PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-09:57:30
G02     35.1           53.4                5.0 +/-    0.91       6.0 +/-    0.91  0.020 / 0.030
G05     137.5          63.7                6.3 +/-    0.72       7.0 +/-    0.72  0.030 / 0.030
G06     54.2           15.9                3.4 +/-    1.46       8.3 +/-    1.46  0.040 / 0.050
G12     198.1          66.2                5.0 +/-    0.29       5.4 +/-    0.29  0.030 / 0.040
G19     101.1          9.7                 8.2 +/-    3.92      23.0 +/-    3.92  0.020 / 0.030
G25     285.6          59.3                1.1 +/-    1.62       1.3 +/-    1.62  0.030 / 0.030
G29     309.9          31.4                4.5 +/-    1.15       7.6 +/-    1.15  0.110 / 0.170