PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-00:42:50
G02     43.7           46.2                9.8 +/-    0.39      12.9 +/-    0.39  0.050 / 0.070
G05     106.2          68.7               12.7 +/-    0.51      13.5 +/-    0.51  0.050 / 0.060
G12     189.0          53.8               16.4 +/-    1.78      19.8 +/-    1.78  0.030 / 0.040
G25     276.4          57.9               13.5 +/-    0.74      15.6 +/-    0.74  0.030 / 0.050
G29     314.9          36.1               13.3 +/-    1.04      20.7 +/-    1.04  0.040 / 0.040