PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-15:27:50
G01     311.5          30.0                6.9 +/-    1.43      12.1 +/-    1.43  0.050 / 0.050
G10     100.2          42.9                7.4 +/-    0.46      10.2 +/-    0.46  0.050 / 0.040
G11     286.4          28.1                2.9 +/-    0.96       5.3 +/-    0.96  0.100 / 0.190
G14     346.4          69.2                5.5 +/-    0.75       5.8 +/-    0.75  0.070 / 0.150
G18     280.7          51.2                0.9 +/-    1.01       1.1 +/-    1.01  0.110 / 0.110
G20     117.1          17.9                7.2 +/-    1.89      16.6 +/-    1.89  0.110 / 0.120
G22     308.2          22.9                5.0 +/-    1.16      10.4 +/-    1.16  0.040 / 0.040
G25     84.3           14.1                6.6 +/-    4.39      16.8 +/-    4.39  0.040 / 0.040
G31     175.8          55.5                7.9 +/-    0.44       9.4 +/-    0.44  0.050 / 0.050
G32     26.1           58.6                6.1 +/-    0.90       7.0 +/-    0.90  0.060 / 0.050