PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-13:42:40
G01     311.3          29.6                5.5 +/-    0.70       9.7 +/-    0.70  0.040 / 0.040
G10     100.2          44.0                7.2 +/-    0.75       9.8 +/-    0.75  0.040 / 0.050
G11     290.5          26.4                7.4 +/-    2.77      13.9 +/-    2.77  0.100 / 0.130
G14     336.4          69.3                5.0 +/-    0.53       5.3 +/-    0.53  0.110 / 0.170
G22     308.4          24.5                5.0 +/-    1.08       9.9 +/-    1.08  0.180 / 0.230
G25     88.2           15.0                7.5 +/-    1.89      18.8 +/-    1.89  0.260 / 0.300
G31     168.4          60.4                8.1 +/-    0.84       9.2 +/-    0.84  0.040 / 0.040
G32     31.7           55.3                5.6 +/-    0.73       6.6 +/-    0.73  0.040 / 0.040