PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-12:28:10
G01     86.3           32.4                4.7 +/-    1.33       7.9 +/-    1.33  0.070 / 0.100
G07     128.4          40.2                7.6 +/-    1.15      11.0 +/-    1.15  0.110 / 0.110
G11     64.0           36.3                7.2 +/-    1.97      11.1 +/-    1.97  0.020 / 0.020
G13     293.3          35.5                9.2 +/-    2.91      14.5 +/-    2.91  0.020 / 0.020
G17     216.8          59.4                8.2 +/-    0.92       9.3 +/-    0.92  0.030 / 0.060
G19     216.0          31.8                7.8 +/-    2.04      13.1 +/-    2.04  0.050 / 0.050
G28     355.9          61.3                6.2 +/-    0.64       7.0 +/-    0.64  0.050 / 0.040
G30     109.5          75.3                7.4 +/-    0.82       7.7 +/-    0.82  0.050 / 0.040