PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-04:27:50
G01     248.5          34.2                7.2 +/-    1.81      11.7 +/-    1.81  0.030 / 0.030
G03     315.6          43.7                3.9 +/-    0.50       5.3 +/-    0.50  0.040 / 0.030
G14     62.1           40.0                3.4 +/-    1.19       4.9 +/-    1.19  0.090 / 0.110
G16     159.3          22.0                5.0 +/-    2.02      10.5 +/-    2.02  0.110 / 0.090
G18     218.6          25.5                6.0 +/-    2.39      11.6 +/-    2.39  0.050 / 0.080
G22     302.3          66.4                5.7 +/-    0.46       6.2 +/-    0.46  0.050 / 0.080
G26     131.1          40.6                5.6 +/-    0.85       8.0 +/-    0.85  0.120 / 0.250
G31     41.1           53.7                5.2 +/-    0.97       6.3 +/-    0.97  0.090 / 0.220
G32     80.1           19.9                5.4 +/-    1.08      11.8 +/-    1.08  0.110 / 0.240