PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-17:27:10
G02     33.9           54.6                8.9 +/-    0.47      10.7 +/-    0.47  0.030 / 0.040
G05     133.5          66.1               10.7 +/-    0.74      11.6 +/-    0.74  0.030 / 0.040
G06     57.3           10.5                7.4 +/-    1.51      20.5 +/-    1.51  0.030 / 0.040
G12     188.0          58.7               11.9 +/-    1.02      13.7 +/-    1.02  0.040 / 0.050
G19     103.1          9.9                 8.6 +/-    0.82      23.9 +/-    0.82  0.050 / 0.060
G25     284.5          57.9               10.3 +/-    1.35      11.9 +/-    1.35  0.040 / 0.050
G29     310.9          31.5                7.3 +/-    1.19      12.5 +/-    1.19  0.110 / 0.270