PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-07:13:00
G03     248.9          68.7                5.6 +/-    0.84       6.0 +/-    0.84  0.040 / 0.050
G09     303.2          19.2                2.4 +/-    1.15       5.4 +/-    1.15  0.040 / 0.040
G14     97.8           16.8                3.5 +/-    1.51       8.4 +/-    1.51  0.130 / 0.200
G16     124.3          58.1                6.7 +/-    0.51       7.8 +/-    0.51  0.120 / 0.290
G22     197.8          57.8                7.8 +/-    0.54       9.1 +/-    0.54  0.050 / 0.050
G23     317.7          47.4                4.4 +/-    0.85       5.7 +/-    0.85  0.050 / 0.050
G26     69.3           50.8                5.3 +/-    0.79       6.7 +/-    0.79  0.030 / 0.040
G31     52.0           19.0                2.5 +/-    2.77       5.7 +/-    2.77  0.030 / 0.050