PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-17:57:50
G05     48.1           20.0               12.3 +/-    0.62      26.9 +/-    0.62  0.060 / 0.190
G10     235.5          10.6               -6.7 +/-   49.32     -18.4 +/-   49.32  0.070 / 0.130
G13     79.1           37.4               15.2 +/-    0.95      23.1 +/-    0.95  0.040 / 0.040
G15     124.9          51.4               16.7 +/-    0.79      20.8 +/-    0.79  0.040 / 0.050
G18     244.6          42.1               17.4 +/-    1.87      24.5 +/-    1.87  0.110 / 0.200
G20     25.1           68.5               14.1 +/-    0.45      15.0 +/-    0.45  0.090 / 0.220
G21     314.1          48.5               11.9 +/-    0.76      15.3 +/-    0.76  0.040 / 0.080
G25     198.8          10.8               18.3 +/-    4.12      50.2 +/-    4.12  0.040 / 0.080
G26     293.5          18.8               11.6 +/-    1.56      26.3 +/-    1.56  0.270 / 0.560
G29     151.0          67.1               16.0 +/-    0.81      17.2 +/-    0.81  0.260 / 0.700