PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-00:57:40
G01     319.1          19.0                7.3 +/-    2.57      16.6 +/-    2.57  0.150 / 0.200
G08     261.8          13.8                8.2 +/-    1.17      21.0 +/-    1.17  0.170 / 0.270
G10     79.9           51.9                7.9 +/-    0.58       9.7 +/-    0.58  0.070 / 0.090
G11     304.6          21.7                7.5 +/-    1.38      15.8 +/-    1.38  0.110 / 0.090
G14     289.2          69.6                6.3 +/-    0.51       6.7 +/-    0.51  0.040 / 0.050
G18     305.2          40.6                7.0 +/-    2.35      10.1 +/-    2.35  0.040 / 0.050
G20     105.3          29.0                8.2 +/-    0.74      14.6 +/-    0.74  0.040 / 0.020
G31     174.5          42.4                8.4 +/-    1.06      11.8 +/-    1.06  0.030 / 0.020
G32     6.1            68.2                5.4 +/-    0.66       5.8 +/-    0.66  0.110 / 0.410