PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/05-07:57:40
G01     127.2          11.4              -13.4 +/-   31.06     -36.1 +/-   31.06  0.040 / 0.030
G07     54.8           69.2                5.3 +/-    0.48       5.7 +/-    0.48  0.040 / 0.040
G08     49.4           37.7                3.3 +/-    0.33       5.0 +/-    0.33  0.030 / 0.040
G09     173.8          30.8                7.5 +/-    0.73      13.0 +/-    0.73  0.030 / 0.030
G11     116.8          35.5                5.9 +/-    0.89       9.2 +/-    0.89  0.120 / 0.440
G13     321.0          11.8                0.5 +/-   12.35       1.4 +/-   12.35  0.110 / 0.380
G17     199.1          16.4                4.7 +/-    0.83      11.2 +/-    0.83  0.100 / 0.250
G18     102.2          16.5                4.8 +/-    1.70      11.4 +/-    1.70  0.100 / 0.290
G28     274.6          51.9                6.7 +/-    0.87       8.2 +/-    0.87  0.100 / 0.120
G30     330.4          59.0                3.7 +/-    1.02       4.3 +/-    1.02  0.090 / 0.130