PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/20-02:27:50
G01     305.5          35.5                7.5 +/-    1.09      11.8 +/-    1.09  0.060 / 0.100
G10     107.3          37.5                7.2 +/-    0.47      11.0 +/-    0.47  0.070 / 0.080
G11     281.5          27.1                7.7 +/-    1.31      14.4 +/-    1.31  0.040 / 0.040
G14     355.1          67.2                6.7 +/-    0.72       7.2 +/-    0.72  0.040 / 0.050
G18     274.5          50.4                3.9 +/-    2.86       4.8 +/-    2.86  0.040 / 0.060
G20     121.4          12.9                6.4 +/-    2.02      16.7 +/-    2.02  0.040 / 0.060
G22     310.2          25.6                5.2 +/-    2.28      10.1 +/-    2.28  0.050 / 0.030
G25     82.4           16.5                5.5 +/-    1.78      13.1 +/-    1.78  0.030 / 0.030
G31     161.4          67.0                7.5 +/-    0.28       8.1 +/-    0.28  0.090 / 0.190
G32     36.8           52.1                5.9 +/-    1.19       7.3 +/-    1.19  0.070 / 0.160