PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-08:42:50
G01     123.7          12.8                4.6 +/-    2.31      12.1 +/-    2.31  0.120 / 0.290
G07     64.7           68.0                7.2 +/-    0.45       7.7 +/-    0.45  0.120 / 0.250
G08     50.4           40.4                3.5 +/-    1.20       5.0 +/-    1.20  0.030 / 0.030
G09     177.1          33.5                9.4 +/-    1.22      15.4 +/-    1.22  0.030 / 0.030
G11     117.4          37.5                8.3 +/-    0.86      12.7 +/-    0.86  0.090 / 0.230
G13     320.0          14.7                3.1 +/-    1.37       7.8 +/-    1.37  0.090 / 0.210
G17     200.4          14.7                1.8 +/-    1.96       4.6 +/-    1.96  0.070 / 0.070
G18     100.9          17.7                6.5 +/-    0.92      15.1 +/-    0.92  0.060 / 0.080
G28     271.9          48.5                6.5 +/-    2.21       8.3 +/-    2.21  0.100 / 0.130
G30     333.3          61.5                4.9 +/-    0.77       5.5 +/-    0.77  0.080 / 0.130