PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-16:42:20
G02     14.3           67.2                7.4 +/-    0.51       8.0 +/-    0.51  0.030 / 0.040
G05     156.4          50.8               10.7 +/-    0.54      13.4 +/-    0.54  0.030 / 0.030
G06     48.7           23.0                5.0 +/-    1.61      10.2 +/-    1.61  0.020 / 0.020
G12     209.3          76.8                7.8 +/-    0.43       8.0 +/-    0.43  0.030 / 0.020
G19     89.5           20.0                7.5 +/-    1.56      16.5 +/-    1.56  0.050 / 0.050
G25     307.8          47.5                7.7 +/-    1.58      10.1 +/-    1.58  0.050 / 0.070
G29     299.4          19.7                6.0 +/-    1.09      13.2 +/-    1.09  0.040 / 0.030