PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-07:13:10
G07     327.3          56.0                3.0 +/-    1.13       3.6 +/-    1.13  0.100 / 0.110
G08     103.5          50.0                7.5 +/-    0.56       9.4 +/-    0.56  0.080 / 0.130
G09     180.2          74.0                6.2 +/-    0.69       6.5 +/-    0.69  0.040 / 0.070
G11     147.6          10.9               -0.2 +/-   17.24      -0.4 +/-   17.24  0.050 / 0.090
G23     154.3          47.9                6.9 +/-    0.96       8.9 +/-    0.96  0.030 / 0.060
G27     61.0           34.7                3.2 +/-    0.62       5.0 +/-    0.62  0.030 / 0.050
G28     233.4          24.8                5.4 +/-    1.51      10.6 +/-    1.51  0.150 / 0.300
G30     297.4          30.6                4.5 +/-    1.32       7.7 +/-    1.32  0.070 / 0.250