PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-13:27:50
G01     48.9           24.6                3.8 +/-    2.33       7.6 +/-    2.33  0.050 / 0.060
G06     175.6          28.4                6.5 +/-    2.12      11.8 +/-    2.12  0.040 / 0.060
G07     146.7          11.0                6.4 +/-    3.23      17.4 +/-    3.23  0.140 / 0.260
G11     44.0           12.6                3.9 +/-    2.14      10.3 +/-    2.14  0.150 / 0.320
G13     248.6          29.7                3.8 +/-    1.47       6.7 +/-    1.47  0.130 / 0.110
G15     286.1          14.4                1.8 +/-    1.24       4.4 +/-    1.24  0.070 / 0.080
G17     331.8          78.0                3.8 +/-    0.43       3.9 +/-    0.43  0.130 / 0.180
G19     246.4          57.3                3.3 +/-    0.93       3.8 +/-    0.93  0.080 / 0.160
G28     54.2           52.5                4.8 +/-    0.72       5.8 +/-    0.72  0.070 / 0.130
G30     151.0          41.8                5.0 +/-    0.61       7.1 +/-    0.61  0.090 / 0.110