PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/08-13:57:40
G02     216.9          57.8                6.6 +/-    0.93       7.7 +/-    0.93  0.060 / 0.090
G06     56.4           73.3                6.1 +/-    1.16       6.3 +/-    1.16  0.080 / 0.100
G12     318.2          36.5                4.3 +/-    1.23       6.6 +/-    1.23  0.080 / 0.160
G17     55.5           34.2                4.8 +/-    0.58       7.7 +/-    0.58  0.110 / 0.190
G19     41.0           47.5                5.9 +/-    0.56       7.7 +/-    0.56  0.050 / 0.080
G24     266.5          41.0                6.4 +/-    1.47       9.2 +/-    1.47  0.040 / 0.090
G28     120.7          19.8                7.9 +/-    0.99      17.5 +/-    0.99  0.040 / 0.050