PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-08:28:10
G02     205.3          43.9                5.3 +/-    0.67       7.2 +/-    0.67  0.080 / 0.110
G06     137.8          76.2                6.5 +/-    0.47       6.6 +/-    0.47  0.070 / 0.120
G12     311.8          24.3                4.0 +/-    0.88       8.0 +/-    0.88  0.110 / 0.150
G17     42.6           43.5                4.4 +/-    1.04       6.0 +/-    1.04  0.110 / 0.140
G19     19.1           59.2                5.1 +/-    0.86       5.8 +/-    0.86  0.040 / 0.050
G24     290.1          39.9                3.7 +/-    2.87       5.3 +/-    2.87  0.040 / 0.050
G28     105.5          33.6                7.1 +/-    1.12      11.5 +/-    1.12  0.040 / 0.030