5 +/-    2.10  0.060 / 0.080
G28     71.6           46.9                8.9 +/-    0.46      11.7 +/-    0.46  0.050 / 0.080
G30     154.8          27.9               11.4 +/-    1.30      20.9 +/-    1.30  0.100 / 0.350