PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-20:57:50
G02     62.9           30.9                7.3 +/-    1.53      12.6 +/-    1.53  0.030 / 0.040
G05     52.1           56.6                6.6 +/-    0.49       7.7 +/-    0.49  0.020 / 0.040
G12     181.0          24.0               10.9 +/-    3.96      21.9 +/-    3.96  0.080 / 0.180
G13     123.5          18.9               10.9 +/-    2.04      24.6 +/-    2.04  0.080 / 0.180
G15     163.3          15.1               10.9 +/-    2.83      27.1 +/-    2.83  0.100 / 0.090
G21     275.3          19.7                9.1 +/-    2.15      20.2 +/-    2.15  0.060 / 0.140
G25     228.4          47.7                9.6 +/-    1.16      12.4 +/-    1.16  0.120 / 0.300
G29     330.8          58.5                5.4 +/-    1.16       6.2 +/-    1.16  0.160 / 0.280