PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-15:12:50
G01     311.0          30.5                6.2 +/-    0.98      10.8 +/-    0.98  0.070 / 0.130
G10     101.0          42.4                7.4 +/-    0.57      10.3 +/-    0.57  0.060 / 0.150
G11     285.7          28.1                2.9 +/-    1.09       5.2 +/-    1.09  0.040 / 0.050
G14     348.0          68.9                5.9 +/-    1.12       6.2 +/-    1.12  0.040 / 0.040
G18     279.8          51.2                0.0 +/-    0.73       0.0 +/-    0.73  0.110 / 0.110
G20     117.5          17.4                7.9 +/-    1.86      18.6 +/-    1.86  0.120 / 0.100
G22     308.5          23.6                5.2 +/-    1.22      10.4 +/-    1.22  0.060 / 0.040
G25     83.8           14.4                6.8 +/-    5.06      17.1 +/-    5.06  0.080 / 0.040
G31     175.3          56.4                8.0 +/-    0.55       9.3 +/-    0.55  0.060 / 0.060
G32     26.7           58.3                6.4 +/-    0.97       7.4 +/-    0.97  0.060 / 0.060