PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-16:12:40
G02     342.0          76.9                7.7 +/-    0.57       7.9 +/-    0.57  0.030 / 0.040
G05     164.5          37.0               12.4 +/-    1.39      19.0 +/-    1.39  0.030 / 0.040
G06     43.3           34.4                6.1 +/-    0.80       9.9 +/-    0.80  0.040 / 0.080
G12     291.5          79.5                6.5 +/-    0.85       6.6 +/-    0.85  0.050 / 0.080
G19     77.2           28.0                7.0 +/-    0.88      12.8 +/-    0.88  0.020 / 0.040
G24     222.2          18.4               10.9 +/-    1.84      25.1 +/-    1.84  0.020 / 0.030
G25     315.6          35.5                7.1 +/-    1.56      11.1 +/-    1.56  0.070 / 0.110
G29     289.5          11.1               -0.1 +/-   20.85      -0.2 +/-   20.85  0.060 / 0.130