PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-10:58:00
G01     93.9           30.9                6.3 +/-    0.87      10.8 +/-    0.87  0.030 / 0.030
G07     122.7          47.6                7.8 +/-    1.16      10.1 +/-    1.16  0.030 / 0.030
G11     71.0           40.3                6.8 +/-    1.46       9.8 +/-    1.46  0.070 / 0.110
G13     297.8          35.2                5.7 +/-    2.94       9.0 +/-    2.94  0.080 / 0.090
G17     211.8          51.9                8.3 +/-    0.48      10.2 +/-    0.48  0.110 / 0.110
G18     65.8           23.8                5.4 +/-    0.73      10.8 +/-    0.73  0.130 / 0.130
G19     213.7          20.0                6.1 +/-    4.13      13.4 +/-    4.13  0.050 / 0.040
G28     341.0          61.8                5.8 +/-    0.67       6.4 +/-    0.67  0.040 / 0.040
G30     86.1           79.4                6.6 +/-    0.63       6.7 +/-    0.63  0.060 / 0.130