PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-14:27:50
G01     292.1          40.5                5.2 +/-    0.76       7.5 +/-    0.76  0.060 / 0.120
G03     312.0          18.7               12.7 +/-    1.33      28.9 +/-    1.33  0.060 / 0.110
G10     118.7          28.6                5.4 +/-    1.10       9.8 +/-    1.10  0.050 / 0.060
G11     264.8          25.9                5.6 +/-    1.40      10.8 +/-    1.40  0.050 / 0.070
G14     24.0           58.9                4.5 +/-    0.39       5.2 +/-    0.39  0.060 / 0.090
G18     249.3          48.3                7.0 +/-    0.82       9.0 +/-    0.82  0.070 / 0.080
G22     314.3          40.2                4.2 +/-    2.03       6.1 +/-    2.03  0.070 / 0.120
G25     65.9           17.7                4.4 +/-    1.81      10.3 +/-    1.81  0.080 / 0.130
G31     148.4          77.2                6.2 +/-    1.07       6.4 +/-    1.07  0.050 / 0.090
G32     46.6           46.0                4.6 +/-    0.98       6.1 +/-    0.98  0.060 / 0.080