PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/30-22:12:30
G02     35.3           53.6                9.5 +/-    1.09      11.5 +/-    1.09  0.050 / 0.040
G05     131.4          64.8                9.8 +/-    0.69      10.7 +/-    0.69  0.050 / 0.040
G06     56.0           12.2                7.2 +/-    1.43      19.1 +/-    1.43  0.050 / 0.030
G12     191.3          62.5                9.9 +/-    0.88      11.0 +/-    0.88  0.050 / 0.030
G19     101.8          9.8                 9.7 +/-    1.24      27.1 +/-    1.24  0.100 / 0.090
G25     291.8          55.3                7.1 +/-    1.61       8.4 +/-    1.61  0.060 / 0.090
G29     309.0          29.3                7.8 +/-    0.91      13.9 +/-    0.91  0.130 / 0.280