PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-08:57:50
G01     120.3          16.9                5.8 +/-    1.14      13.8 +/-    1.14  0.020 / 0.020
G07     78.5           66.6                7.3 +/-    0.32       7.9 +/-    0.32  0.030 / 0.030
G08     44.8           30.8                3.5 +/-    1.37       6.1 +/-    1.37  0.030 / 0.030
G09     173.6          22.8                7.1 +/-    1.32      14.7 +/-    1.32  0.030 / 0.030
G11     106.8          39.5                7.4 +/-    0.81      10.9 +/-    0.81  0.150 / 0.230
G13     318.2          18.7                1.9 +/-    1.92       4.3 +/-    1.92  0.140 / 0.210
G17     200.6          24.7                5.0 +/-    3.16       9.8 +/-    3.16  0.120 / 0.220
G18     94.1           20.2                5.0 +/-    2.28      10.8 +/-    2.28  0.100 / 0.210
G28     288.6          56.2                5.2 +/-    1.58       6.2 +/-    1.58  0.110 / 0.190
G30     341.0          66.3                5.4 +/-    1.16       5.8 +/-    1.16  0.100 / 0.200