PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-19:27:50
G02     29.7           58.1                8.6 +/-    0.62       9.9 +/-    0.62  0.030 / 0.030
G05     141.5          61.2               11.6 +/-    0.70      13.0 +/-    0.70  0.030 / 0.040
G06     53.8           14.8                7.5 +/-    2.25      18.7 +/-    2.25  0.050 / 0.070
G12     191.2          66.1                9.6 +/-    0.29      10.4 +/-    0.29  0.060 / 0.060
G19     98.1           13.1               10.0 +/-    1.43      26.0 +/-    1.43  0.030 / 0.030
G25     297.8          53.5                9.0 +/-    1.17      10.9 +/-    1.17  0.030 / 0.030
G29     305.9          26.0               10.1 +/-    1.23      19.3 +/-    1.23  0.310 / 0.200