PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-18:28:10
G02     35.3           53.6               11.4 +/-    0.86      13.8 +/-    0.86  0.030 / 0.030
G05     129.6          66.1               12.4 +/-    1.27      13.5 +/-    1.27  0.030 / 0.030
G06     57.5           9.8                10.1 +/-    0.96      28.2 +/-    0.96  0.060 / 0.050
G12     186.2          57.9               12.1 +/-    1.11      14.0 +/-    1.11  0.060 / 0.050
G19     103.1          9.4                12.1 +/-    2.17      34.1 +/-    2.17  0.030 / 0.040
G25     286.5          57.2                7.4 +/-    2.61       8.7 +/-    2.61  0.030 / 0.040
G29     310.3          30.7               12.2 +/-    1.25      21.0 +/-    1.25  0.180 / 0.220