PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-16:43:00
G01     320.7          12.1                3.6 +/-    3.92       9.6 +/-    3.92  0.210 / 0.490
G08     265.1          16.3                7.9 +/-    1.35      19.1 +/-    1.35  0.120 / 0.460
G10     67.7           57.2                5.8 +/-    0.53       6.8 +/-    0.53  0.140 / 0.310
G11     310.1          18.1                5.3 +/-    0.83      12.2 +/-    0.83  0.120 / 0.260
G14     275.3          67.6                5.6 +/-    0.63       6.1 +/-    0.63  0.050 / 0.080
G18     96.8           31.6                7.8 +/-    0.79      13.3 +/-    0.79  0.050 / 0.060
G27     228.0          12.9                9.9 +/-    3.62      25.9 +/-    3.62  0.020 / 0.030
G31     177.8          34.3                9.5 +/-    1.80      15.3 +/-    1.80  0.040 / 0.030
G32     351.5          71.9                6.2 +/-    0.52       6.4 +/-    0.52  0.040 / 0.040