PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-23:58:00
G01     308.0          33.9                8.6 +/-    1.76      14.0 +/-    1.76  0.070 / 0.170
G10     104.2          39.5                8.7 +/-    0.69      12.8 +/-    0.69  0.060 / 0.150
G11     285.8          26.6                9.3 +/-    1.25      17.5 +/-    1.25  0.080 / 0.170
G14     344.3          68.7                8.1 +/-    0.55       8.6 +/-    0.55  0.080 / 0.190
G18     279.8          50.0                8.2 +/-    0.94      10.4 +/-    0.94  0.040 / 0.050
G20     119.7          14.3                9.1 +/-    0.87      23.0 +/-    0.87  0.040 / 0.050
G22     309.1          22.6                6.2 +/-    1.05      12.9 +/-    1.05  0.070 / 0.180
G25     85.3           15.6                6.7 +/-    0.98      16.3 +/-    0.98  0.060 / 0.190
G31     165.2          63.5               10.6 +/-    1.32      11.7 +/-    1.32  0.040 / 0.070
G32     34.4           53.6                7.2 +/-    0.58       8.7 +/-    0.58  0.040 / 0.070