PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-18:27:50
G01     310.2          31.1                9.9 +/-    2.13      17.0 +/-    2.13  0.090 / 0.100
G10     102.2          41.8               11.6 +/-    1.05      16.4 +/-    1.05  0.110 / 0.140
G11     284.3          28.3                7.9 +/-    0.98      14.3 +/-    0.98  0.060 / 0.050
G14     350.3          68.4                8.3 +/-    1.04       8.8 +/-    1.04  0.060 / 0.050
G18     278.3          51.2                8.9 +/-    1.47      11.1 +/-    1.47  0.030 / 0.040
G20     118.2          16.6               12.6 +/-    1.92      30.1 +/-    1.92  0.030 / 0.050
G22     308.5          22.8                8.8 +/-    1.85      18.2 +/-    1.85  0.070 / 0.130
G25     80.4           14.4                9.9 +/-    2.12      24.9 +/-    2.12  0.080 / 0.120
G31     175.7          57.2               12.8 +/-    0.97      14.9 +/-    0.97  0.180 / 0.220
G32     30.5           56.1                7.8 +/-    1.60       9.2 +/-    1.60  0.190 / 0.220