PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-13:58:10
G01     250.1          35.6                7.4 +/-    2.23      11.7 +/-    2.23  0.060 / 0.080
G03     316.0          48.2                3.7 +/-    0.39       4.7 +/-    0.39  0.090 / 0.090
G11     236.0          11.3                5.4 +/-    2.11      14.6 +/-    2.11  0.050 / 0.070
G14     60.9           40.0                5.1 +/-    1.72       7.5 +/-    1.72  0.050 / 0.080
G18     217.8          26.3                6.3 +/-    2.15      11.9 +/-    2.15  0.060 / 0.110
G22     300.6          70.8                4.5 +/-    0.47       4.7 +/-    0.47  0.070 / 0.090
G23     286.6          19.1                0.1 +/-    4.66       0.2 +/-    4.66  0.050 / 0.080
G26     140.5          36.9                6.8 +/-    1.32      10.5 +/-    1.32  0.040 / 0.090
G31     41.2           60.0                4.0 +/-    0.64       4.5 +/-    0.64  0.030 / 0.030
G32     74.9           26.9                4.1 +/-    1.61       7.7 +/-    1.61  0.040 / 0.040