PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-11:43:10
G01     68.2           32.6                5.3 +/-    1.24       8.8 +/-    1.24  0.060 / 0.110
G07     138.6          28.4                6.5 +/-    1.17      11.8 +/-    1.17  0.060 / 0.120
G11     51.5           28.3                3.3 +/-    0.97       6.0 +/-    0.97  0.030 / 0.040
G13     271.2          37.4                6.8 +/-    0.87      10.3 +/-    0.87  0.040 / 0.040
G15     305.5          12.9                3.1 +/-    1.89       8.0 +/-    1.89  0.060 / 0.070
G17     238.9          72.5                6.8 +/-    0.67       7.0 +/-    0.67  0.050 / 0.090
G18     46.4           16.3                2.9 +/-    1.19       7.0 +/-    1.19  0.100 / 0.260
G19     225.5          39.4                7.6 +/-    1.67      11.2 +/-    1.67  0.120 / 0.330
G28     21.9           59.1                5.7 +/-    0.27       6.5 +/-    0.27  0.070 / 0.110
G30     138.0          61.3                8.5 +/-    0.45       9.5 +/-    0.45  0.070 / 0.120