PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/25-16:58:00
G01     254.3          36.6                7.2 +/-    0.73      11.1 +/-    0.73  0.100 / 0.210
G03     316.3          44.9                7.2 +/-    0.87       9.8 +/-    0.87  0.150 / 0.280
G11     242.4          14.2                9.8 +/-    1.72      24.9 +/-    1.72  0.030 / 0.040
G14     56.1           43.8                6.6 +/-    1.16       9.1 +/-    1.16  0.030 / 0.040
G22     306.8          65.7                6.2 +/-    0.82       6.7 +/-    0.82  0.030 / 0.050
G23     285.4          19.2                9.0 +/-    1.12      20.1 +/-    1.12  0.030 / 0.040
G25     42.2           12.1                6.4 +/-    1.30      17.0 +/-    1.30  0.050 / 0.090
G26     137.8          36.1               12.0 +/-    0.83      18.6 +/-    0.83  0.040 / 0.100
G31     41.7           60.2                7.0 +/-    0.41       8.0 +/-    0.41  0.080 / 0.210
G32     75.6           23.8                7.9 +/-    0.44      15.9 +/-    0.44  0.090 / 0.240