PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-17:58:00
G02     47.9           43.6               13.3 +/-    0.72      18.3 +/-    0.72  0.030 / 0.030
G05     86.5           70.0               15.2 +/-    0.73      16.1 +/-    0.73  0.030 / 0.030
G12     183.9          41.6               16.4 +/-    0.75      23.2 +/-    0.75  0.040 / 0.070
G25     252.0          57.8               14.5 +/-    1.76      16.8 +/-    1.76  0.050 / 0.080
G29     320.9          43.9               13.4 +/-    1.35      18.3 +/-    1.35  0.050 / 0.040