PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/25-17:57:40
G01     318.7          19.3                7.6 +/-    1.47      17.0 +/-    1.47  0.150 / 0.260
G08     254.1          12.5                9.6 +/-    2.88      25.2 +/-    2.88  0.150 / 0.340
G10     82.4           51.7                8.5 +/-    1.44      10.5 +/-    1.44  0.080 / 0.230
G11     300.6          24.5                8.7 +/-    1.48      17.3 +/-    1.48  0.100 / 0.210
G14     303.4          71.4                8.2 +/-    0.43       8.6 +/-    0.43  0.040 / 0.040
G18     300.7          44.4                8.3 +/-    1.07      11.3 +/-    1.07  0.040 / 0.050
G20     106.7          27.9                7.4 +/-    1.29      13.5 +/-    1.29  0.030 / 0.040
G22     301.6          11.3                4.9 +/-   11.53      13.3 +/-   11.53  0.030 / 0.040
G31     179.4          39.8                9.9 +/-    1.60      14.5 +/-    1.60  0.140 / 0.450
G32     7.4            67.3                8.5 +/-    0.82       9.1 +/-    0.82  0.160 / 0.410